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22nd General Congress of the International Commission for Optics (ICO-22) Light for the development of the world

ABSTRACTS BOOK Ramón Rodríguez-Vera (CIO) Rufino Díaz-Uribe (CCADET-UNAM) Editors

15 -19 August 2011 Puebla, Mexico

Organized by: Centro de Investigaciones en Óptica, A.C. (CIO) Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) Universidad Nacional Autónoma de México (UNAM-CCADET) Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE)

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Conference Committees Conference Chairs Fernando Mendoza-Santoyo, General Chair, CIO (México) Alejandro Cornejo-Rodríguez, General Co-Chair, INAOE (México)

International Scientific Committee Ramón Rodríguez-Vera, Chair, CIO (MÉXICO) Rufino Díaz-Uribe Co-chair, CCADET-UNAM (MÉXICO) Eva Acosta (SPAIN) G.P. Agrawal (USA) Armando Albertazzi (BRAZIL) Miguel Andrés (SPAIN) Yasuhiko Arakawa (JAPAN) Anand Asundi (SINGAPORE) Eusebio Bernabeu (SPAIN) Angel Calderin Augier (CUBA) Maria Luisa Calvo-Padilla (SPAIN) Roman Castañeda (COLOMBIA) K. Chalasinka-Macukow (POLAND) Pierre Chavel (FRANCE) Sabino Chávez-Cerda (MEXICO) Siu Chungtam (SINGAPORE) Chris Dainty (UK) Nikolai Espinosa (ECUADOR) V.L. Fajer-Ávila (CUBA) Manuel Fernández-Guasti (MEXICO) Cosme Furlong (USA) Jaime Frejlch (BRAZIL) Ari T. Friberg (FINLAND) Joseph W. Goodman (USA) Peter Gunter (SWITZERLAND) Angela M. Guzman (USA) Hans Peter Herzig (SWITZERLAND) Emmanuel Haro-Poniatowska (MEXICO) John Holdsworth (AUSTRALIA) Rocio Jauregui (MEXICO) Guillermo Kaufmann (ARGENTINA) Ursula Keller (SWITZERLAND) Malgorzata Kujawinska (POLAND

Alfonso Lastras (MEXICO) Fredrik Laurell (SWEDEN) Lother Lilge (CANADA) Daniel Malacara-Hernández (MEXICO) Eugenio Méndez-Méndez (MEXICO) Sagrario Millán García-Varela (SPAIN) Andrew Moore (UK) Héctor Moya-Cessa (MEXICO) Wolfgang Osten (GERMANY) Hector J. Rabal (ARGENTINA) Yvon Renotte (BELGIUM) Giancarlo C. Righini (ITALY) Gustavo Rodríguez-Zurita (MEXICO) Peeter Saari (ESTONIA) José Sasián (USA) Kedro Sidiki Diomande (IVORY COAST) Maria Strojnik (MEXICO) J. Shamir (ISRAEL) Lluis Torner (SPAIN) Marcelo Trivi (ARGENTINA) Jim Trolinger (USA) Eric Van Stryland (USA) Gert Von Bally (GERMANY) Valentin I. Vlad (ROMANIA) Ahmadou Wague (SENEGAL) Bernardo Wolf-Kurt (MEXICO) Maria Yzuel (SPAIN) Evgueni M. Zolotov (RUSSIA) Joris J.J. Dirckx (BELGIUM)

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National Organizing Committee Raúl Rangel-Rojo, Chair, CICESE (México) Roberto Machorro, Co-Chair, UNAM (México) Jorge Gaspar-Armenta, UNISON (México) Oracio Barbosa-García, CIO (México) Héctor Cerededo, UV (México) Miguel Cervantes, UNISON (México) Alberto Cordero-Dávila, BUAP (México) Jorge Luis Flores, U. de G. (México) Guillermo García-Torales, U. de G. (México) Julio C. Gutiérrez-Vega. ITESM (México) José Luis Hernández Pozos, UAM (México) Ricardo Legarda-Sáez, UADY (México)

Erwin Martí-Panameño, BUAP (México) Brenda Martínez, U. de G. (México) Roberto Ortega-Martínez, (México) Eric Rosas, CENAM (México) Martha Rosete-Aguilar, CCADET-UNAM (México) Romeo Selvas, UANL (México) Diana Tentori, CICESE (México) Miguel Torres, UG (México) Volke Sepulveda Karen, UNAM (México)

Local Organizing Committee Fermín Granados, Chair, INAOE (México) Sergio Vázquez, Co-Chair, INAOE (México) Cruz Meneses-Fabián, BUAP (México) Amalia Martínez-García, CIO (México) Rosario Pastrana, BUAP (México) Carlos Treviño, INAOE (México)

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ORGANIZED BY CIO – Centro de Investigaciones en Óptica, A.C. (México)

INAOE – Instituto Nacional de Astrofísica, Óptica y Electrónica (México)

UNAM – Universidad Nacional Autónoma de México

CCADET-UNAM – Centro de Ciencias Aplicadas y Desarrollo Tecnológico de la UNAM (Mexico)

CICESE – Centro de Investigación Científica y de Educación Superior de Ensenada (México)

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SPONSORED BY

CONACYT – Consejo Nacional de Ciencia y Tecnología (México)

SPIE – The International Society for Optical Engineering

BUAP – Benemérita Universidad Autónoma de Puebla

ICO – International Commission for Optics

OSA – Optical Society of America

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AMO – Academia Mexicana de Óptica, A.C.

CLAF – Centro Latinoamericano de Física

ICTP – International Centre for Theoretical Physics

IUPAP – International Union of Pure and Applied Physics

PI – Physik Instrumente

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EXHIBITORS

LITERATOS S.A DE C.V

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Foreword On behalf of Dr. Fernando Mendoza-Santoyo, General Chair of the 22th General Congress of the International Commission for Optics (ICO-22) we would like to welcome you to what we believe will be an extraordinary event, ICO-22 light for the development of the world. Back in the winter of 2008 Mexico was chosen as the host country, a decision reached ICO General Congress is during the General assembly of the ICO in Sydney, Australia. The ICO General Congress is held every three years and is indeed the premium event among all ICO events. 2011 is the year when Mexico is garlanded to host ICO22 and is pleased to receive all the participants, highly qualified scientists, engineers, technicians, and students from all over the world. The city of Puebla of the Angels was chosen as the scenario to hold the ICO-22: the city is in itself considered by UNESCO as a World Heritage City. Most of the Congress activities will be held at the William O. Jenkins Convention Centre, during the week of August 1519, 2011. A total of 592 papers will be presented during five days, making of this Congress one of the most hectic of recent years. Authors come from 46 different countries, thus endowing this Congress with a truly international character, a characteristic feature of the International Commission for Optics. We are proud to specially welcome all those attendees from African countries, who were fully supported by ICO22 Mexican sponsor institutions. Among the invited speakers there will be paper presentations by distinguished researchers granted with the 2010 ICO Prize (Abbe‘s Lecture), 2010 ICO Galileo Galilei Award, 2009 IUPAP Young Scientist Prize in Optics, 6 Plenary, 49 Invited Keynotes, and 2 Special Talks, all in all a total of 60 invited speakers. Along the busy week schedule all of us will be able to exchange work experiences by sharing ideas and scientific and technical knowledge, and not less important we will make new long lasting friendships. All the organizers have taken the right steps to create an easy, friendly and casual atmosphere, hoping we all will find time to fulfil these goals. Aside from the invited talks, the scientific program contains 50 simultaneous sessions and three posters sessions. Each simultaneous session starts with an invited keynote presentation.

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The simultaneous sessions are divided in 11 rather ample themes that embrace all the topics of classical and modern optics. These are: AOA BMO FDI IAPD NO OE OIS

Applied Optics to Artwork Bio-Medical Optics Fabrication, Design and Instrumentation Information Acquisition, Processing and Display Nanotechnology and Optics Optical Engineering Optical Interaction Science

POE SS TO VC

Photonics and Opto-Electronics Science & Society Theoretical Optics Vision and Colour

Recently, we sent all Corresponding Authors a paper code and presentation data, viz.: Identification number (ID #), the thematic, day and time of your session and presentation. As an example: if your paper ID number is 2280000, POE, Mo, am, use this booklet and go to POE- Photonics and Opto-Electronics, on early morning Monday. The room name is pointed out at the top of each session. Please note that we will be having a special Student Award presentations kindly funded by SPIE and OSA. We encourage all students to attend this ceremonies, the prize is in cash! An important part of ICO-22 will be the vendor exposition. Vendors will display their latest products, please browse around the exhibitors area, no doubt you will find the latest technology from these vendors. The exhibition will take place from Tuesday to Thursday in room La Luz. You can find in this booklet details of participating companies and academic. The social aspect is an issue not less important than the scientific one. During the week we will have several social gatherings and events that will no doubt enrich the ICO22 and provide all attendees and their companions with an unforgettable WEEK with us, in Puebla, and in Mexico. We will begin on Monday night with a welcome cocktail in a casual atmosphere. On Tuesday we will have a tourist trip to the archaeological site of Teotihuacán. Please bring your raincoat and cap with you, August is a rainy season in the region and we certainly expect some afternoon showers. Box lunches will be provided for the trip to Teotihuacan, a ride that will take under 2 hours. On Wednesday night we will have the Conference Gala Dinner. Dinner will comprise a variety of true Mexican food, specially cooked for you. We will enjoy the Mariachi music and why not, some music to dance so we all get rid of the midweek stress! Please don't forget to bring your dinner ticket, we will have a lot of fun. Finally, on Thursday we will have Mexican folk music and ix

dances, that will be staged at the Benemerita University Complex (BUAP, buses will take us there and back). This ICO22 General Congress would not have been possible without the intensive and enthusiastic participation of our colleagues in all the organizing committees. We would like to thank them all by name here, but the list is so large that we ask you to look at their names listed at the top of this booklet, THANK YOU!. Our gratitude is also extended to our sponsors: CONACYT, SPIE, BUAP, OSA, AMO, CLAF, ICTP, IUPAP, and PI. Last but not at all least, our deepest gratitude and appreciation go to all CIO´s technical staff for their support (administrative and computer engineers), and in particular to ICO22 Secretary Ms. Annette Torres Toledo (what can we do without you!) and her young trainee Maria Lara-Villalpando, and co-worker Mrs. Claudia Medina-Sanchez, thank you girls for your invaluable technical support in the preparation of this booklet, the extreme care in the bookkeeping and general organization of the Congress. The ICO-22 International Scientific Committee

Ramon Rodriguez-Vera, Chair Rufino Diaz-Uribe, Co-chair

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GENERAL INFORMATION

Registration Hours: Registration Desk, William O. Jenkins Convention Centre Sunday, August 14, 2011 Monday, August 15, 2011 Tuesday, August 16, 2011 Wednesday, August 17, 2011 Thursday, August 18, 2011 Friday, August 19, 2011

15:00-18:00 h. 9:00-18:00 h. 9:00-13:30 h. 9:00-18:00 h. 9:00-18:00 h. 9:00-11:00 h.

Exhibition Hours Room La Luz Vendors will display their latest products, please browse around the exhibitor‘s area, no doubt you will find the latest technology from these vendors. The exhibition will take place from Tuesday to Thursday in room La Luz. The Exhibition hours are as follows: Tuesday, August 16, 2011 Wednesday, August 17, 2011 Thursday, August 18, 2011

9:00-13:30 h. 9:00-18:00 h. 9:00-18:00 h.

Message Centre A message board will be located at the Congress Registration area for those who wish to contact fellow attendees. IMPORTANT The message board will also be used to post last-minute program changes. All attendees are urged to check this board frequently.

Audio visual equipment Each session room will be supplied with a LCD projector and microphone. Authors will be able to present his/her contribution using the previously uploaded file (done at the Storing Centre or the Audiovisual Room La Esperanza).

Poster Session Details We recommend that posters are made with a portrait format (vertical) and should have a maximum size of 120cm high by 90cm wide, corresponding to a A0 page format. Velcro tape and/or self-adhesive tape will be provided on site to fix their posters onto the boards. Location of posters is as shown in the enclosed diagram.

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Posters will be displayed at "La Luz Room" during the following times: Monday August 15, from 16:00 to 18:00 h. Wednesday August 17, from 16:00 to 18:00 h. Thursday August 18, from 16:00 to 18:00 h. Authors are requested to consult the technical program to find the tracking number of their respective poster, and should ensure that their poster is placed on the board showing the appropriate index number (please do this well in advance before the start of the corresponding poster session). We kindly ask the author or co-author of the work to be available at his/her poster to answer questions and discuss their research. Posters should be removed after at the end of each session. Although organizers will do their best to retrieve posters left behind, they cannot guarantee the safe keeping of these posters.

Technical papers Due to circumstances beyond our control, some undesired modifications to the technical program have occurred since the advance program was issued a few weeks ago. These changes were the result of papers being withdrawn or request to session change by the authors. If you are interested in the subject of the withdrawn papers, we suggest that you contact the author directly.

Proceedings The ICO-22 Congress Proceedings are being produce by SPIE and will be available soon after the Congress is over. All contributed papers are being reviewed and may require revision before they are published on the SPIE Digital Library and in the Proceedings of SPIE book volumes. We thank all attendees for your kind understanding on this matter. However, a non-edited and no reviewed version of all manuscripts may be found in the USB device given to attendees at registration. We will let you know when the definite SPIE version is available.

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PROGRAM

Monday 15 8:30-9:00

Opening

El Alto

9:00-10:00

Plenary 1

El Alto

Chair: Fernando Mendoza-Santoyo, México 2285662 SPECKLE CONTRAST MEASUREMENT WITH LOW LIGHT LEVELS AND IMPERFECT LASER ILLUMINATION JOSEPH W. GOODMAN Stanford University, USA

10:15-11:45

OIS 1

Constancia

Optical Interaction Science Chair: Elder de la Rosa, CIO, México Co-Chair: Andreas Norrman, Aalto University, Finland 10:15-10:45 2285956 OIS1 Invited Keynote MIE-SCATTERING OF LIGHT WITH ORBITAL ANGULAR MOMENTUM BY NANOPARTICLES ACHARYA P., GUZMÁN A.M. Florida Atlantic University, USA

10:45-11:00 2284661 OIS1Oral DEPENDENCE OF THE LOCAL ENHANCEMENT OF ELECTROMAGNETIC FIELDS ON THE ILLUMINATION DIRECTION KHAKIMOV R., SHEVCHENKO A., KAIVOLA M. Aalto University, Finland

11:00-11:15 2284698 OIS1 Oral ENHANCEMENT OF SI NANOCRYSTALS PHOTOLUMINESCENCE IN PRESENCE OF AG NANOPARTICLES BORNACELLI J., REYES-ESQUEDA J.A., RODRIGUEZ-FERNÁNDEZ L, SILVA-PEREYRA H.G., OLIVER A Instituto de Física, Universidad Nacional Autónoma de México 1

11:15-11:30 2285671 OIS1 Oral ENHANCEMENT OF ALPHA-AL203: C PHOTOLUMINESCENCE WHEN DOPED WITH AU NANOPARTICLES MÉNDEZ-RESÉNDIZ L.C.1, JIMÉNEZ-HERNÁNDEZ J.L.1, MOTA-SANTIAGO P.E.1, CRESPO-SOSA A.1, REYES-ESQUEDA J.A.1, OLIVER A.1, BARBOZA-FLORES M.2 1 Instituto de Física, Universidad Nacional Autónoma de México/2Universidad de Sonora, Departamento de Investigación en Física

11:30-11:45 2285318 OIS1 Oral OPTICAL CHARACTERISTICS OF THIN FILM MOLYBDENUM OXIDES INDUCED BY ULTRASHORT LASER PULSES CANO M.1, CAMACHO S.1, CAMACHO M.A.2, ESPARZA A.3 1 CICESE-Departamento de Óptica/2UAEM-Facultad de Química/3UNAM-Fotofísica y Películas Delgadas

12:00-13:30

OIS 2

Constancia

Optical Interaction Science Chair: Ángela Guzmán, Florida Atlantic University, USA Co-Chair: Francisco Villa, CIO. México 12:00-12:30 2286179 OIS2 Invited Keynote ONE POT SYNTHESIS OF FE3O4 MAGNETIC NANOPARTICLES BY PRECIPITATION METHOD PÉREZ-MAYEN L.P.M.1, CHAMÉ-FERNÁNDEZ K.C.F.1, DE LA ROSA E.R.C.1, TORRES A.T.2 1 Centro de Investigaciones en Óptica A.C./2FIME, Universidad Autónoma de Nuevo León

12:30-12:45 2284851 OIS2 Oral SURFACE PLASMON PROPAGATION IN NOVEL MULTILAYERED METALLIC THIN FILMS FERRI F.A.1, RIVERA V.A.G.1, SILVA O.B.1, ZANATTA A.R.1, BORGES B.-H.V.2, MAREGA JR. E.1, WEINER J.1 1 Instituto de Física de São Carlos, USP, Brazil/2Departamento de Engenharia Elétrica, EESC, USP, Brazil

12:45-13:00 2285090 OIS2 Oral PARTIAL SPATIAL COHERENCE AND POLARIZATION PROPERTIES OF SURFACE-PLASMON FIELDS NORRMAN A.1, SETALA T.1, FRIBERG A.T.2 1 Aalto University/2Aalto University, University of Eastern Finland, Royal Institute of Technology 2

13:00-13:15 2285121 OIS2 Oral OBSERVATION OF SURFACE PLASMONS IN AN AL-COATED SNOM TIP PALM V., RäHN M.1, HIZHNYAKOV V. Institute of Physics, University of Tartu

13:15-13:30 2286015 OIS2 Oral SHAPE AND SIZE CONTROLLED VISIBLE PHOTO-CHEMICAL SYNTHESIS OF SILVER NANOPARTICLES UPENDRA KUMAR K.1, CARDOSO-ALIVA P.E.2, PICHARDO-MOLINA J.L.2 1 Division de ciencias e ingenierías, Universidad de Guanajuato. Campus León, León Gto, México/ 2Centro de Investigaciones en Óptica A. C., León Guanajuato, México.

10:15-11:45

FDI 1

Angelópolis

Fabrication, Design and Instrumentation Chair: Izabela Naydenova, Ireland Co-Chair: Eric Rosas, CENAM, México 10:15-10:45 2285382 FDI1 Invited Keynote RULES FOR OPTICAL METROLOGY PHILIP H. STAHL NASA

10:45-11:00 2284915 FDI Oral SOME OF TESTING METHODS OF SURFACE PARAMETERS OF NONIMAGING MIRROR SEGMENTS SCHOVANEK P., HRABOVSKY M., PALATKA M., PECH M., MANDAT D., NOZKA L., HIKLOVA H. Joint Laboratory of Optics, Institute of Physics of AS CR, Czech Republic

11:00-11:15 2285697 FDI1 Oral MEASUREMENT OF ABSOLUTE OPTICAL THICKNESS BY WAVELENGTH TUNING INTERFEROMETER HIBINO K1, KIM Y2, BITOU Y1, MITSUISHI M3 1 National Institute of Advanced Industrial Science and Technology/2Korean Institute of Machinery and Materials/3University of Tokyo

11:15-11:30 2285978 FDI1 Oral 3

LATERAL SHEAR FOR PHASE-SHIFTING INTERFEROMETRY ROBLEDO-SÁNCHEZ C. I.1, MENESES-FABIAN C.1, AREVALO-AGUILAR L.M.1, NANCOHERNÁNDEZ P.2, IXBA-SANTOS V.1, RODRÍGUEZ-ZURITA G.1, CORDERO-DÁVILA A.1 1 Fac. Ciencias Físico Matemáticas, BUAP./2Fac. Ciencias de la Electrónica, BUAP

11:30-11:45 2286168 FDI1 Oral OPTICAL TESTING OF THE SURFACE QUALITY OF A VARIABLE FOCAL LENGTH LENS WITH NULL-SCREENS CAMPOS-GARCÍA M.1, SANTIAGO-ALVARADO A.2, MORENO-OLIVA V.I.3, DÍAZ-URIBE R.1 1 Universidad Nacional Autónoma de México, Centro de Ciencias Aplicadas y Desarrollo Tecnológico/2Universidad Tecnológica de la Mixteca/3Universidad del Istmo

12:00-13:30

FDI 2

Angelópolis

Fabrication, Design and Instrumentation Chair: Philip H. Stahl, NASA, USA Co-Chair: Manuel Campos-García, CCADET-UNAM, Mexico 12:00-12:30 2285161 FDI2 Invited Keynote DYE DEPOSITION LITHOGRAPHY – A VERSATILE METHOD FOR FABRICATION OF OPTICAL FAN-OUT DEVICES CLARKE G1, PAVANI K1, ATHANASEKOS L2, MARTIN S1, VAINOS N2, TOAL V1, NAYDENOVA I1 1 Dublin Institute of Technology/2University of Patras, National Hellenic Research Foundation-NHRF

12:30-12:45 2285146 FDI2 Oral VALIDATION OF THE CRYOGENIC OPTO-MECHANICS FOR THE LENSES OF FRIDA INSTRUMENT LUIS ALVAREZ L.A.1, SALVADOR CUEVAS S.C.1, OSCAR CHAPA O.C.1, CARLOS ESPEJO C.E.1, VICENTE BRINGAS V.B.2, ADI CORRALES A.C.2, RENE ESTRADA R.E.2, DIANA LUCERO D.L.2 1 Instituto de Astronomía Universidad Nacional Autónoma de México/2Centro de Ingeniería y Desarrollo Industrial

12:45-13:00 2285380 FDI2 Oral CALIBRATION OF A SHACK-HARTMANN SENSOR (SHS) WITH A POINT DIFFRACTION INTERFEROMETER (PDI) TO MEASURE THE WAVEFRONT ABERRATIONS OF THE HUMAN EYE GARCIA-FLORES P.C., DIAZ-URIBE J.R. Universidad Nacional Autónoma de México - Centro de Ciencias Aplicadas y Desarrollo Tecnológico

13:00-13:15 2285960 FDI2 Oral 4

DRAGGING FORCE AND ASTIGMATISM SURFACE IN COMMERCIAL POLISHING MACHINES LEMUS G.P.1, CORDERO A.1, IZAZAGA R.2 1 Benemérita Universidad Autónoma de Puebla/2Instituto Nacional de Astrofísica, Óptica y Electrónica

13:15-13:30 2286031 FDI2 Oral ILLUMINANCE SPATIAL DISTRIBUTION BASED TOTAL LUMINOUS FLUX DETERMINATION FOR WHITE LEDS VIDAL N., ROSAS E., HURTADO-RAMOS J.B. Centro Nacional de Metrología, México

10:15-11:45

POE 1

Oriental

Photonics and Opto-Electronics Chair: Javier Sánchez-Mondragón, INAOE, México Co-Chair: Miguel Alonso, University of Rochester, USA 10:15-10:45 2286192 POE1 Invited Keynote ADVANCED APPLICATIONS OF OPTICAL FIBER SENSORS ALEXIS MÉNDEZ MCH Engineering, USA

10:45-11:00 2285717 POE1 Oral PHOTONIC CRYSTAL INTEGRATED IN A WAVEGUIDE OF A PERFECT CONDUCTOR MENDOZA SUÁREZ ALBERTO M.S.1, PÉREZ AGUILAR HÉCTOR P.A.1, VILLA VILLA FRANCISCO V.V.2 1 Universidad Michoacana de San Nicolás de Hidalgo/ 2Centro de Investigaciones en Óptica A.C.

11:00-11:15 2285475 POE1Oral FIBER OPTIC MULTIPLEXED SENSORS USING COHERENT CORRELATION DOMAIN REFLECTOMETRY ARIAS A., SHLYAGIN M.G. Centro de Investigación Científica y de Educación Superior de Ensenada, México

11:15-11:30 2285585 POE1 Oral MANUFACTURING A CHALCOGENIDE GLASS CORE FIBER WITH A SILICA CAPILLARY LOPEZ D.1, TARASENKO O.2, MARGULIS W.2 1 KTH, INAOE/2ACREO 5

11:30-11:45 2284717 POE1 Oral PLASTIC OPTICAL FIBER TO ASSIST FREQUENCY RESPONSE IN PHOTODETECTORS CERECEDO-NÚÑEZ H.H., MÉNDEZ-CRUZ J. E., PADILLA-SOSA P. , SÁNCHEZ-OREA J. , GONZÁLEZ-MARTÍNEZ F.J. Universidad Veracruzana, México

10:15-11:45

OE 1

Violeta 1

Optical Engineering Chair: Colin J.R. Shepard, National University of Singapore Co-Chair: Noé Alcalá-Ochoa, CIO, México 10:15-10:45 2283983 OE1 Invited Keynote INVARIANT CORRELATION BY USING VECTORIAL SIGNATURES AND SPECTRAL INDEX FIMBRES-CASTRO CLAUDIA C.FC.1, ÁLVAREZ-BORREGO JOSUÉ J. AB.2, BUENO-IBARRA MARIO ALONSO M.A.BI.3 1 Facultad de Ingeniería, Arquitectura y Diseño de Ensenada, B. C./ 2CICESE/3CIIDIR-IPN

10:45-11:00 2285205 OE1 Oral AUTHENTICATION OF PAPER BY CLASSIFYING ITS VISUAL MICRO TEXTURE KURMYSHEV E.V.1, GUILLEN-BONILLA J.T.2 1 Centro de Investigaciones en Óptica, A.C., México/2University of Johannesburg, Republic of South Africa

11:00-11:15 2285712 OE1 Oral EDGE DETECTION OF FINGERPRINT WITH THE RADIAL HILBERT TRANSFORM YAILETH JOHANNA MORALES DAZA MORALES Y.J, CESAR ORLANDO TORRES TORRES C.O, LORENZO MATTOS VASQUEZ MATTOS L. Universidad Popular del Cesar, Colombia

11:15-11:30 2285821 OE1 Oral PERFORMANCE MEASURES FOR RECOGNITION IN A WAVELET JOINT TRANSFORM CORRELATOR MESTRE CARRILLO G.I.1, TORRES MORENO C.2 1 Universidad de la Salle/2Universidad Popular del Cesar, Colombia

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11:30-11:45 2286076 OE1Oral DESIGN OF A 3D DIGITALIZER BY USING AN INTERFEROMETRIC PATTERN RANGEL-BARBOSA F.J., PÉREZ-PANTOJA E., AGUILERA-GÓMEZ E., GUZMÁN-CABRERA J.R., TORRES-CISNEROS M. DICIS, Universidad de Guanajuato

12:00-13:30

OE 2

Violeta 1

Optical Engineering Chair: Josué Álvarez-Borrego, CICESE, México Co-Chair: Yaileth Morales Daza, Universidad Popular del Cesar, Colombia 12:00-12:30 2286213 OE2 Invited Keynote PHASE SPACE AND PHASE IMAGING SHEPPARD C.J.R.1, MEHTA S.B.2 1 Optical Bioimaging Laboratory, Division of Bioengineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117543 2 Optical Bioimaging Laboratory, Division of Bioengineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 Singapore-MIT Alliance for Research and Technology (SMART), 3 Science Drive 2, Singapore 117543, Singapore

12:30-12:45 2284495 OE2 Oral NOVEL APPROACHES FOR NEAR AND FAR FIELD SUPER RESOLVED IMAGING ZALEVSKY 1, BEIDERMAN 1, MICÓ 2, GARCÍA 2 1 Bar-Ilan University/2University of Valencia

12:45-13:00 2285685 OE2 Oral HYBRID SUPER-RESOLVING PUPILS WITH SMOOTH PROFILE ALCALÁ OCHOA N.1, LANDGRAVE J. E. A.1, GARCÍA-MÁRQUEZ J.1, GONZÁLEZ-VEGA A.2 1 Centro de Investigaciones en Óptica, A.C./2División de Ciencias e Ingeniería, Universidad de Guanajuato

13:00-13:15 2285831 OE2 Oral ANALYSIS OF NEAR FIELD MICROWAVE AND CONVENTIONAL OPTICAL IMAGES LÓPEZ-MALDONADO G., VARGAS-HERNÁNDEZ. H., ORDÓÑEZ-ROMERO C.L., AVENDAÑOALEJO. M., KOLOKOLTSEV. O., QURESHI. N. Universidad Nacional Autónoma de México. 7

13:15-13:30 2286009 OE2 Oral KNOW PLAINTEXT ATTACK ON THE 4F AND JTC OPTICAL ENCRYPTING SYSTEMS VARGAS C.A.1, BARRERA J.F.2, TORROBA R.3, TEBALDI M.3, BOLOGNINI N.3 1 Universidad Catolica de Oriente/2Universidad de Antioquia/3Universidad Nacional de La Plata

12:00-13:30

IAPD 1

Oriental

Information Acquisition, Processing and Display Chair: Emilia Giorgetti, ISC-CNR, Italy Co-Chair: Raúl A. Vázquez-Nava, CIO, México 12:00-12:30 2286226 LARGE APERTURE QPM DEVICES TOWARD GIANT MICRO-PHOTONICS TAKUNORI TAIRA Institute for Molecular Science, 38 Nishigonaka, Myodaili, Okazaki 444-8585 Japan

12:30-12:45 2284708 IAPD1 Oral CAVITY-ENHANCED DIRECT FREQUENCY COMB SPECTROSCOPY REYES-REYES A.1, ZEITOUNY M.G.1, VAN MASTRIGT E.2, PERSIJN S.T.3, BHATTACHARYA N.1, URBACH H.P.1 1 Delft University of Technology/2Erasmus MC-Sophia Children‘s Hospital/3VSL, Delft

12:45-13:00 2284756 IAPD1 Oral STUDY OF THE DYNAMICAL BEHAVIOR OF THE LIBS PLASMA UNDER CONDITIONS OF LOW ATMOSPHERIC PRESSURE JIJÓN D., COSTA-VERA C. Escuela Politécnica Nacional, Ecuador

13:00-13:15 2286139 IAPD1 Oral CONSTRUCTION OF A SEMI AUTOMATIC M-LINES SPECTROSCOPY DEVICE HERNANDEZ-PEREZ M.A.1, VILLANUEVA-IBAÑEZ M.2, GARNICA-PACHECO J.V.2, AGUILARHERNANDEZ J.R.3, FLORES-GONZALEZ M.A.2 1 Instituto Politécnico Nacional, ESIQIE/2Universidad Politécnica de Pachuca/3Instituto Politécnico Nacional, ESFM

8

13:15-13:30 2286197 IAPD1 Oral I.R. LASER-BASED REMOTE SENSING SYSTEM FOR AMBIENT AIR QUALITY MONITORING TAIEB GASMI Division of Sciences & Engineering Saint Louis University-Madrid Camp

10:15-11:45

BMO 1

Violeta 2

Bio-Medical Optics Chair: Giancarlo Righini, IFA- CNR, Italy Co-Chair: Gerardo Gutiérrez-Juárez, UG, México 10:15-10:45 2286209 BMO1 Invited Keynote GAS IN SCATTERING MEDIA ABSORPTION SPECTROSCOPY (GASMAS) FROM MATERIAL SCIENCE TO HUMAN GAS-FILLED CAVITY MONITORING SUNE SVANBERG Physics Department and Lund Laser Centre, Lund University, Sweden

10:45-11:00 2285045 BMO1 Oral MULTIFOCAL NONLINEAR MICROSCOPE WITH SINGLE ELEMENT DETECTOR FOR MULTIDEPTH IMAGING CARRILES R.1, HOOVER E.E.2, FIELD J.J.2, SHEETZ K.E.3, SQUIER J.A.2 1 Centro de Investigaciones en Óptica A.C./2Colorado School of Mines/3United States Military Academy

11:00-11:15 2284229 BMO1 Oral TUNABLE ULTRASHORT FS-PULSES BASED ON PHOTONIC FIBER CRYSTALS FOR NONLINEAR MICROSCOPY LICEA-RODRIGUEZ J., ROCHA-MENDOZA I., RANGEL-ROJO R. Optics Department / CICESE

11:15-11:30 2285794 BMO1 Oral EXTRACTING CHROMOPHORE CONCENTRATION INFORMATION FROM CONTINUOUS-WAVE TRANS-ILLUMINATION BREAST SPECTROSCOPY DATA WALTER E, LILGE L. University of Toronto/University Health Network

9

11:30-11:45 2286218 BMO1 Oral PHYSIC AND AGRICULTURE KEDRO DIOMANDE Universite de Cocody, Ivory Coast

12:00-13:30

TO 1

Violeta 2

Theoretical Optics Chair: Kurt Bernardo Wolf, ICF-UNAM, México Co-Chair: Nicole Moore, Beloit College, USA 12:00-12:30 2285900 TO1 Invited Keynote OPTICAL EFFECTS CONNECTED WITH SPIN-ORBIT COUPLING OF A PHOTON NATALIYA KUNDIKOVA Nonlinear Optics Laboratory, Institute of Electrophysics, South Ural State University, Russia

12:30-12:45 2284853 TO1 Oral BEAM MAPPING ON THE ORBITAL POINCARÉ SPHERE ALIEVA T.1, CÁMARA A.1, BASTIAANS M.J.2 1 Universidad Complutense de Madrid/2Eindhoven University of Technology

12:45-13:00 2284589 TO1 Oral STRATIFIED MEDIA: NONLINEAR ODE IS BETTER FERNANDEZ-GUASTI M, DIAMANT R. Universidad Autónoma Metropolitana – Iztapalapa, México

13:00-13:15 2284621 TO1 Oral SPECKLE ISSUED FROM NUMEROUS INDEPENDENT LASER BEAMS LE CAIN A.L.C1, RIAZUELO G.R2, SAJER J.M.S1 1 CEA CESTA 33114 Le Barp/2CEA/DAM/DIF Bruyères le Châtel

13:15-13:30 2285286 TO1 Oral OPTICAL RESONATOS AND DYNAMIC MAPS ABOITES V., WILSON M. Centro de Investigaciones en Óptica A.C., México

10

15:00-16:00

Plenary 2

El Alto

Chair: José Luis Maldonado-Rivera, CIO, México 2286188 QUANTUM DOT NANOPHOTONICS: FROM OPTICAL SCIENCE TO PRACTICAL IMPLEMENTATION YASUHIKO ARAKAWA Institute for Nano Quantum Information Electronics, The University of Tokyo, Japan

16:00-18:00

Poster Session 1

La Luz

Chair & Jury: Manuel Costa, Universidade do Minho, Portugal Co-chairs: Marija Strojnik, CIO, México Francisco Renero, INAOE, México Guillermo Baldwin, PUCP, Perú Hector Cerecedo-Núñez, UV, México Ricardo Legarda, UADY, México

OIS

La Luz

Optical Interaction Science 2284607 OPTICAL CHARACTERIZATION OF FILMS OF ASPHALTENES USING DIFFUSE REFLECTION SPECTROSCOPY MUNOZ MORALES A,A1, NAREA F.2, LABRADOR H.3 1 Laboratorio de Ultraestructura, Centro de Investigación Médica y Biotecnológica de la Universidad de Carabobo, Facultad de Ciencias de la Salud/2Laboratorio de Espectroscopia de Óptica de Superficies, Grupo de Instrumentación y Óptica, Departamento de Física, Facultad Experimental de Ciencias y Tecnología/3Departamento de Química, Departamento de Física, Facultad Experimental de Ciencias y Tecnología

2284792 LEAKAGE RADIATION MICROSCOPY GARCÍA C.E.1, COELLO V.M.2 1 Universidad Autónoma de Nuevo León/2Centro de Investigación Científica y Educación Superior de Ensenada, México

2284982 EVANESCENT WAVE FAR FIELD INTERFERENCE CORTÉS R., COELLO V. CICESE, Unidad Monterrey, México

2285049 DIFFERENCES IN ONE-PHOTON AND TWO-PHOTON RESONANTEMISSION-SPECTRA OF TWO FLUORESCENT DYES 11

CAN-UC B.A., RANGEL-ROJO R. Centro de Investigación Científica y de Educación Superior de Ensenada, México

2285124 NANOPARTICLE COATED OPTICAL FIBERS FOR SINGLE MICROBUBBLE GENERATION PIMENTEl-DOMÍNGUEZ R., HERNÁNDEZ-CORDERO J. Instituto de Investigaciones en Materiales, UNAM, México

2285211 OPTICAL PROPERTIES OF FULLERENES CONFINED IN ORDERED ALUMINA NANOTUBE ARRAYS ONTIVEROS-BARRERA F.G, MORALES-SAAVEDRA O.G, MATA-ZAMORA M.E., BAÑUELOS J.G, RODRIGUEZ-ROSALES A.A, ÁLVAREZ-ZAUCO E. CCADET-UNAM

2285692 EFFECTS OF B2O3 DOPING ON CRYSTALLITE PHASE AND VISIBLE UPCONVERSION EMISSION OF ZRO2: ER (1%),YB (2%) NANOCRYSTALS DIAZ-TORRES L.A.1, BORJA-URBY R1, SALAS P2, VEGA M3, ANGELES-CHAVEZ C4 1 Centro de Investigaciones en Óptica A.C./2Centro de Física Aplicada y Tecnología Avanzada, UNAM 3 Centro de Geociencias-UNAM/4Instituto Mexicano del Petróleo

2285816 PHOTO-CONTROL OF SUPRAMOLECULAR CHIRAL STRUCTURES IN AZOPOLYMER FILMS SOLANO C.1, RODRIGUEZ-GONZALEZ R.J.2, LARIOS-LOPEZ L.2, NAVARRO-RODRIGUEZ D.2, MARTINEZ-PONCE G.1 1 Centro de Investigaciones en Óptica, A. C./2Centro de Investigaciones en Química Aplicada

2285945 FOUR-WAVE MIXING IN THE DETECTION OF ELECTRON-AND HOLE-BASE HOLOGRAMS JORGE ENRIQUE RUEDA JR, LUIS ALFONSO GUERRA LG, LINA MIREYA CASTRO LC Universidad de Pamplona

2285983 NLO CHARACTERIZATION FOR NOBEL BORINATES: EVALUATION OF THE N-B BOND CASTRO-BELTRAN R.1, RODRÍGUEZ M.1, RAMOS-ORTIZ G.1, LEDOUX-RAK I.2, FARFÁN N.3, SANTILLAN R.4 1 Centro de Investigaciones en Óptica/2Ecole Normale Superieure de Cachan/3Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México/ 4Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN

2285999 EFFECT OF ULTRAVIOLET RADIATION ON POLYETHYLENE FILMS MARTÍNEZ-ROMO A.1, GONZÁLEZ-MOTA R.1, SOTO-BERNAL J.J.1, FRAUSTO-REYES C.2, ROSALES-CANDELAS I.1, ALBA-NEVARES L.L.3 1 Instituto Tecnológico de Aguascalientes/2Centro de Investigaciones en Óptica, A.C./3Instituto Tecnológico de Pabellón

2286074 WAVE PROPAGATION IN A MULTIPLE INTERFACES NANOWAVEGUIDE

12

LUIS-RAMOS A1, GÓMEZ-PAVÓN L.C.1, ROJAS-GARCÍA I1, FÉLIX-BELTRÁN O1, PARADAALFONSO R2, MARTÍ-PANAMEÑO E1 1 Benemérita Universidad Autónoma de Puebla/2Institututo Politécnico Nacional

2286107 OPTICAL SENSOR BASED ON PSI/GD2O2S:TB DEVICES HERNANDEZ-ADAME L.1, SALADO-LEZA D.E.1, MEDELLÍN-RODRÍGUEZ F.1, VEGA-CARRILLO H.R.2, PALESTINO G. 1 1 Universidad Autónoma de San Luis Potosí/ Facultad de Ciencias Químicas/ 2Universidad Autónoma de Zacatecas/b Unidad Académica de Estudios Nucleares

2286141 OPTICAL SPECTROSCOPY AND HIGH PRESSURE ON EMERALDS: SYNTHETIC AND NATURAL SÁNCHEZ-ALEJO SANCHEZAMA1, HERNÁNDEZ HERNÁNDEZAJM2, MURRIETA MURRIETASHO2, FLORES FLORESJMC2, CALDERÓN CALDERÓNGT3, CAMARILLO CAMARILLOGE2 1 Posgrado de Ciencia e Ingeniería de Materiales/2UNAM/3U.A. de Madrid

2286142 INFLUENCE OF PRECURSOR CHEMISTRY ON THE LUMINESCENT PROPERTIES OF BATIO3:ER3+ FILMS CARRILLO ROMO F. DE J., GARCÍA MURILLO A., GARCÍA HERNÁNDEZ M., GONZÁLEZ PENGUELLY B., GARRIDO HERNÁNDEZ A. Centro de Investigación e Innovación Tecnológica CIITEC-IPN

2286146 SIMPLE OPTICAL TWEEZERS SYSTEM FOR MESOSCOPIC BIOPHOTONICS MELO C.A., SOLARTE E. Grupo de Óptica Cuántica, Departamento de Física, Universidad del Valle, Cali - Colombia

2286184 IMPROVING THE RED UP-CONVERSION EMISSION OF Y2O2S:ER3+ YB3+ NANOCRYSTALS WITH AN OPTIMUM SODIUM SULFIDE CONCENTRATION. CAMPOS VILLALOBOS I.1, LÓPEZ-LUKE T.1, DE LA ROSA E.1, TORRES-CASTRO A.2, SALAS P.3 1 Centro de Investigaciones de Óptica A.C./2Universidad Autónoma de Nuevo León/3Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México

FDI

La Luz

Fabrication, Design, and Instrumentation 2283162 SINGLE POLARIZATION, YB3+-DOPED FIBRE AMPLIFIER DESIGN FOR CARS NEGRETE-GONZALEZ G.1, OFFERHAUS L.H.2, ALVAREZ-CHAVEZ J.A.1 1 CIITEC-IPN/2Optical Sciences Twente University

2283923 CALCULATION OF HIGHER ORDER DISPERSION COEFFICIENTS IN PHOTONIC CRYSTAL FIBERS MARTINEZ-RIOS A.1, ILAN B.2, TORRES-GOMEZ I.1, MONZON-HERNANDEZ D.1, CEBALLOSHERRERA D. E.1 13

1

Centro de Investigaciones en Óptica A.C./2School of Natural Sciences, University of California at Merced

2284304 MEASUREMENT OF THE REFRACTION INDEX OF A GLASS PLATE USING A POINT DIFFRACTION INTERFEROMETER (PDI) RUEDA-SORIANO E., GRANADOS-AGUSTÍN F.S., CORNEJO-RODRÍGUEZ A. Instituto Nacional de Astrofísica, Óptica y Electrónica.

2284444 ANALYSIS OF INTERFEROGRAMS OF A LENS USING A KNIFE EDGE INTERFEROMETER KORNEEV N.1, GRANADOS F.S.1, DÍAZ R.2, CORNEJO A.1 1 Instituto Nacional de Astrofísica Óptica y Electrónica/2Centro de Ciencias Aplicadas y Desarrollo Tecnológico UNAM

2284482 ASE DETECTION ON TRANSVERSAL OPTICAL FIBER WITH ERBIO DOPPING MIRELES J.R., TENTORI D. CICESE, México.

2284518ASSESSMENT OF RESIDUAL STRESS ON THIN FILMS BY LASER MICROTOPOGRAPHY COSTA M.F.M., TEIXEIRA V. Universidade do Minho.

2284572 DESIGN AND CONSTRUCTION OF A COMPACT Z-SCAN PORTABLE SYSTEM JIMÉNEZ-SALINAS M.F., ORTEGA-MARTÍNEZ R., RODRÍGUEZ-ROSALES A.A., MORALESSAAVEDRA O.G., QURESHI N. Centro de Ciencias Aplicadas y Desarrollo Tecnológico-UNAM

2285094 EXPERIMENTAL CHARACTERIZATION OF DEVIL’S VORTEXLENSES CALATAYUD A.1, REMÓN L. 1, CASANOVA C. 2, RODRIGO J.A. 3, FURLAN W.D. 2, MONSORIU J.A.1 1 Universitat Politècnica de València/2Universitat de València/3Instituto de Óptica

2284757 OBTAINING THE WAVEFRONT IN THE RONCHI TEST WITHOUT POLINOMIAL FIT OR TRAPEZOIDAL INTEGRATION AGUIRRE-AGUIRRE D., GRANADOS-AGUSTIN F. S., CORNEJO-RODRÍGUEZ A. Instituto Nacional de Astrofísica, Óptica y Electrónica

2284889 FLUORESCENT ALBUMIN HOLOGRAMS ORDÓÑEZ-PADILLA M.J, OLIVARES-PÉREZ A, BERRIEL-VALDOS L.R, MEJIAS-BRIZUELA N.Y, FUENTES-TAPIA I. INAOE

2284897 HOLOGRAPHIC COMPARATIVE STUDY OF GLUCOSE, PECTIN AND SUGAR ORDÓÑEZ-PADILLA M.J., OLIVARES-PEREZ A., BERRIEL-VALDOS L.R, FUENTES-TAPIA I. INAOE 14

2285032 DIRECTIONAL HOLOGRAPHIC GRATINGS: APPLICATION TO COLOR AND LINEAR POLARIZATION MULTIPLEXING LUGO PÉREZ L. I., RODRÍGUEZ COBOS A., RAMÍREZ FLORES G., GUEL SANDOVAL S., GUTIÉRREZ HERNÁNDEZ J. M. Instituto de investigación en Comunicación Óptica, UASLP

2285067 LASER ABLATED GLASS MICROLENS ARRAYS: ABERRATIONS DEPENDENCE ON REFLOWING TEMPERATURE J. ARINES1, D. NIETO1,2,3, M.T. FLORES-ARIAS1,2, C. GÓMEZ-REINO1,2, GERARD M. O’CONNOR3 1 Departamento de Física Aplicada (área de Óptica), Escola de Óptica e Optometría (Campus Vida), 15782 Santiago de Compostela, Spain/2Grupo de Microoptica y Optica (GRIN), Unidad Asociada al Instituto de Ciencia de Materiales de Aragón, CSIC, Zaragoza, Spain/3School of Physics, National Centre for Laser Applications, National University of Ireland, University Road, Galway, Ireland

2285169 GENERATION OF IRRADIANCE PATTERNS USING A SEMISPHERICAL IRRADIANCE METER OF TWO DEGREES OF LIBERTY TECPOYOTL-TORRES M.1, VERA-DIMAS J. G.1, ESCOBEDO-ALATORRE J. 1, SANCHEZMONDRAGON J. 2, TORRES-CISNEROS M.3, PÉREZ-CASPETA I. Y.1, VARONA J.4 1 Universidad Autónoma del Estado de Morelos/2Instituto Nacional de Astrofísica, Óptica y Electrónica 3 Universidad de Guanajuato/4Universidad Panamericana Campus Bonaterra

2285345 CHARACTERIZATION OF PLANAR WAVEGUIDES FABRICATED BY MULTIPLE SOL-GEL DIP-COATINGS REY-GARCÍA F.1, FLORES-ARIAS M.T.1, GOMEZ-REINO C.1, DE LA FUENTE X.F.2, BERNESCHI S.3, PELLI S.3, NUNZI-CONTI G.3, RIGHINI G.C.3 1 Universidade de Santiago de Compostela/2ICMA/CSIC-Universidad de Zaragoza/3Istituto di Fisica Applicata ―Nello Carrara‖

2285348SSANTA MARIA DEGLI ANGELI LUCERNARIA PRISMATIC LENSES CUEVAS S. 1,QUAGLIATA N.2,SIGISMONDI C3., CHAPA O.1 ,PEREZ F.1, TINOCO S. 1 1 Instituto de Astronomía, Universidad Nacional Autónoma de México, 2 Quagliata Studio, 3University of Roma, La Sapienza, ICRA, Dept. of Physics,

2285365 HOLOGRAMS OF ALBUMIN WITH GENTIAN VIOLET DORANTES-GARCÍA V, OLIVARES-PÉREZ A, ORDÓÑEZ-PADILLA M.J, MEJIAS-BRIZUELA N.Y. INAOE

2285500 REFRACTIVE-INDEX DISPERSION OF ABSORBING AND TURBID SOLUTIONS SANCHEZ-PEREZ C, GARCIA-VALENZUELA CCADET, UNAM

2285723 INTERFEROMETRIC ANALYSIS OF POLISHING SURFACE WITH A PETAL TOOL

15

SALAS-SANCHEZ ALFONSO J.1, LEAL-CABRERA IRCE2, PERCINO-ZACARIAS ELIZABETH1, GRANADOS-AGUSTIN FERMIN S.1 1 Instituto Nacional de Astrofísica Óptica y Electrónica/2Instituto Tecnológico Superior de Tepeaca

2285844 OPTO-MECHANICAL FABRICATION OF THE SPECTROMETER FOR THE EDIFISE PROJECT ARREDONDO-VEGA L, PEREZ-SANTOS C, POMPA-CARRERA O, RUIZ-MARQUEZ A, HURTADOORTEGA J, PAEZ G. Centro de Investigaciones en Óptica A. C. México

2285880 MEASUREMENTS OF SURFACE OPTICAL ANISOTROPIES OF SEMICONDUCTORS WITH A MULTICHANNEL SPECTROMETER NÚÑEZ-OLVERA O.F, BALDERAS-NAVARRO R.E, ORTEGA-GALLEGOS J, LASTRAS-MARTÍNEZ L.F, LASTRAS-MARTÍNEZ A. Universidad Autónoma de San Luís Potosí

2285961 DESIGN AND IMPLEMENTATION OF A PROTOTYPE MICROPOSITIONING AND FUSION OF OPTICAL FIBERS VEGA F, TORRES C.O, MATTOS L. Universidad Popular del Cesar

2286007 SELF ASSEMBLED MONOLAYER, AS OPTICAL TRANSDUCERS, USING SPIROPYRAN PHOTOCHROMIC MATERIAL ORTIZ A.1, DELGADO R.2, ROJAS M.2, LÓPEZ V.2 1 CIBA TLAXCALA/2CIBA IPN TLAXCALA

2286045 FABRICATION AND STUDY OF THE OPTICAL AND ELECTRONIC PROPERTIES OF ORGANIC THIN FILM BASED ON THE P3HT: PCBM BLEND SANCHEZ A.A, ALEMAN K, MANSUROVA S, KOSAREV A. National Institute for Astrophysics, Optics and Electronics

2286053 QUANTIFICATION OF CRITICAL PARAMETERS FOR A ROTATIONAL SHEARING INTERFEROMETER TO DETECT EXTRASOLAR PLANETS GALAN M, STROJNIK M, PAEZ G. Centro de Investigaciones en Óptica, A.C.

2286082 CHARACTERIZATION BY XDR OF AMORPHOS SICX/C-SI STRUCTURES AT HIGH TEMPERATURES IVALDO TORRES CHÁVEZ Pamplona University

2286117 OPTO-MECHANICAL CHARACTERIZATION OF A SOLAR CONCENTRATOR PROTOTYPE CRUZ –MARTÍNEZ V.M.1, SANTIAGO – ALVARADO A1, GONZÁLEZ-GARCÍA J1, CAMPOS GARCÍA M2, VÁZQUEZ – MONTIEL S3, GRANDOS-AGUSTÍN F.S.3, VÁZQUEZ MEJIA T. G.1 1 Universidad Tecnológica de la Mixteca/2Universidad Nacional Autónoma de México/3Instituto de Astrofísica, Óptica y Electrónica 16

2286121 CDSE/CDS MULTILAYER FILMS FOR OPTOELECTRONIC DEVICES LÓPEZ-RAMÍREZ L.M.1, HERNÁNDEZ-PÉREZ M.A.1, AGUILAR-HERNÁNDEZ J.R.2, VARGASGARCÍA J.R.1, CONTRERAS-PUENTE G.2 1 Escuela Superior de Ingeniería Química e Industrias Extractivas - Instituto Politécnico Nacional/2Escuela Superior de Física y Matemáticas - Instituto Politécnico Nacional

2286164 IMPROVING THE QUANTITATIVE TESTING OF FAST ASPHERICS SURFACES WITH NULL SCREENS USING DIJKSTRA ALGORITHM MORENO-OLIVA V.I.1, CAMPOS-GARCÍA M.2, DÍAZ-URIBE R.2 1 Universidad del Istmo, campus Tehuantepec/2CCADET-UNAM

POE

La Luz

Photonics and Opto-Electronics 2284148 GAUSSIAN BEAMS TO CALCULATE MULTIMODE INTERFERENCE IN WAVEGUIDES GUSTAVO RODRÍGUEZ MORALES Universidad Autónoma de Nuevo León

2284511 WAVELENGTH-SWITCHABLE FIBER LASER BASED ON TEMPERATURE-DEPENDENT TRANSMITTANCE OF A LPFG ANZUETO-SÁNCHEZ G.1, CASTRELLÓN-URIBE J.1, TORRES-GÓMEZ I. 2, MARTÍNEZ-RIOS A.2, OSUNA-GALÁN I.3 1 Centro de Investigación en Ingeniería y Ciencias Aplicadas CIICAp, Universidad Autónoma del Estado de Morelos/2Centro de Investigaciones en Óptica/3Universidad Politécnica de Chiapas

2284781 TUNABLE DUAL-WAVELENGTH FIBER LASER BASED ON ADJUSTMENT OF CAVITY LOSS BY A FIBER OPTICAL LOOP MIRROR MANUEL DURAN SANCHEZ M. D. S.1, R. IVAN ALVAREZ TAMAYO R. I. A. T.2, E. A. KUZIN E. A. KUZIN3, BALDEMAR IBARRA ESCAMILLA B. I. E.3, OLIVER POTTIEZ O. P.4 1 Universidad Tecnológica de Puebla/2Benemerita Universidad Autónoma de Puebla/3INAOE/4Centro de Investigaciones en Óptica A.C

2284977 OPTICAL CHARACTERIZATION OF LIBR-WATER USING MMI IN OPTICAL FIBER ANTUNEZ-CERON E.E.1, ESTRADA-VAZQUEZ J.A.1, BASURTO-PENSADO M.A.2, SANCHEZMONDRAGON J.J.2, GARCIA-CASTREJON J.C.1 1 Universidad Autónoma del Estado de Morelos/2Instituto Nacional de Astrofisica, Óptica y Electrónica

2285097 HIGH-VISIBILITY PHOTONIC CRYSTAL FIBER INTERFEROMETER FOR ULTRASENSITIVE REFRACTOMETRIC SENSING FERNANDO C. FÁVERO F. F.1, VITTORIA FINAZZI V. F.2, JOEL VILLATORO J. V.2, VALERIO PRUNERI V. P.2 1 Pontifical Catholic University of Rio de Janeiro/2ICFO-Institut de Ciences Fotoniques

17

2285160 VITRIFICATION OF PHOTOCURING RESINS BY EMBEDDED CANTILEVER AND FIZEAU INTERFEROMETER ARENAS G.F.1, DUCHOWICZ R.2 1 Laboratorio Láser, Facultad de Ingeniería, Universidad Nacional de Mar del Plata, Argentina/2Facultad de Ingeniería, Universidad Nacional de La Plata / Centro de Investigaciones Ópticas (CCT CONICET La PlataCIC), La Plata, Argentina

2285838 OPTICAL CHANNEL WAVEGUIDES IN ND:YVO4 CRYSTALS BY MULTI-IMPLANTS WITH PROTONS SANCHEZ-MORALES M E1, VÁZQUEZ G.V.2, RICKARDS J3, TREJO-LUNA R3 1 CUCienega Universidad de Guadalajara/2Centro de Investigaciones en Óptica A.C/3UNAM

2285867 STUDY OF LASER CHANNEL WAVEGUIDES IN ND: YAG CRYSTALS OBTAINED BY PROTON IMPLANTATION FLORES-ROMERO E.1, VAZQUEZ G.V.2, MARQUEZ H.3, LÓPEZ-URQUIETA M.A.2, RANGEL-ROJO R.3, RODRÍGUEZ-FERNÁNDEZ L.1 1 Instituto de Física, Universidad Nacional Autónoma de México/2Centro de Investigaciones en Óptica A.C/ 3 Departamento de Óptica, CICESE

2286069 METAL-GERMANIUM-METAL PHOTODETECTORS INTEGRATED WITH DIELECTRIC WAVEGUIDES CERVANTES-GONZALEZ J.C. 1, AHN D. 2, TORRES-JACOME A. 1, BANERJEE S.K.3, ZALDIVARHUERTA I.E.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Alcatel-Lucent/4University of Texas at Austin

2286073 MEASUREMENT OF GROUP VELOCITY DISPERSION IN OPTICAL FIBER WITH A HUNDREDS OF METERS LENGTHS RAMOS-BELTRÁN J, BELTRÁN-PÉREZ G, MUÑOZ-AGUIRRE S, CASTILLO-MIXCÓATL J. Benemérita Universidad Autónoma de Puebla

2286158 STUDY OF MACH-ZEHNDER MICROINTERFEROMETER PARAMETERS CORRESPON ROJAS- HERNÁNDEZ A.G, GARCIA-JUAREZ A. Universidad de Sonora

2286166 INFLUENCE OF GEOMETRY OF WAVEGUIDE ARRAYS TO GET DISCRETE SOLITONS VERGARA A, MENDOZA G, GÓMEZ L.C, MARTÍ E.A. BUAP

2285482 PLASMONIC CORE-SHELL NANOPARTICLE BASED THIN FILM SOLAR CELLS LIU F, QU D, XU Q, XIE W, HUANG Y. Tsinghua University

18

2286180 PHOTOELECTROCHEMICAL CHARACTERIZATION OF TIO2 SENSITIZED WITH CDSE QDS, AU NANOCRYSTALS AND P3OT ZARAZÚA1, E. DE LA ROSA1 T PEZ-LUKE1, S. RUIZ1, J. REYES2 1 Centro de Investigaciones en Óptica, A.P. 1-948 Leon, Gto. 37150 MÉXICO/2Facultad de Ciencias, Universidad de Colima. Colima, MÉXICO

OE

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Optical Engineering 2284978 ORGANIC SOLAR CELLS UNDER THE BHJ APPROACH USING CONVENTIONAL/INVERTED ARCHITECTURES SALINAS J.F.1, SALTO C.1, MALDONADO J.L.1, RAMOS-ORTIZ G.1, RODRIGUEZ M.1, MENESESNAVA M.A.1, BARBOSA-GARCIA O.1, FARFAN N.2, SANTILLAN R.3 1 Centro de Investigaciones en Óptica A.C./2Facultad de Química, UNAM/3Departamento de Química, CINVESTAV

2285898 SOLAR CONCENTRATOR WITH DIFFUSER SEGMENTS ESPARZA D, MORENO I. Universidad Autónoma de Zacatecas

2284114 DIGITAL SYSTEM OF INVARIANT CORRELATION TO POSITION AND SCALE USING ADAPTIVE RING MASKS AND UNIDIMENSIONAL SIGNATURES SOLORZA S.1, ÁLVAREZ-BORREGO J.2 1 Universidad Autónoma de Baja California/2Centro de Investigación Científica y de Educación de Ensenada

2284313 RELATIVE ENTROPY OF IMAGES DEGRADED BY BITQUANTIZATION AND NOISE GONZALO URCID INAOE

2284371 INVARIANT CORRELATION TO POSITION, ROTATION AND SCALE USING ONE-DIMENSIONAL COMPOSITE FILTERS ÁLVAREZ-BORREGO J, CHAPARRO GILDARDO C.G. CICESE.

2284630 OPTICAL-DIGITAL RESTORATION OF OUT-OF-FOCUS COLOR IMAGES DETECTED IN MICROSCOPY ORTIZ-SOSA R, BERRIEL-VALDOS L.R, AGUILAR J.F, ORLANDO GUERRERO I.J, MEJÍA ROMERO S. INAOE

2284892 TOMATO CLASSIFICATION BASED ON LASER METROLOGY AND COMPUTER ALGORITHMS IGNO-ROSARIO O., MUÑOZ-RODRIGUEZ J.A. Centro de Investigaciones en Optica, A. C. 19

2285061 REAL-TIME VIDEOENDOSCOPIC DISTORTION CORRECTION USING A GRAPHICS PROCESSING UNIT. VAN DER JEUGHT S, BUYTAERT J.A.N, DIRCKX J.J.J. University of Antwerp

2285264 MODULATED SPECKLE PATTERNS FOR VORTEX METROLOGY ANGEL-TORO L, SIERRA-SOSA D.E. Universidad EAFIT

2285266 COMPARATIVE ANALYSIS OF DIRECTIONAL FILTERING TECHNIQUES IN FRINGE PATTERNS ESCALANTE N, VILLA J, GONZÁLEZ E, ARAIZA M. Universidad Autónoma de Zacatecas

2285297 TOPOMETRY AND REAL COLOR ASOCIATION BY RGB FRINGE PROJECTION TECHNIQUE LÓPEZ Y.Y.1, MARTÍNEZ A21, RAYAS J.A.1, GENOVESE K.2 1 Centro de Investigaciones en Óptica, A. C/2Dipartimento di Ingegneria e Fisica dell‘Ambiente, Università degli Studi della Basilicata.

2285497 RETRIEVAL SPECTROSCOPIC INFORMATION OF ASTRONOMICAL PLATES FROM TONANTZINTLA SCHMIDT CAMERA DÍAZ-HERNÁNDEZ R.1, COSTERO GRACIA R2, GONZÁLEZ GONZÁLEZ J.J.2, GUICHARD J.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Instituto de Astronomía, Universidad Nacional Autónoma de México

2285875 REAL-TIME NUMERICAL RECONSTRUCTION OF DIGITALLY RECORDED HOLOGRAMS TRUJILLO C, RESTREPO J, GARCIA-SUCERQUIA J. Universidad Nacional de Colombia Sede Medellín

2285981 SPECTRAL CHARACTERIZATION OF THE PROCESS OF OPTICAL FIBER FUSION VEGA F, TORRES C.O, MATTOS L. Universidad Popular del Cesar

IAPD

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Information Acquisition, Processing and Display 2284470 OPTICAL SYSTEM FOR THE SUPERVISION OF THE OPERATION OF AN INDUCTION MOTOR VILLANUEVA-REYES V. M, VAZQUEZ-NAVA R. A. Centro de Investigaciones en Óptica A. C.

2284762 MINERAL SPECIES TO REMOVAL CONTAMINANTS: CHARACTERIZATION TROUGH DYNAMIC SPECKLE TECHNIQUES 20

GONZÁLEZ M.J.1, BERTOLINI G.2, CABELLO C.I.2, BOTTO I.L. 3, ARIZAGA R.A.4, TRIVI M. 4 1 Centro de Química Inorgánica (CONICET La Plata-UNLP), Calle 47 y 115 and Instituto de Recursos Minerales (CIC-UNLP), Calle 64 y 120 (1900) La Plata, Argentina. .3Centro de Química Inorgánica (CONICET La Plata-UNLP), Calle 47 y 115, (1900) La Plata, Argentina. 4 Centro de Investigaciones Opticas (CONICET La Plata - CIC) and UID Optimo, Dpto. Ciencias Básicas, Facultad de Ingeniería, Universidad Nacional de La Plata, Casilla de Correo 3, (1897) Gonnet, La Plata, Argentina

2285130 QUANTITATIVE ANALYSIS OF METFORMIN TABLETS BY LASERINDUCED BREAKDOWN * SPECTROSCOPY CONTRERAS U.1, ORNELAS-SOTO N.1, MENESES-NAVA M. A.1, BARBOSA-GARCÍA O.1, LÓPEZDE-ALBA P. L.2, LÓPEZ-MARTÍNEZ L.6 1 Centro de Investigaciones en Óptica A. C./2Universidad de Guanajuato6

2285505 SERS FOR THE DETERMINATION OF ESSENTIAL OILS COMPOSITION MEDINA-RAMÍREZ I.E.1, FRAUSTO-REYES C2, GONZÁLEZ-DÍAZ M.C.1 1 Universidad Autónoma de Aguascalientes/2Centro de Investigaciones en Óptica A.C.

2285729 OPTICAL EMISSION SPECTROSCOPY AS MONITOR OF INHOMOGENEOUS FILM GROWTH ABUNDIZ N.1, PÉREZ A.2, GARCIA V.3, MACHORRO R.3 1 Centro de Investigación Científica y de Educación Superior de Ensenada/2Universidad Autónoma de Baja California/3Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología

2285907 VARIABLE FOCUSING INTEGRAL IMAGING SYSTEMS TOLOSA A.1, PONS A.2, NAVARRO H.2, SAAVEDRA G.2, MARTINEZ-CORRAL M.2, MARTINEZCUENCA R.3, JAVIDI B.4 1 AIDO/2University of Valencia/3Universitat Jaume I/4University of Connecticut

2286012 APPLICATION OF SPECKLE INTERFEROMETRY FOR SENSING HEAT TRANSMISSION IN ECOLOGICAL BUILDINGS TUN-EK E.A.1, BACELIS-JIMENEZ A.A.1, PÉREZ-CORTÉS M.1, ORDOÑEZ-LÓPEZ E.1, ORTÍZGUTIÉRREZ M.2 1 Universidad Autónoma de Yucatán/2Universidad Michoacana de San Nicolás de Hidalgo.

2286024 FLICKER REDUCTION IN AN LCOS SPATIAL LIGHT MODULATOR GARCÍA-MÁRQUEZ J.1, GONZALEZ-VEGA A.2, LÓPEZ-PADILLA V. E.3, NOÉ-ARIAS E.1 1 Centro de Investigaciones en Óptica/2Universidad de Guanajuato/3LP Consulting

2286150 MONITORING THE RADIATION OF LINEAL ACCELERATOR USING SCINTILLATOR POLYMER GUZMÁN-GATICA L, PALOMINO-MERINO R, MORENO-BARBOSA E., MARTÍNEZ-BRAVO O. Benemérita Universidad Autónoma de Puebla

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Bio-Medical Optics 21

2284393 A COMPARATIVE THEORETICAL-EXPERIMENTAL ANALYSIS OF A VIDEO REFLECTOMETRY SETUP CUNILL M.1, DELGADO ATENCIO J.A.1, VÁZQUEZ Y MONTIEL S.1, MORALES CRUZADO B.1, PRAHL S.A.2, CASTRO RAMOS J.1 1 INAOE/2Oregon Medical Laser Center.

2284605 DIFFUSE REFLECTION SPECTROSCOPY OF BREAST ADIPOSE TISSUE VS HISTOLOGICAL GRADE MUNOZ MORALES A.A1, VAZQUEZ Y MONTIEL S.2, REIGOSA A.3 1 Grupo de Instrumentación de Óptica Biomédica, Coordinación de Óptica, Instituto Nacional de Astrofísica Óptica y Electrónica / Laboratorio de Espectroscopía Óptica de Superficies, Grupo de Instrumentación y Óptica, Departamento de Física, Facultad Experimental de Ciencias y Tecnología/2Grupo de Instrumentación de Óptica Biomédica, Coordinación de Óptica, Instituto Nacional de Astrofísica Óptica y Electrónica 3 Laboratorio de Ultraestructura, Centro de Investigaciones Médica y Biotecnológica de la Universidad de Carabobo, Valencia, Venezuela

2284683 LASER VIBROMETRY FOR MEASUREMENT OF NON-LINEARITIES IN TIME VARIANT VIBRATIONS AERTS J.R.M.1, DE GREEF D.1, DIRCKX J.J.J.2 1 University of Antwerp/2Univerity of Brussels

2284557 GASTRIC MUCOSA ANALYSIS USING SPECKLE PATTERNS: A MEDICAL DIAGNOSIS ALTERNATIVE ANDRADE-ERASO C.A.1, PATIÑO-VELASCO M.M.1, VASQUEZ-LOPEZ J.A.2, LEON-TELLEZ J.1, BRAVO L.E.3, RABAL H.J.4, TRIVI M4 1 Grupo de Óptica y Laser, Departamento de Física, Universidad del Cauca. Carrera 5#4-70. , Popayán, Colombia/2Docente Asociado Departamento Morfología, Facultad de Ciencias de la Salud, Universidad del Cauca, Popayán, Colombia/3Grupo de Registro Poblacional de Cáncer de Cali, Universidad del Valle, Sede San Fernando, Cali, Colombia/4Centro de Investigaciones Ópticas (CONICET La Plata - CIC) and UID Optimo, Dpto. Ciencias Básicas, Facultad de Ingeniería, Universidad Nacional de La Plata, Casilla de Correo 3, 1897 Gonnet- La Plata, Argentina

2284872 STUDY OF INHOMOGENEITIES IN TURBID MEDIA. EXPERIMENTAL AND NUMERICAL RESULTS CARBONE N.A.1, DI ROCCO H.O.2, IRIARTE D.I.2, PARDINI P.1, POMARICO J.A.2, RANEASANDOVAL H.F.2, WAKS- SERRA M.V.1 1 UNCPBA - Tandil – Argentina/2UNCPBA and CONICET- Tandil - Argentina

2285109 OPTOMECHATRONIC PROTOTYPE BASED ON DIGITAL HOLOGRAPHIC INTERFEROMETRY AIMED TO THE STUDY OF BIOLOGICAL TISSUES ALCARAZ A, HERNÁNDEZ M.S, MENDOZA F, MUÑOZ S. Centro de Investigaciones en Óptica A.C.

2285503 RESOLUTION STUDY OF IMAGING IN NANOPARTICLE OPTICAL PHANTOMS ORTIZ-RASCÓN E, BRUCE N.C, FLORES-FLORES J.O, SATO-BERRU R.Y. Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México 22

2285638 SPECTRA ACQUISITION SOFTWARE FOR CLINICAL APPLICATIONS OF THE USB4000 SPECTROMETER MARTÍNEZ RODRÍGUEZ A.E, VÁZQUEZ Y MONTIEL S, DELGADO ATENCIO J.A, GORDIANO ALVARADO G. Instituto Nacional de Astrofísica Óptica y Electrónica

2284925 SPECTRAL REFLECTANCE VARIATIONS IN TWO MAIZE HIBRIDS AS RESPONSE TO ABIOTIC STRESS WEBER CH1, ACCIARESI H.A.2, RODRIGUEZ E.J.3, ANTONIETTA M3, GUIAMET J.J.4, TOCHO J.O.3 1 Comisión de Investigaciones Científicas, Centro de Inv. Ópticas/2Facultad de Ciencias Agrarias y Forestales UNLP, Comisión de Investigaciones Científicas/3Consejo de Investigaciones Científicas y Tecnológicas CONICET/4Comisión de Investigaciones Científicas

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Theoretical Optics 2285370 ANALYTICAL DESCRIPTION OF BAND GAPS IN A TERNARY METALLO-DIELECTRIC STACK ALEJO-MOLINA A.1, SÁNCHEZ-MONDRAGÓN J.J.1, ZAMUDIO-LARA A.2, ROMERO-ANTEQUERA D.L.1, TORRES-CISNEROS M.3, CEBALLOS-HERRERA D.E.1 1 INAOE/2UAEM, CIICAp/3UG, FIMEE

2285395 ON NON-PLANAR RADON TRANSFORMS FOR WEAKLY ABSORBING MEDIA JURADO-TARACENA M.G, GUTIÉRREZ-VEGA J.C. Tecnológico de Monterrey

2285407 SCATTERED ELECTROMAGNETIC FIELD PRODUCED BY A DIELECTRIC NANO-SPHERE OVER A PLANE INTERFACE BETWEEN TWO DIELECTRIC MEDIA GUEL-TAPIA J.A.1, VILLA-VILLA F.1, MENDOZA-SUÁREZ A.2, PÉREZ-AGUILAR H.2 1 Centro de Investigaciones en Óptica (CIO)/2Facultad de Ciencias Físico-Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo

2285524 PHOTONIC CRYSTAL SLAB WITH LAYERED ELEMENTS ROMERO-ANTEQUERA D.A.1, ALEJO-MOLINA A.1, SÁNCHEZ-MONDRAGÓN J.J.1, LÓPEZGALMICHE G.1, MAY-ARRIOJA D.A.2, GUIZAR-ITURBIDE I.1 1 INAOE/2UAT

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Vision and Colour

23

2284382 SIMPLE PERCEPTUAL COLOR SPACE FOR COLOR SPECIFICATION AND REAL-TIME PROCESSING KOTSARENKO Y., RAMOS F.Q. ITESM, Campus Cuernavaca

2284814 PSYCHOPHYSICS OF THE HUE TEST CARRANZA J.1, CERVANTES P.R.2 1 INAOE/2UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO

2285897 ASSESSING INVISIBILITY IVÁN MORENO Universidad Autónoma de Zacatecas

2286008 AN ILLUMINATION-INVARIANT NOVEL COLOUR CONSTANCY ALGORITHM TORRES-MÉNDEZ L.A., OLAYA-BENÍTEZ E.J. CINVESTAV Unidad Saltillo

Tuesday 16 8:30-10:00

ICO Awards Session

El Alto

Chair: Maria L. Calvo, UCM, Spain 8:30-9:15 2286194 ICO PRIZE 2010 AND ABBE´s LECTURE THE WORLD OF ATTOSECONDS – WHERE A SECOND LASTS AS LONG AS THE AGE OF THE UNIVERSE REINHARD KIENBERGER Technische Universität München, Germany 9:15- 10:00 2286203 ICO GALILEO GALILEI AWARD 2010 MIRAGE IS THE IMAGE OF AN OBJECT IN THE FLAT GROUND SURFACE MOHMMAD T. TAVASSOLY University of Tehran

10:15-11:45

FDI 3

Angelópolis

Fabrication, Design and Instrumentation Chair: Philip H. Stahl, NASA,USA Co-Chair: Esperanza Carrasco, INAOE, México 24

10:15-10:45 2283842 FDI3 Invited Keynote| OFF-AXIS PARABOLIC OPTICAL RELAYS: ALMOST PERFECT IMAGING HOLDSWORTH J.L.1, SHARAFUTDINOVA G.1, SANDERSON M.J.2, VANHELDEN D.F.1 1 Universiy of Newcastle/2University of Massachusetts

10:45-11:00 2284030 FDI3 Oral METHODOLOGY FOR THE ASTIGMATISM COMPENSATION IN OFF-AXIS SPHERICAL REFLECTIVE SYSTEMS GÓMEZ VIEYRA A.1, MALACARA-HERNÁNDEZ D.2 1 Universidad Autónoma Metropolitana, Unidad Azcapotzalco/2Centro de Investigaciones en Óptica A.C.

11:00-11:15 2284859 FDI3 Oral OPTICAL SYSTEMS AND ALGORITHMS FOR PHASE-SPACE TOMOGRAPHY OF ONE- AND TWO- DIMENSIONAL BEAMS CÁMARA A.1, ALIEVA T.1, RODRIGO J.A.2, CALVO M.L.1 1 Universidad Complutense de Madrid 2 Instituto de Óptica, CSIC.

11:15-11:30 2285906 FDI3 Oral THROUGH-FOCUS PERFORMANCE OF MULTIFOCAL INTRAOCULAR LENSES REMÓN L.1, CASANOVA C.2, CALATAYUD A. 1, PONS A. 2, MONSORIU J. A. 1, FURLAN W.D. 21 Universitat Politécnica de Valencia/2Universitat de Valencia

11:30-11:45 2285163 FDI3 Oral HOLOGRAPHIC SENSORS BASED ON ZEOLITE DOPED TRANSMISSION AND REFLECTION HOLOGRAMS RECORDED IN PHOTOPOLYMERISABLE NANOCOMPOSITES MCFADDEN M1, LEITE E1, MARTIN S1, TOAL V1, MINTOVA S2, NAYDENOVA I1 1 Dublin Institute of Technology/2ENSICAEN - Université de Caen – CNRS

12:00-13:30

FDI 4

Angelópolis

Fabrication, Design and Instrumentation Chair: John Holdsworth, University of Newcastle, Australia Co-Chair: Francisco Renero, INAOE, México 12:00-12:30 25

2285210 FDI4 Invited Keynote COST MODELING FOR SPACE TELESCOPES STAHL H.P.1, HENRICHS T.2 1 NASA/2MTSU

12:30-12:45 2284336 FDI4 Oral DESIGN OF COMPACT MULTIBAND SATELLITE IMAGER USING COMPLEX MATHEMATICAL MODEL MAKAROV A.L.1, VARICHENKO L.V.2, LYKHOLIT N.I.3, HRYNYUK I.E.3, TIAGUR V.M.3, TKACHENKO V.F.4, KURDYDYK R.V.4 1 Yuznoye Design Office/2State Scientific Research Enterprise "CONECS"/3State Scientific Special Device Prodaction "ARSENAL"/4Lviv Polytechnic National University

12:45-13:00 2285060 FDI4 Oral SLICED PUPIL GRATING GARCIA-VARGAS M.L.1, SÁNCHEZ-BLANCO E.1, GALLEGO J.2, GIL DE PAZ A.2, CARRASCO E.3, PÉREZ A.1, MALDONADO M.1, ZAMORANO J.2 1 FRACTAL SLNE/2Universidad Complutense de Madrid, UCM/3INAOE

13:00-13:15 2285381 FDI4 Oral OPITCAL DESIGN FOR MEGARA: A MULTI-OBJECT SPECTROGRAPH FOR THE GTC CARRASCO E.1, SÁNCHEZ-BLANCO E.2, GARCÍA-VARGAS M.L.2, GIL DE PAZ A.3, GALLEGO J. 3, PÁEZ G.4, ZAMORANO J. 3, CASTRO J. 1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE)/ 2FRACTAL SLNE/3Universidad Complutense de Madrid (UCM)/4Centro de Investigaciones en Óptica A.C

13:15-13:30 2286174 FDI4 Oral WAVELENGTH MEASUREMENT WITH ITERATIVE SELF-IMAGING PHENOMENON MATTEUCCI G1, GARCIA SUCERQUIA J2 1 University of Bologna/2Universidad Nacional de Colombia Sede Medellin

10:15-11:45

OE 3

Violeta 1

Optical Engineering Chair: Marija Strojnik, CIO, Mexico Co-Chair: M.T. Tavassoly, University of Tehran 10:15-10:45 2284626 OE3 Invited Keynote 26

PARALLEL APPROACH TO MEMS AND MICRO-OPTICS INTERFEROMETRIC TESTING KUJAWINSKA M.1, BEER S.2, GASTINGER K.3, GORECKI C.4, HAUGHOLT K.H.5, LAMBELET P.6, PARIS R.7, ZEITNER U.8 1 Warsaw University of Technology/2CSEM SA/3Norwegian University of Science and Technology/4FEMTOST/5SINTEF ICT/6Heliotis AG/7IMMS/8Fraunhofer IOF

10:45-11:00 2285087 OE3 Oral INFLUENCE OF V-SHAPED GROOVE PROFILE DISTORTIONS ON HETERODYNE MICROSCOPE RESPONSE AKHMEDZHANOV I.M., BARANOV D.V., ZOLOTOV E.M. Prokhorov General Physics Institute of Russian Academy of Sciences

11:00-11:15 2285716 OE3 Oral ANALYSIS OF CRACKS AND DAMAGES IN OPTICAL ELEMENTS BY A SWEPT-SOURCE OPTICAL COHERENCE TOMOGRAPHY TECHNIQUE MUÑOZ G., ALCALÁ N. Centro de Investigaciones en Óptica, A.C

11:15-11:30 2285889 OE3 Oral DIGITAL HOLOGRAPHY SYSTEM FOR TOPOGRAPHY MEASUREMENT AMÉZQUITA R.1, RINCÓN O.2, TORRES Y.M.2, AMÉZQUITA S.1 1 Universidad Nacional de Colombia sede Bogotá, Combustión Ingenieros Ltda/ 2Combustión Ingenieros Ltda

11:30-11:45 2285969 OE3 Oral MICROMETRIC MEASUREMENT OF INDUCED EFFORTS TERMALLY USING DIGITAL HOLOGRAPHIC INTERFEROMETRY MONROY F.A.M.1, GARCÍA J.I.G.S.2 1 Universidad Nacional de Colombia – Bogotá/2Universidad Nacional de Colombia - Medellín

12:00-13:30

OE 4

Violeta 1

Optical Engineering Chair: Malgorzata Kujawinska, Warsaw University of Technology, Poland Co-Chair: Manuel de la Torre, CIO, México 12:00-12:30 2285572 OE4 Invited Keynote NEAR IR DIODES AS ILLUMINATION SOURCES TO DETERMINE REMOTELY-INVISIBLE-IMAGES ON CENTURY-OLD PAINTINGS STROJNIK M, PAEZ G, ORTEGA A. 27

Centro de Investigaciones en Óptica A.C

12:30-12:45 2284038 OE4 Oral ASSIGNING PSEUDODOLOR TO 3-D DATA ARRAYS CHRISTIAN LÓPEZ ALARCÓN C.L.A, JOSÉ JAVIER BÁEZ ROJAS J.J.B.R. Instituto Nacional de Astrofísica Óptica y Electrónica

12:45-13:00 2285154 OE4 Oral EFFECT OF THE SPECKLE´S SIZE IN LASER SPECKLE IMAGING FOR BLOOD FLOW MEASUREMENT MENDEZ-AGUILAR E.M.1, FUENTES-GARCÍA A1, SALAZAR-HERMENEGILDO N1, RAMOSGARCÍA R1, CHOI B2, RAMIREZ-SAN-JUAN J.C.1 1 INAOE/2University of California

13:00-13:15 2285557 OE4 Oral OPTICAL AND MECHANICAL NONDESTRUCTIVE TESTS FOR MEASURING TOMATO FRUIT FIRMNESS MANIVEL-CHÁVEZ R.A, GARNICA-ROMO M.G, ARROYO-CORREA G, ARANDA-SÁNCHEZ J.I Universidad Michoacana de San Nicolás de Hidalgo

13:15-13:30 2285736 OE4 Oral STUDY OF THERMAL PROPERTIES OF METALLIC SAMPLES AZ91E/ALN CRUZ MANDUJANO JAVIER 1, EGBERTO BEDOLLA BECERRIL 2, VILLAFAÑA RAUDA EDGAR 3 1 Universidad Michoacana de San Nicolás de Hidalgo, Dpto. de Ciencias Básicas y Matemáticas, Facultad de Ingeniería Civil/2Instituto de Investigaciones Metalúrgicas de la Universidad Michoacana de San Nicolás de Hidalgo/3Universidad de Guadalajara, Centro Universitario de Los Lagos, Dpto. Ciencias Exactas y Tecnología

10:15-11:45

OIS 3

Constancia

Optical Interaction Science Chair: Eric Van Stryland, CREOL, USA Co-Chair: Erwin Marti-Panameño, BUAP, México 10:15-10:45 2285923 OIS3 Invited Keynote LOOKING AT THE MULTI-FREQUENCY RAMAN GENERATED SPECTRA STRICKLAND D.1, TURNER F.C.1, CHATURVEDI M.2, CUI Z.1, TIAN B.1, ACKERT J.1 1 University of Waterloo/2IIT Bombay

10:45-11:00 28

2284509 OIS3 Oral NONLINEARITY ENHANCEMENT IN RUBIDIUM VAPOR WITH VECTORIAL MECHANISMS NIKOLAI KORNEEV Instituto Nacional de Astrofísica, Óptica y Electrónica

11:00-11:15 2284712 OIS3 Oral TWO-PHOTON LASER MICROSCOPY USING NANOPARTICLES OF FLUORENE MONOMERS AS MARKERS APARICIO IXTA L.1, RAMOS ORTIZ G.1, PICHARDO MOLINA J. L. 1, MALDONADO J. L. 1, RODRIGUEZ M.1, ZOLOTUKHIN M. G.2, TELLEZ LOPEZ V. M.3, DANIEL MARTINEZ-FONG 3 1 Centro de Investigaciones en Óptica A.C./2Universidad Nacional Autónoma de México/3CINVESTAV

11:15-11:30 2284960 OIS3 Oral CORONA POLING ASSISTED SECOND HARMONIC GENERATION IN NANOSTRUCTURED POLYMETHYLMETACRYLATE FILMS FRANCO A1, TORRES-MENDIETA R2, GARCÍA-MACEDO J.A.1 1 Departamento de Estado Sólido, Instituto de Física, Universidad Nacional Autónoma de México/ 2Facultad de Ciencias, Universidad Nacional Autónoma de México

11:30-11:45 2286020 OIS3 Oral SPECTROSCOPIC CHARACTERIZATION OF WATERCOLOR PAPER PHOTODEGRADATION MENDOZA-ALEMAN M.G.1, GONZALEZ-MOTA R.1, SOTO-BERNAL J.J.1, FRAUSTO-REYES C.2, ROSALES-CANDELAS I.1, MORÁN-CHÁVEZ C.M.1 1 Instituto Tecnológico de Aguascalientes/2Centro de Investigaciones en Óptica, A.C.

12:00-13:30

OIS 4

Constancia

Optical Interaction Science Chair: Donna Strickland, University of Waterloo, Canada Co-Chair: Alexis Mendez, MCH Engineering, USA 12:00-12:30 2284550 OIS4 Invited Keynote EXTREME NONDEGENERATE TWO-PHOTON ABSORPTION VAN STRYLAND E.W., CIRLOGANU C.M., PADILHA L.A., FISHMAN D., WEBSTER University of Central Florida

12:30-12:45 2284340 OIS4 Oral MODEL FOR COHERENCE TRANSFER IN A BACKWARD OPTICAL PARAMETRIC OSCILLATOR 29

MONTES C.1, ASCHIERI P.1, PICOZZI A.2 1 LPMC-CNRS, Université de Nice-Sophia Antipolis, Parc Valrose, F-06108 Nice, France/2Institut Carnot de Bourgogne, F-21078 Dijon Cedex, France

12:45-13:00 2285947 OIS4 Oral DISCRIMINATING THIN FILM VERSUS SUBSTRATE CONTRIBUTIONS IN ZSCAN MEASUREMENTS EVANS C.C.1, BARRANCO CRUZ J.D.2, BRADLEY J.D.B.1, GÓMEZ PAVÓN L.C.2, MAZUR E.1, MARTÍ-PANAMEÑO E.A.2 1 Harvard University/2Benemérita Universidad Autónoma de Puebla

13:00-13:15 2286224 OIS4 Oral NLO-PROPERTIES OF AU- AND AG-NANOPARTICLES DISPERSED IN SILICA SONOGEL FILMS MORALES-SAAVEDRA O.G, TORRES-ZUÑIGA V, RODRIGUEZ-ROSALES A.A, ZANELLA R. CCADET-UNAM

13:15-13:30 2285980 OIS4 Oral SELF-FOCUSING MECHANISM IN NEMATIC LIQUID CRYSTALS WITH SUBMILLISECOND RESPONSE PORRAS-AGUILAR R, BEECKMAN J, NEYTS K. Ghent University

10:15-11:45

POE 2

Oriental

Photonics and Opto-Electronics Chair: Diana Tentori, CICESE, Mexico Co-Chair: Felix Aguilar, INAOE, México 10:15-10:45 2285159 POE2 Invited Keynote ON THE INFLUENCE OF THE EXCITED STATE MIGRATION ON THE POPULATION GRATINGS AMPLITUDE RECORDED IN THE TRANSIENT TWO WAVE MIXING CONFIGURATION IN ER-DOPED OPTICAL FIBERS HERNÁNDEZ-HERNÁNDEZ E, MARTÍNEZ-MARTÍNEZ L.O, STEPANOV S. Centro de Investigación Científica y de Educación Superior de Ensenada

10:45-11:00 2284574 POE2 Oral INVESTIGATION OF REFRACTIVE INDEX DISTRIBUTION IN DIFFERENT PHOTONIC CRYSTAL FIBER ELEMENTS JAROSZEWICZ L.R.1, KUJAWINSKA M.2, STASIEWICZ K.1, MARC P.1 30

1

Military University of Technology/2Warsaw University of Technology

11:00-11:15 2285796 POE2 Oral MEASUREMENT OF GASOLINE ADULTERATION USING OPTICAL FIBER SENSOR DIAZ M. D.M.1, TORRES M. T.M.2, MATTOS V. M.V.2 1 Universidad Popular del Cesar/2Grupo LOI Universidad Popular del Cesar

11:15-11:30 2284664 POE2 Oral A SIMPLE THEORETICAL METHOD FOR ERBIUM DOPED PCF RING LASERS DESIGN SÁNCHEZ-MARTÍN J.A.1, ÁLVAREZ J.M.1, REBOLLEDO M.A., ANDRÉS M.V.2, VALLÉS J.A.1, MARTÍN J.C.1, BERDEJO V.1, DÍEZ A.1 1 Universidad de Zaragoza/2Universidad de Valencia

11:30-11:45 2284830 POE2 Oral POLARIZED LIGHT PROPAGATION ALONG A HELICAL TRAJECTORY BOLSHAKOV M.V, GUSEVA A.V, KUNDIKOVA N.D, SAMKOVA E.S. Nonlinear Optics Laboratory, Institute of Electrophysics, South Ural State University

12:00-13:30

POE 3

Oriental

Photonics and Opto-Electronics Chair: Leszek R. Jaroszewicz, Military University of Technology, Poland Co-Chair: Yasuhiko Arakawa, The University of Tokyo, Japan. 12:00-12:30 2284528 POE3 Invited Keynote TWIST INDUCED BIREFRINGENCE IN HEXAGONAL PHOTONIC FIBERS TENTORI D1, GARCIA-WEIDNER A1, TORRES-GOMEZ I2 1 CICESE/Física Aplicada-Óptica/ 2Centro de Investigaciones en Óptica A.C.

12:30-12:45 2284666 POE3 Oral STUDY OF UPCONVERSION IN PCFS WITH HIGH ERBIUM CONCENTRATION BERDEJO V.1, VALLES J.A.1, REBOLLEDO M.A.1, DIEZ A.2, MARTIN J.C.1, SANCHEZ-MARTIN J.A.1, ALVAREZ J.M.1, ANDRES M.V.1 1 Department of Applied Physics - University of Zaragoza/2Department of Applied Physics and Electromagnetism - University of Valencia

12:45-13:00 31

2285922 POE3 Oral AN ANALYTICAL ANALYSIS OF THE NONLINEAR MODES OF SILICON WAVEGUIDES LOZANO-CRISOSTOMO N.1, SANCHEZ-MONDRAGON J.J.2, VAZQUEZ-GUARDADO A.2, LOPEZGALMICHE G.2, FUENTES-FUENTES M.A.2, MAGAÑA-LOAIZA O.S.3, ESCOBEDO-ALATORRE J.2 1 The Institute of Optics, University of Rochester/2Instituto Nacional de Astrofisica, Óptica y Electrónica/3Department of Physics and Astronomy, University of Rochester

13:00-13:15 2285984 POE3 Oral NEW FEATURES OF THE NONLINEAR OPTICAL PULSES ENERGY AMARO DE FARIA A.C, CASTELLANO DE VASCONCELLOS L, OSNY DE TOLEDO A. IEAv

13:15-13:30 2286144 POE3 Oral PLASMON EXCITATION USING A DIELECTRIC SLAB WITH DIFFUSIONTYPE PHOTOREFRACTIVE NONLINEARITY SANCHEZ-MONDRAGON J.1, CEBALLOS-HERRERA D. E.1, ALEJO-MOLINA A.1, MAY-ARRIOJA D.2, MAGAÑA-LOAISA O. S.3, LOZANO-CRISOSTOMO N.3 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Universidad de Tamaulipas/3Universidad de Rochester

10:15-11:45

VC 1

Violeta 2

Vision and Colour Chair: Jazmín Carranza, INAOE, México Co-Chair: J. Oracio C. Barbosa García, CIO, México. 10:15-10:45 2286013 VC1 Invited Keynote LINKING OPTICS, STRUCTURE AND VISUAL FUNCTION USING QUANTITATIVE IMAGING TECHNOLOGY SUSANA MARCOS Instituto de Óptica, Consejo Superior de Investigaciones Científicas, Spain

10:45-11:00 2284961 VC1 Oral OBJECTIVE PERFORMANCE OF A SET OF UNCORRECTED 20/20 NORMAL EYES: CLINICAL REFERENCE. TEPICHÍN E, LÓPEZ-OLAZAGASTI E, SÁNCHEZ-DE-LA-LLAVE D, CRUZ FÉLIX A. S, RAMÍREZZAVALETA G., IBARRA-GALITZIA J. Instituto Nacional de Astrofísica, Óptica y Electrónica

11:00-11:15 32

2285068 VC1 Oral CALIBRATION OF A MULTISPECTRAL CAMERA SYSTEM USING INTERFERENCE FILTERS NISHI S.N, TOMINAGA S.T. 1 Osaka Electro-Communication University/2Chiba University

11:15-11:30 2285145 VC1 Oral REGISTRATION OF SCANNING OPHTHALMOSCOPE IMAGES USING 1-D DEFORMATION FIELDS FAISAN S.1, LARA D.2, PATERSON C.2 1 University of Strasbourg, CNRS/2Imperial College London

11:30-11:45 2285166 VC1 Oral WAVELET-MULTIFRACTAL APPLIED TO DETECT GREENING DISEASES BY FLUORESCENCE IMAGING JORGE L.A.C.1, SILVA D.C.P.2, POSADAS A.3, RODA V.O.2, MILORI D.M.B.P.1, PAIVA M.S.V.2 1 Embrapa Instrumentation/2University of São Paulo/3CGIAR

12:00-13:30

TO 2

Violeta 2

Theoretical Optics Chair: Sabino Chávez, INAOE, México Co-Chair: Tatiana Alieva, Universidad Complutense de Madrid 12:00-12:30 2283985 TO2 Invited Keynote FINITE OPTICAL HAMILTONIAN SYSTEMS WOLF K.B.1, ATAKISHIYEV N.M.2, VICENT L.E.3, KRöTZSCH G.2, RUEDA-PAZ J.4 1 Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México/2UNAM/3CICATA-IPN Unidad Altamira, Instituto Politécnico Nacional/4Facultad de Ciencias, Universidad Autónoma del Estado de Morelos

12:30-12:45 2284612 TO2 Oral MIE SCATTERING OF HIGH NUMERICAL APERTURE FIELDS NICOLE MOORE ,MIGUEL A. ALONSO Department of Physics, The College of Wooster, Wooster, Ohio, USA./The Institute of Optics, University of Rochester, Rochester, New York, USA

12:45-13:00 2284687 TO2 Oral VECTOR-ELECTROMAGNETIC SCATTERING FROM METAL SURFACES USING THE INFINITE-SLOPE KIRCHHOFF APPROXIMATION NEIL C. BRUCE 33

CCADET. Universidad Nacional Autónoma de México

13:00-13:15 2284793 TO2 Oral GENERALIZED PHASE SPACE REPRESENTATIONS IN CLASSICAL OPTICS ALONSO M.A.1, PETRUCCELLI J.C.2, CHO S.K.3 1 University of Rochester/2Massachusetts Institute of Technology/3University of Rochester

13:15-13:30 2285904 TO2 Oral TRANSVERSE ENERGY FLUX CALCULATION IN OPTICAL VORTICES BY SINGLE-SLIT DIFFRACTION TERBORG R.A, VOLKE-SEPÚLVEDA K. Instituto de Física, UNAM

Wednesday 9:00-10:00

Plenary 3

El Alto

Chair: Sergio Vázquez, INAOE, México 2286193 DIAGNOSTICS AND TREATMENT OF TUMOURS USING LASER TECHNIQUES KATARINA SVANBERG Department of Oncology, Lund University Hospital, and Lund University Medical Laser Centre Lund University, SPIE President 10:15-11:45

POE 4

Oriental

Photonics and Opto-Electronics Chair: Laureano A. Bulus Rossini, CIOp, Universidad Nacional de la Plata, Argentina Co-Chair: Miguel Torres-Cisneros, Universidad de Guanajuato, México 10:15-10:45 2285207 POE4 Invited Keynote MODELOCKED ALL-FIBER LASERS BASED ON ADVANCED ACOUSTOOPTIC MODULATORS BELLO-JIMÉNEZ M.1, CUADRADO-LABORDE C.2, DÍEZ A.1, CRUZ J. L.1, ANDRÉS M. V.1 1 Universidad de Valencia/2Centro de Investigaciones Ópticas - CONICET

10:45-11:00 2284347 POE4 Oral 34

PLANAR AND CHANNEL WAVEGUIDES FABRICATED BY ION IMPLANTATION IN YB:YAG CRYSTALS VÁZQUEZ G.V.1, FLORES-ROMERO E.2, MÁRQUEZ H.3, RICKARDS J.2, TREJO-LUNA R.2, RAMÍREZ D.1 1 Centro de Investigaciones en Óptica A.C./2Instituto de Física, UNAM/3Departamento de Óptica, CICESE

11:00-11:15 2284627 POE4 Oral ALUMINOSILICATE GLASSES DOPED WITH TB3+, CE3+, SM3+ FOR WHITE LIGHT GENERATION BERNESCHI S.1, BRENCI M.2, RIGHINI G.C.2, BETTINELLI M.3, SPEGHINI A.4, CALDINO U5, FERRARI M.6, CHIASERA A.6 1 IFAC CNR & Centro Studi e Ricerche Enrico Fermi, Italy/2IFAC CNR/3IFAC CNR, Università di Verona & INSTM Verona, Italy/4Università di Verona & INSTM Verona, Italy/5Departamento de Fisica, UAM Iztapalapa, Mexico/6IFN CNR, Trento

11:15-11:30 2285026 POE4 Oral DUAL WAVELENGTH TITANIUM:SAPPHIRE LASER ZAPATA-NAVA O.J, TREVINO-PALACIOS C.G. Instituto Nacional de Astrofísica Óptica y Electrónica

11:30-11:45 2285083 POE4 Oral THEORY AND SIMULATION OF A TWO COUPLED-CAVITIES FIBER LASER PAULUCCI E.1, RUSSO N.A.1, SICRE E.E.2, DUCHOWICZ R.1 1 Centro de Investigaciones Ópticas (CCT CONICET La Plata - CIC)/2Intec, Universidad Argentina de la Empresa

12:00-13:30

POE 5

Oriental

Photonics and Opto-Electronics Chair: Miguel V. Andres, Department of Applied Physics - University of Valencia, Spain Co-Chair: Verónica Vázquez, CIO, México 12:00-12:30 2284955 POE5 Invited Keynote COMPRESSION AND EQUALIZATION OF ARBITRARY FORM PULSES FOR OPTICAL FIBER APPLICATIONS BULUS-ROSSINI L. A.1, COSTANZO-CASO P. A.1, DUCHOWICZ R.1, SICRE E. E.2 1 Centro de Investigaciones Ópticas (CIO) and Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata (BA), Argentina/2Instituto de Tecnología, Facultad de Ingeniería y Ciencias Exactas, Universidad Argentina de la Empresa, Buenos Aires, Argentina

12:30-12:45 2284510 POE5 Oral 35

ERBIUM-DOPED PHOTONIC CRYSTAL FIBER CHAOTIC LASER: STUDY FOR SECURE COMMUNICATIONS MARTIN J.C.1, USED J2, SANCHEZ-MARTIN J.A.1, BERDEJO V1, VALLÉS J.A.1, ALVAREZ J.M.1, REBOLLEDO M.A.1 1 University of Zaragoza/2University Rey Juan Carlos

12:45-13:00 2284867 POE5 Oral PHOTONIC SECOND-ORDER DUTY-CYLE MODULATOR COSTANZO-CASO P. A.1, JIN Y.2, GRANIERI S.2, SIAHMAKOUN A.2 1 Centro de Investigaciones Ópticas (CIOp) and Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata (BA), Argentina/2Physics and Optical Engineering Department, Rose-Hulman Institute of Technology, Terre Haute (IN), United States

13:00-13:15 2285528 POE5 Oral IMPROVEMENTS AMPLIFICATION PARAMETERS FOR RADIO OVER FIBER WILLIAM PUCHE W.P1, FERNEY AMAYA F.A1, GERMAN MONTOYA G.M2, JAVIER SIERRA J.S1 1 Universidad Pontificia Bolivariana/2Universidad de los Andes

13:15-13:30 2285952 POE5 Oral DESIGN OF ONE-DIMENSIONAL PHOTONIC CRYSTALS BY PLANE WAVE EXPANSION METHOD LÓPEZ-AVILÉS H.E.1, GÓMEZ-SARABIA C.M.1, TORRES-CISNEROS M.1, ALEJO-MOLINA A.2, SÁNCHEZ-MONDRAGÓN J.J.2 1 DICIS, Universidad de Guanajuato/2Lab. de Fotónica y Física Óptica, INAOE

10:15-11:45

FDI 5

Angelópolis

Fabrication, Design, and Instrumentation Chair: Carlos Gómez-Reino, Grupo de Microoptica y Optica (GRIN), Unidad Asociada al Instituto de Ciencia de Materiales de Aragón, CSIC, Zaragoza, Spain Co-Chair: Yukitoshi Otani, CORE-Utsunomiya University, Japan 10:15-10:45 2285818 FDI5 Invited Keynote DEVELOPING THE REFRACTIVE LIGHT BEAM SHAPERS AS LOW-LOSS APODIZATION SYSTEMS SUPPRESSING SIDE-LOBES IN THE FOURIER TRANSFORM OPTICAL SYSTEMS LASKIN ALEXANDER1, SHCHERBAKOV ALEXANDRE2 1 AdlOptica GmbH/2National Institute for Astrophysics, Optics & Electronics

10:45-11:00 2284908 FDI5 Oral 36

NON-PERPENDICULAR INCIDENCE ON TRANSMISSIVE LCDSLM: INFLUENCE IN THE MODULATION PREDICTION VARGAS A.1, FIGUEROA H.1, MORENO I.2 1 Universidad de La Frontera/2Universidad Miguel Hernández

11:00-11:15 2285250 FDI5 Oral IN VACUUM PERFORMANCE EVALUATION OF THE MUX CAMERA FOR THE CBERS 3&4 SATELLITES SCADUTO L.C.N, MALAVOLTA A.T, VALES L.F, MODUGNO R.G, CARVALHO E.G, STEFANI M.A., CASTRO NETO J.C. Opto Eletrônica S.A.

11:15-11:30 2286115 FDI5 Oral MICROREFLECTANCE DIFFERENCE SPECTROSCOPY LASTRAS-MARTÍNEZ L.F., ZAMUDIO-DEL POZO O., HERRERA-JASSO R., ULLOA-CASTILLO N.A., CASTRO-GARCÍA R., BALDERAS-NAVARRO R.E., LASTRAS-MARTÍNEZ A. Universidad Autónoma de San Luís Potosí

11:30-11:45 2286120 FDI5 Oral STUDY OF THE FOCUSING OPTICS IN A CZERNY-TURNER SPECTROGRAPH SÁNCHEZ E.R, COELLO R.R, BALDWIN G. Pontificia Universidad Católica del Perú

12:00-13:30

FDI 6

Angelópolis

Fabrication, Design, and Instrumentation Chair: Asticio Vargas, Universidad de la Frontera, Chile Co-Chair: Duncan T. Moore, University of Rochester, USA 12:00-12:30 2285772 FDI6 Invited Keynote FULL AND PARTIAL MUELLER MATRIX POLARIMETER BY DOUBLE PHOTO-ELASTIC MODULATORS OTANI Y.O., ISHIDA S.I. CORE, Utsunomiya University

12:30-12:45 2284674 FDI6 Oral POLARIMETRY-BASED FAR-FIELD METHOD FOR HIGH-RESOLUTION OPTICAL MICROSCOPY RODRIGUEZ O.1, LARA D.2, DAINTY C.1 37

1

National University of Ireland, Galway/2Imperial College London

12:45-13:00 2284689 FDI6 Oral STOKES POLARIMETRY USING LIQUID-CRYSTAL VARIABLE RETARDERS AND NON-LINEAR VOLTAJE-RETARDANCE FUNCTION VELÁZQUEZ OLIVERA C.A.1, LÓPEZ TELLEZ J.M.1, BRUCE N.C.1 1 CCADET, Universidad Nacional Autónoma de México

13:00-13:15 2285117 FDI6 Oral HIGH RESOLUTION CONFOCAL POLARIMETER FOR THE LIVING HUMAN RETINA LARA D., PATERSON C. Imperial College London

13:15-13:30 2285951 FDI6 Oral MULTIPLEXED OPTICAL DATA STORAGE AND HIGH NA POLARIMETRY MACÍAS-ROMERO C., FOREMAN M.R., TöRöK P. Imperial College of London

OIS 5

Constancia

Optical Interaction Science Chair: Min Gu, Swinburne University of Technology, Australia Co-Chair: Alejandro Crespo-Sosa, IF-UNAM, México 10:15-10:45 2285106 OIS5 Invited Keynote INTEGRATED OPTOFLUIDIC CHIP FOR TRAPPING AND STRETCHING OF SINGLE CELLS BELLINI N.1, VISHNUBHATLA K.C.2, OSELLAME R.3, RAMPONI R.1, BRAGHERI F.4, FERRARL.4,MINZIONI P.4, CRISTIANI I.4 1 Department of Physics - Politecnico di Milano/2Center for Nano Science and Technology (CNST) - IIT @ PoliMI/3Institute of Photonics and Nanotechnology (IFN) - CNR, Milano/4Department of Electronics and CNISM - University of Pavia

10:45-11:00 2284670 OIS5 Oral LEVITATION OF COLLOIDAL PARTICLES ON AN EVANESCENT OPTICAL WAVE KHAKIMOV R., SHEVCHENKO A., HAVUKAINEN A., LINDFORS K., KAIVOLA M. Alto University

11:00-11:15 38

2285837 OIS5 Oral OPTICAL PROPULSION OF CELL IN MICROFLUIDIC DEVICES LILGE L.1, CHARRON L.2 1 University of Toronto and University Health Network/2University of Toronto

11:15-11:30 2285873 OIS5 Oral STOCHASTIC OPTIMIZATION TO PATTERN NEAR-FIELD OPTICAL FORCES FOR MICROMANIPULATION RUIZ-CORTÉS V.1, MACIAS D.2 1 Centro de Investigación Científica y de Educación Superior de Ensenada/ 2Université de Technologie de Troyes

11:30-11:45 2285994 OIS5 Oral VELOCITY SELECTIVE POLARIZATION SPECTROSCOPY OF THE D2 HYPERFINE TRANSITIONS IN ATOMIC RUBIDIUM FLORES-MIJANGOS J1, HERNANDEZ Y HERNANDEZ A1, MENDEZ-MARTINEZ E2, RAMIREZMARTINEZ F1, JIMENEZ-MIER J1 1 Instituto de Ciencias Nucleares, UNAM/2Facultad de Ciencias, Universidad Autónoma del Estado de México

10:15-11:45

OE 5

Violeta 1

Optical Engineering Chair: Andrew J. Moore, Heriot-Watt University, United Kingdom Co-Chair: Guillermo García Torrales, U. de G., México 10:15-10:45 2285416 OE5 Invited Keynote DIFFERENT APPROACHES TO OVERCOME EXISTING LIMITS IN OPTICAL MICRO AND NANO METROLOGY WOLFGANG OSTEN Universität Stuttgart Institut für Technische Optik, Germany

10:45-11:00 2284380 OE5 Oral INTERFEROMETRIC CHARACTERIZATION OF JOINT OPTICAL TABLES CORZO-GARCIA S.C., MEDINA-LOPEZ R.J., ANDERSON S., CARRILES R., RUIZ-MARQUEZ A., CASTRO-CAMUS E. Centro de Investigaciones en Óptica A.C.

11:00-11:15 2284381 OE5 Oral HOLOGRAPHIC OTOSCOPE FOR NANO-DISPLACEMENT MEASUREMENTS OF SURFACES UNDER DYNAMIC EXCITATION 39

FLORES-MORENO J.M.1, FURLONG C.2, ROSOWSKI J.J.3, DOBREV I.2, HARRINGTON E.2, CHENGJ. T.3, MENDOZA SANTOYO F.1 1 Centro de Investigaciones en Óptica/2Worcester Polytechnic Institute/3Harvard Medical School

11:15-11:30 2284405 OE5 Oral METAL NANOSTRUCTURES FOR THE ENHANCEMENT OF THE RAMAN RESPONSE OF MOLECULAR ADSORBATES GIAMMANCO F.1, MARGHERI G. 2, TRIGARI S.2, MUNIZ-MIRANDA M.3 1 University of Pisa/2ISC CNR/3University of Firenze

11:30-11:45 2285235 OE5 Oral X-RAY PHASE NANOTOMOGRAPHY THROUGH PTYCHOGRAPHIC COHERENT LENSLESS IMAGING GUIZAR-SICAIROS M., DIAZ A., MENZEL A., BUNK O. Paul Scherrer Institut

12:00-13:30

OE 6

Violeta 1

Optical Engineering Chair: Wolfgang Osten, Universität Stuttgart Institut Für Technische Optik, Germany Co-Chair: Javier Cruz-Mandujano, Universidad Michoacana, México 12:00-12:30 2284772 OE6 Invited Keynote SUBSAMPLING TECHNIQUE TO ENHANCE THE DECODED OUTPUT OF JTC ENCRYPTING SYSTEM BARRERA J.F.1, RUEDA E.A.1, RÍOS C.A.1, TEBALDI M.2, BOLOGNINI N.2, TORROBA R.2 1 Grupo de Óptica y Fotónica, Instituto de Física, Universidad de Antioquia, A.A 1226 Medellín, Colombia. 2 Centro de Investigaciones Ópticas (CONICET La Plata-CIC), UID OPTIMO - Facultad de Ingeniería and Facultad de Ciencias Exactas, Universidad Nacional de La Plata, P.O. Box 3 C.P 1897, La Plata, Argentina.

12:30-12:45 2285135 OE6 Oral IMAGE SEGMENTATION BY THE USE OF A HYBRID-TECHNIQUE: OPTICAL AND DIGITAL METHODS AGUAYO J.P.1, FLORES J.L.1, FERRARI J.A.2, GARCÍA-TORALES G.1 1 Universidad de Guadalajara/2Universidad de la República

12:45-13:00 2285196 OE6 Oral OPTICAL GRANULOMETRIES BY DIGITAL IMAGE PROCESSING ANIBAL MONTENEGRO 40

Universidad Autónoma de San Luis Potosí

13:00-13:15 2285768 OE6 Oral QUANTITATIVE ANALYSIS ON KEY ESTIMATION BY KNOWN-PLAINTEXT ATTACKS TO DRPE KAZUYA NAKANO K.N.1, HIROYUKI SUZUKI H.S.2, MASAHIRO YAMAGUCHI M.Y.1, TAKASHI OBI T.O.3, NAGAAKI OHYAMA N.O.2 1 Global Scientific Information and Computing Center, Tokyo Institute of Technology/2Imaging Science and Engineering Laboratory, Tokyo Institute of Technology/ 3Global Scientific Information and Computing Center, Tokyo Institute of Technology/4Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology

13:15-13:30 2285819 OE6 Oral IMAGE ENCRYPTION BASED ON CONVOLUTION OPERATION IN THE GYRATOR TRANSFORM DOMAIN SANDRA DAZA S.D.1, LORENZO MATTOS V L.M.2, CÉSAR TORRES M. C.T.2 1 Universidad Popular del Cesar/2Grupo LOI Universidad Popular del Cesar

10:15-11:45

BMO 2

Violeta 2

Bio-Medical Optics Chair: Daniela Iriarte, UNCPBA-CONICET, Argentina Co-Chair: Gonzalo Paez Padilla, CIO, México 10:15-10:45 2285932 BMO2 Invited Keynote ULTRAFAST-LASER INTERACTIONS WITH VIABLE-CELL 3D HYDROGEL TISSUE MODELS QIAN Z.1, MORDOVANAKIS A.G.1, FENG Y.1, COVARRUBIAS A.1, LILGE L.2, MARJORIBANKS R.S.1 1 Department of Physics, University of Toronto/2Department of Medical Biophysics, University of Toronto

10:45-11:00 2284704 BMO2 Oral CROSS-TALK ANALYSIS IN ARTERIAL HEMOGLOBIN OXYGEN SATURATION MEASUREMENTS VAZQUEZ-JACCAUD C., PAEZ G., STROJNIK M. Centro de Investigaciones en Óptica A.C

11:00-11:15 2285259 BMO2 Oral PERFORMANCE OF A NEW DEFORMABLE MIRROR FOR IN-VIVO RETINAL IMAGING 41

BALDERAS-MATA S.E, ZAWADZKI R.J, WERNER J.S. VSRI UC Davis Eye Center, University of California Davis

11:15:11:30 2284758 BMO2 Oral DETERMINATION OF COAGULATION TIME OF HUMAN BLOOD BY BIOSPECKLE TECHNIQUE PATIÑO-VELASCO M.M.1, VÁSQUEZ-LOPEZ J.A.2, ANDRADE-ERAZO C.A.1, RABAL H.J.3, ARIZAGA R.A.3, TRIVI M.3 1 Grupo de Optica y Laser. Departamento de Física, Universidad del Cauca. Carrera 5#4-70. Popayan, Colombia/2 Docente Asociado Departamento Morfologia, Facultad de Ciencias de la Salud, Universidad del Cauca, Popayán Colombia/3Centro de Investigaciones Ópticas (CONICET La Plata - CIC) and UID Optimo, Dpto. Ciencias Básicas, Facultad de Ingeniería, Universidad Nacional de La Plata, Casilla de Correo 3, 1897 Gonnet- La Plata, Argentina

11:30-11:45 2286052 BMO2 Oral AUTOFOCUSING IN MICROSCOPIC PATHOLOGY VALDIVIEZO N. J.C.1, NAVA R.2, REDONDO R.3, BUENO G.4, CRISTÓBAL G.3, DENIZ O.4, GARCIA M.5, ESCALANTE-RAMÍREZ B.2 1 INAOE/2Facultad de Ingeniería, Universidad Nacional Autónoma de México/3Instituto de Óptica "Daza de Valdés" (CSIC)/4Visilab, Univ. Castilla la Mancha/5Hospital General de Ciudad Real

12:00-13:30

BMO 3

Violeta 2

Bio-Medical Optics Chair: Sune Svanberg, Lund University, Sweden Co-Chair: Ramón Carriles-Jaimes, CIO, Mexico 12:00-12:30 2284840 BMO3 Invited Keynote NANOPROBES FOR BIOLOGICAL SENSING BARUCCI A.1, BERNESCHI S.2, COSI F.1, PELLI S.1, RIGHINI G.C.1, SORIA S.1 1 IFAC CNR/2IFAC CNR & Centro Studi e Ricerche Enrico Fermi

12:30-12:45 2285162 BMO3 Oral CYSTEINE OPTICAL SENSOR BASED ON VANADIUM OXIDE NANOPARTICLES BEZERRA-JR A.G.1, OLIVEIRA V.S.1, CELESTINO-SANTOS W.2, CEZAR A.B.2, MATTOSO N.2, SCHREINER W.H.2 1 Federal University of Technology, Parana/2Universidade Federal do Paraná

12:45-13:00 2284870 BMO3 Oral WHOLE FIELD REFLECTANCE OPTICAL TOMOGRAPHY 42

CARBONE N.A.1, GARCÍA H.A.1, DI ROCCO H.O.2, IRIARTE D.I.2, POMARICO J.A.2, RANEA SANDOVAL H.F.2 1 UNCPBA - Tandil – Argentina/2UNCPBA and CONICET- Tandil - Argentina

13:00-13:15 2285551 BMO3 Oral IMMUNOSENSOR BASED ON SURFACE PLASMON RESONANCE FOR DETERMINATION OF ANTIBODIES TO THE EPSTEIN-BARR VIRUS KOSTYUKEVYCH K.V.1, KOSTYUKEVYCH S.A. 1, KHRISTOSENKO R.V.1, NESTEROVA N.V. 2, ZAGORODNYAYA S.D. 2, BARANOVA G.V. 2, GOLOVAN A.V. 2 1 Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 41, prospect Nauki, 03028 Kiev, Ukraine/ 2Institute of Microbiology and Virusology, NAS of Ukraine, 154, Akademika Zabolotnogo str., 03680 Kiev, Ukraine

13:15-13:30 2285839 BMO3 Oral PHOTOACOUSTIC IMAGING SYSTEM BRAVO-MIRANDA C.A.1, MOOCK V.2, QUISPE-SICCHA R.M.2, GRACÍA-SEGUNDO C2, ESPINOZALUNA R.3, GUTIÉRREZ-JUÁREZ G.1 1 División de Ciencias e Ingenierías-Campus León, Universidad de Guanajuato/2Centro de Ciencias Aplicadas y Desarrollo Tecnológico-UNAM/3Centro de Investigaciones en Óptica A.C./4División de Ciencias e Ingenierías-Campus León, Universidad de Guanajuato

12:00-13:30

NO

Constancia

Nanotechnology and Optics Chair: Yasuhiko Arakawa, The University of Tokyo, Japan Co-Chair: Nikolai Korneev, INAOE, Mexico 12:00-12:30 2286195 NO Invited Keynote NONLINEAR OPTICS AT THE NANOSCALE ERIC MAZUR Area Dean of Applied Physics Balkanski Professor of Physics and Applied Physics Harvard University

12:30-12:45 2285857 NO Oral OPTICAL ABSORPTION SPECTROSCOPY OF ONE-DIMENSIONAL SILICON NANOSTRUCTURES ARZATE N.1, VAZQUEZ-NAVA R.A.1, CABELLOS J.L.1, CARRILES R.1, CASTRO-CAMUS E.1, FIGUEROA-DELGADILLO M.E.2, MENDOZA B.S.1 1 Centro de Investigaciones en Óptica A.C./2Unidad Académica de Física, Universidad de Zacatecas

12:45-13:00 2285919 NO Oral ANALISYS AND FABRICATION OF A MICRO MAGNETIC SENSOR (MOEMS) 43

TORRES-CISNEROS M.1, MAY-ARRIOJA D:A:2, LIKAMWA P.3, HERRERA-MAY A.L.4, AGUILERACORTÉS L.A.1, IBARRA-MANZANO O.G.1, PLASCENCIA-MORA H.1 1 DICIS, Universidad de Guanajuato/2Reynosa Rhode, Universidad Autónoma de Tamaulipas/3CREOL, University of Central Florida/4MICRONA, Universidad de Veracruz

13:00-13:15 2286212 NO Oral LASER SPECTROSCOPIC AND IMAGING TECHNIQUES IN BIO AND NANOTECHNOLOGY YAHIA BADR National Institute of Laser Enhanced Sciences, Cairo University

13:15-13:30 2286217 NO Oral DIFFERENT STRATEGIES TOWARDS THE DETERMINISTIC COUPLING OF A SINGLE QD TO A PHOTONIC CRYSTAL CAVITY MODE I.PRIETO1, J.HERRANZ1, Y.GONZÁLEZ1, P.A.POSTIGO1*, B.ALÉN1, L.GONZÁLEZ1, J.MARTÍN‐SÁNCHEZ1, L.J.MARTÍNEZ1, M.KALDIRIM1, D. FUSTER2, J.CANET‐FERRER2, G.MUÑOZ‐MATUTANO2, AND J.MARTÍNEZ‐PASTOR2 1 IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos, Madrid, Spain/2 UMDO (Unidad Asociada al CSIC-IMM), Instituto de Ciencia de Materiales, Universidad de Valencia, P.O. Box 22085, 4607 Valencia, Spain

15:00-16:00

Plenary 4

El Alto

Chair: Marcelo Trivi, CIOp, Argentina 2284356 OPTICAL DESIGN OF SYSTEMS WITH OFF-AXIS SPHERICAL MIRRORS DANIEL MALACARA-HERNANDEZ Centro de Investigaciones en Óptica A.C., México

16:00-18:00

Poster Session 2 Chair & Jury: Co-chairs:

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Hector Rabal, CIOp, CONICYT, La Plata-CIC, Argentina Diana Tentori, CICESE, Mexico J. Oracio C. Barbosa García CIO, México Miguel Torres- Cisneros, Universidad de Guanajuato, México Carlos Treviño, INAOE, México Roberto Ortega,CCADET-UNAM, México

POE 44

Photonics and Opto-Electronics 2284141 EMERGENCE AND DEGRADATION OF SQUEEZING IN RESONANCE FLUORESCENCE CASTRO-BELTRAN H.M. 1, HERRERA-GARZA J.R.2, HORVATH L.3 1 Centro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos 2 Facultad de Ciencias, Universidad Autónoma del Estado de Morelos/3Centre for Quantum Computer Technology, Macquarie University

2284568 COMMUTATION BETWEEN BRIGHT AND DARK SPATIAL OPTICAL SOLITONS RODRÍGUEZ-ROSALES A.A, ORTEGA-MARTÍNEZ R, ORDOÑEZ-FLORES E, KOLOKOLTSEV O. Centro de Ciencias Aplicadas y Desarrollo Tecnológico-UNAM

2284804 ALTERNATIVE ANALISYS OF PERTURBATION THEORY MARTINEZ-CARRANZA J, SOTO-EGUILAR F, MOYA-CESSA H.M. INAOE

2285115 LOW-COST AND BIO-COMPATIBLE LONG-PERIOD FIBER GRATINGS SOTO-OLMOS J.1, OROPEZA-RAMOS L.1, HERNÁNDEZ-CORDERO J.2 1 Facultad de Ingeniería, UNAM/2Instituto de Investigaciones en Materiales, UNAM

2285179 LIQUIDS ANALYSIS USING BACK REFLECTION SINGLE-MODE FIBER SENSORS SALAZAR-HARO V.H, MÁRQUEZ-CRUZ V.A, HERNÁNDEZ-CORDERO J. Instituto de Investigaciones en Materiales, UNAM

2285277 HIGH-POWER TUNABLE ERBIUM-DOPED FIBER LASER BASED ON MMI EFFECT DE LOS REYES-CRUZ H, ARROYO-RIVERA E.S, CASTILLO-GUZMAN A.A, SELVAS-AGUILAR R.1 Physical and Mathematical Science Research Center FCFM-UANL

2285288 HIGHER-ORDER DISPERSION TERMS OF A PHOTONIC CRYSTAL FIBER WITH HEXAGONAL HOLES MARQUEZ Y, TORRES-GOMEZ I, ARZATE N, MARTINEZ-RIOS A, RAMOS-ORTIZ G. Centro de Investigaciones en Óptica, A.C.

2285471 STUDY OF PHOTOSENSITIVITY IN OPTICAL FIBERS WITH LOW CONTENT OF GERMANIUM SANTIAGO-NUÑEZ I.1, SHLYAGIN M.G. 1, MARTÍNEZ-MANUEL R.2, KUKUSHKIN S.A. 3 1 Centro de Investigación Científica y de Educación Superior de Ensenada, B. C./ 2Centre for Optical Communications and Sensors Centre for Optical Communications and Sensors, University of Johannesburg, South Africa/3Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg, Russia

2285538 NOON STATES IN ENTANGLED CAVITIES 45

RODRÍGUEZ MÉNDEZ D, MOYA CESSA H.M. Instituto Nacional de Astrofísica, Óptica y Electrónica

2285852 PHASE POPULATION GRATINGS RECORDED IN YTTERBIUM DOPED FIBER AT 1064NM PLATA M.A, STEPANOV S.S. CICESE

2285864 ANALYSIS OF A MULTIPOINT SENSOR BASED ON TWO FABRYPEROT CAVITIES EMPLOYING FIBER BRAGG GRATINGS MENDEZ-ZEPEDA O, MUÑOZ-AGUIRRE S, BELTRAN-PEREZ G, CASTILLO-MIXCOATL J. Benemerita Universidad Autónoma de Puebla

2285914 NONLINEAR PULSE PROPAGATION INSIDE COUPLED SILICON NANOWIRES LOZANO-CRISOSTOMO N, AGRAWAL G.P, SANCHEZ-MONDRAGON J.J. 1 The Institute of Optics, University of Rochester/2Instituto Nacional de Astrofisica, Óptica y Electrónica

2286051 TUNABLE DUAL WAVELENGTH FIBER LASER USING MULTIMODE INTERFERENCE FILTERS ANTONIO-LOPEZ J.E, ARREDONDO-LUCIO J.A, SANCHEZ-MONDRAGON J.J, LIKAMWA P, MAY-ARRIOJA D.A. 1 National Institute for Astrophysics, Optics and Electronics/2Universidad Autónoma de Tamaulipas/3CREOL, The College of Optics & Photonics

2286081 PULSE TRAIN PROPAGATION THROUGHOUT A BIMODAL OPTICAL FIBER. PARADA-ALFONSO R.1, LUIS-RAMOS A.2, GÓMEZ-PAVÓN L.C.2 MARTÍ-PANAMEÑO E.2, VYSLOUKH V.3 1 Instituto Politécnico Nacional/2Benemérita Universidad Autónoma de Puebla/3Universidad de las Américas Puebla

2286125 NON-CLASSICAL LIGHT SOURCES IN OPTICAL FIBERS GARAY-PALMETT K.1, CORONA M.2, RANGEL-ROJO R.2, U´REN A.B.1 Universidad Nacional Autónoma de México/2Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California 1

2286147 ENTANGLED QUANTUM DOTS INTERACTING WITH THEIR OWN MICRO CAVITY CLASSICAL FIELD GARCÍA-MELGAREJO J.C.1, SÁNCHEZ-MONDRAGÓN J.J.1, SÁNCHEZ-SÁNCHEZ S.1, MAYARRIOJA D.A.2, BASURTO-PENSADO M.A.3, RUIZ-PÉREZ V.I.1 1 INAOE/2Universidad Autónoma de Tamaulipas/3CIICAp, Universidad Autónoma del Estado de Morelos

2286156 SEMICLASSICAL RESONANCE FLUORESCENCE OF A QUANTUM DOT COUPLED TO ANOTHER ONE IN A BATH GARCIA-MELGAREJO J.1, SANCHEZ-MONDRAGON J.1, SANCHEZ-SANCHEZ S.1, VAZQUEZGUARDADO A.1, MAGAÑA-LOAISA O. S.2, BASURTO-PENSADO M.3

46

1

Instituto Nacional de Astrofísica, Óptica y Electrónica/2Universidad de Rochester/3CIICAP, Universidad Autónoma del Estado de Morelos

2284703 STUDY OF ACTIVELY Q-SWITCH ERBIUM-DOPED FIBER LASER IN SYMMETRIC CONFIGURATION YU. O. BARMENKOV. 1 , S.A. KOLPAKOV. 2,A.D. GUZMÁN-CHÁVEZ. 3 A V KIR’YANOV1, M. V. ANDRES2, A. DIEZ2, J. L. CRUZ2 1 Centro de Investigaciones en Óptica, Loma del Bosque 115, c. p. 37150, Leon, Gto., Mexico/2Departamento de Óptica, Universidad de Valencia, Dr. Moliner 50, 46100 Burjassot (Valencia), Spain/ 3Departamento de Física Aplicada - ICMUV, Universidad de Valencia, Dr. Moliner 50, 46100 Burjassot (Valencia), Spain

2284657 ESTIMATION OF FIBER PARAMETERS BY USING OFRR NONLINEAR DYNAMICS IMAI Y, YAMAUCHI S, YOKOTA H. Ibaraki University

FDI

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Fabrication, Design, and Instrumentation 2283804 MEASURING RADII OF CURVATURE USING A CALIBRATED LATERAL SHEARING INTERFEROMETER ALBERTO JARAMILLO NUÑEZ INAOE

2284467 OPTICAL PRESSURE SENSOR BASED ON LIQUID LENSES AND THE POINT DIFFRACTION INTERFEROMETER GARCIA-ARELLANO A.1, GÓMEZ M.2, ACOSTA E.2 1 National Institute of Astrophysics, Optics and Electronics/2Universidad de Santiago de Compostela.

2284779 THERMAL ANALYSIS OF A FLUORESCENCE-BASED IR TO VISIBLE CONVERTER ALFARO M, PAEZ G, STROJNIK M. Centro de Investigaciones en Óptica A.C

2284886 DYNAMIC MOIRÉ PATTERNS AND MICHELSON FRINGE PATTERNS FOR PROFILOMETRY: A RESULTS COMPARATIVE ANALYSIS. DE OLIVEIRA M.E, DE OLIVEIRA G.N, DOS SANTOS P.A.M. Universidade Federal Fluminense

2284985 FEEDBACK SCHEME BASED ON FUZZY CONTROL FOR SHEAR FORCE CONTROL ESCAMILLA D.1, SILLER H.1, COELLO V.2, CORTÉS R.2 1 ITESM, Campus Monterrey/2CICESE, Unidad Monterrey

2284993 DIFFRACTION EFFICIENCIES PROFILE BY THICKNESS AND SPATIAL FREQUENCY VARIATION 47

FONTANILLA-URDANETA R.C, OLIVARES-PÉREZ A, FUENTES-TAPIA I, RÍOS-VELASCO M.A. Instituto Nacional de Astrofísica, Óptica y Electrónica

2285046 INTEGRATION OF A FLUOROMETER AND A SPECTROPHOTOMETER TO MEASURED LUMINESCENCE OF MATERIAL DOPED WITH RARE EARTH RAMIREZ-DUVERGER ALDO S, GARCÍA-LLAMAS RAÚL, ACEVES R, PITERS T.M. UNIVERSIDAD DE SONORA

2285212 CHARACTERIZATION OF AN EXPERIMENTAL ARRANGEMENT TO MEASURE POSITION OF PARTICLES IN 3D WITH A HIGH SPATIAL RESOLUTION MARTINEZ A.M.G, GUERRERO J.A.G, MORENO D.M.H Centro de Investigaciones en Óptica.

2285224 CONCENTRATION LIMIT FOR MONO-DISPERSE COLLOIDS OBSERVABLE WITH NUMERICAL DIHM RESTREPO J, GARCIA-SUCERQUIA J Universidad Nacional de Colombia

2285313 CHARACTERIZATION OF THE OPTICAL SYSTEM IN AN ADVANCED PROTOTYPE OF A NEW ACOUSTO-OPTICAL SPECTROMETER FOR MEXICAN LARGE MILLIMETER TELESCOPE ALEXANDRE S. SHCHERBAKOV 1, DANIEL SANCHEZ LUCERO 1, ALEXANDER LASKIN 2 1 National Institute for Astrophysics, Optics and Electronics/2AdlOptica GmbH

2285364 ACCURATE GENERATION OF STRUCTURED LIGHT FIELDS BY MEANS OF SYNTHETIC PHASE HOLOGRAMS CARRADA R, ARRIZÓN V. Instituto Nacional de Astrofísica, Óptica y Electrónica

2285645 CHARACTERIZATION OF HALOGEN LAMPS AS SECONDARY STANDARD OF LUMINOUS FLUX MARQUES A.A.R, SANCHEZ JR. O, FERREIRA JR. A.F.G. IPT - Instituto de Pesquisas Tecnológicas do Estado de São Paulo

2285741 SPECKLE INTERFEROMETRY SENSITIVE OUT-OF-PLANE BASED IN A COMMON-PATH INTERFEROMETER BARCELATA PINZON A, MENESES FABIAN C, PASTRANA SANCHEZ R, ROBLEDO SANCHEZ C, RODRIGUEZ ZURITA G. Benemérita Universidad Autónoma de Puebla

2285830 NEW NULL-SCREEN DESIGN FOR CORNEAL TOPOGRAPHY CAMPOS-GARCÍA M, ESTRADA-MOLINA A, DÍAZ-URIBE R. Universidad Nacional Autónoma de México, Centro de Ciencias Aplicadas y Desarrollo Tecnológico

48

2285860 VARIABLE MAGNIFICATION NUMERICAL RECONSTRUCTION OF DIGITALLY RECORDED HOLOGRAMS RESTREPO J, GARCIA-SUCERQUIA J. Universidad Nacional de Colombia Sede Medellín

2285881 PHASE-SHIFTING INTERFEROMETRY BY THE MODULATION OF THE ELECTRIC FIELD MODULE RIVERA-ORTEGA U, MENESES-FABIAN C, RODRIGUEZ-ZURITA G. Benemérita Universidad Autónoma de Puebla, Facultad de Ciencias Físico-Matemáticas

2285892 CHARACTERIZATION OF BIREFRINGENCE IN THE CORE OF OPTICAL FIBERS WITH INDUCED DISORDER PUENTE N.P.1, CHAIKINA E. I.2, HERATH S.3, YAMILOV A.3 1 UANL/2CICESE/3Department of Physics, Missouri University of Science & Technology

2285995 CURVATURE MONITORING OF A TELESCOPE SPHERICAL MIRROR DURING ITS MANUFACTURE BALDWIN G.E.1, ROMERO S.M.1, GONZALES F.A.1, CORDOVA D.N.2 1 Pontificia Universidad Católica del Perú/2Radio Observatorio de Jicamarca

2286063 TESTING A CONVERGENT OPTICS SYSTEM OFF-AXIS USING A RONCHI RULE ON A NODAL BENCH GRANADOS-AGUSTIN F.S.1, ESCOBAR-ROMERO J.F.M.1, PERCINO-ZACARIAS M.E.1, CAMPOSGARCIA M.2 1 INSTITUTO NACIONAL DE ASTROFISICA, OPTICA Y ELECTRONICA/2CENTRO DE CIENCIAS APLICADAS Y DESARROLLO TECNOLOGICO - UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO

2286187 HIGH TOPOGRAPHICAL ACCURACY BY OPTICAL NOISE REDUCTION IN DIGITAL HOLOGRAPHIC MICROSCOPY LEÓN M, RODRÍGUEZ-VERA R., RAYAS J.A., CALIXTO S. Centro de Investigaciones en Óptica A.C

2286216 DESIGN AND CONSTRUCTION OF THE AUTOMATED SCATTEROMETER FOR PARTICLE SIZING PÉREZ-MORET Y.1, MARTÍNEZ J.A.1, HERNÁNDEZ M.P.1, ABAD J.O.1, SIS R.1, LO GIOUDICE E.1, YEE-MADEIRA H.2, DÍAZ-GÓNGORA J.A.3 1 Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, La Habana, Cuba, 10400.Phone: 537-8707666/2Escuela Superior de Física y Matemáticas-IPN, UP 'ALM', Colonia Lindavista 07738, México/3Centro de Ciencia Aplicada y Tecnología de Avanzada (CICATA), IPN. Legaria 694. Colonia Irrigación México, D.F. 11500, México

OIS Optical Interaction Science

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49

2283999 GAUSS-LEGENDRE QUADRATURE METHOD USED TO EVALUATE THE ELECTRIC FIELD ENVELOPE OF ULTRASHORT PULSES IN THE FOCAL REGION OF LENSES GARCÍA-MARTÍNEZ L, ROSETE-AGUILAR M, GARDUÑO-MEJÍA J Universidad Nacional Autónoma de México, CCADET

2284104 SPECTRAL-PHASE-INFLUENCE-MATRIX TO SHAPE FEMTOSECOND PULSES CASTRO-OLVERA G.1, ORTEGA-MARTÍNEZ R.1, GARCÍA-ROCHA M.2, GARDUÑO-MEJÍA J.1 Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México 2 Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional 1

2284635 ENTANGLEMENT AND OPTIMIZED INTERFEROMETRIC PHASE MEASUREMENT HE Q, REID M.D, DRUMMOND P.D. Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology

2284773 SURFACE PLASMON POLARITONS AND NANO-PARTICLES ARRAYS SEGOVIA OLVERA P1, COELLO CÁRDENAS V.M.2 1 Universidad Autónoma de Nuevo León/2CICESE, Unidad Monterrey

2284888 FEMTO-, PICO-, AND NANO-SECOND REFRACTIVE NONLINEARITIES EXHIBITED BY AU NANOPARTICLES TORRES-TORRES C.1, TAMAYO-RIVERA L.2, RANGEL-ROJO R.3, REYES-ESQUEDA J.A.2, CHEANG-WONG J.C.2, RODRÍGUEZ-FERNÁNDEZ L.2, CRESPO-SOSA A.2, OLIVER A.2 1 Sección de Estudios de Posgrado e Investigación, ESIME-Z, Instituto Politécnico Nacional, D.F. 07738, México/2Instituto de Física, Universidad Nacional Autónoma de México, D. F. 04510, México/ 3Departamento de Óptica, Centro de Investigación Científica y de Educación Superior de Ensenada, Apartado Postal 2732, Ensenada, BC 22860, México

2284951 THERMOCAVITATION AS A TOOL FOR STRATUM CORNEUM PERMEATION PADILLA-MARTINEZ J.P.1, RAMIREZ-SAN-JUAN J.C.1, RAMOS-GARCIA R.1, FENG SUN 2, AGUILAR G.2 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2University of California Riverside

2285050 GAUSSIAN BEAM PROPAGATING IN A NONLINEAR MEDIUM USING PARAXIAL APPROXIMATION.. BARRANCO J.D, MARTI E.J.A. BUAP/FCFM

2285172 SYNERGISTIC EFFECT OF SENSITIZERS ON THE UPCONVERSION OF ZRO2 : ER3+, YB3+ NANOCRYSTALS URBINA A.1, DE LA ROSA E.1, LÓPEZ T.1, SALAS P.2, TORRES A.3, ANGELES C.4 1 Centro de Investigaciones en Óptica, A.C./2Universidad Nacional Autónoma de México/3Universidad Autónoma de Nuevo León/4Instituto Mexicano del Petróleo

50

2285183 TWO PRISMS TRANSMISSION ENHANCED BY WHISPERING GALLERY MODES: ABSORPTION EFFECTS NÁPOLES-DUARTE J. M, GASPAR-ARMENTA J. A, GARCÍA-LLAMAS R. Universidad de Sonora

2285191 AMPLITUDE AND FREQUENCY PROPERTIES OF A FOUR-PHONON BRAGG ANOMALOUS LIGHT SCATTERING IN A UNIAXIAL CRYSTAL WITH SPATIAL OPTICAL DISPERSION SHCHERBAKOV A.S.1, SANCHEZ PEREZ K.J1, NEMOV S.A2 1 INAOE/2State Polytechnic University

2285201 NONLINEAR OPTICAL RESPONSE OF SILVER NANOPARTICLES AND SILICON QUANTUM DOTS TAMAYO-RIVERA L, FERNÁNDEZ-HERNÁNDEZ R.C, BORNACELLI J, RODRÍGUEZFERNÁNDEZ L, REYES-ESQUEDA J.A, OLIVER A. Instituto de Física, Universidad Nacional Autónoma de México

2285249 NOVEL PROPERTIES OF SOLITON-PLASMON INTERACTIONS CEBALLOS-HERRERA D.E.1, SÁNCHEZ-MONDRAGÓN J.1, ALEJO-MOLINA A.1, MAY-ARRIOJA D.2, FERRANDO A.3, MILIÁN C.4 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Universidad de Tamaulipas 3 Universidad de Valencia/4Universidad Politécnica de Valencia

2285724 ASSIGNING AN EFFECTIVE REFRACTIVE INDEX FOR DIFFUSE LIGHT IN TURBID COLLOIDS CONTRERAS-TELLO H, GARCÍA-VALENZUELA A. CCADET-UNAM

2285742 A PARTICLE-LIKE MODEL FOR SOLITON PROPAGATION IN OPTICAL LATTICES RUELAS A, LÓPEZ-AGUAYO S, GUTIÉRREZ-VEGA J.C. Tecnológico de Monterrey

2285814 INVESTIGATIONS OF UPCONVERSION IN RARE-EARTH DOPED OPTICAL FIBERS MEJIA E.B.1, TALAVERA D.V.2, DE LA CRUZ-MAY L.3 1 Centro de Investigaciones en Óptica A.C./2Universidad Politécnica de Guanajuato/3Universidad Autónoma del Carmen

2285850 SPIN SELF-REPHASING AND LONG COHERENCE TIMES IN TRAPPED ATOMIC GASES F. RAMÍREZ-MARTÍNEZ1, C. DEUTSCH3, C. LACROUTE2, F. REINHARD3, T. SCHNEIDER3, J. N. FUCHS4, F. PIÉCHON4, F. LALOE3, G. KLEINE BUNING5, J. WILL5, W. ERTMER5, E. RASEL5, J. ARLT6, C. KLEMPT5, J. REICHEL3 AND P. ROSENBUSCH2 1 Instituto de Ciencias Nucleares, UNAM. Circuito Exterior s/n, Ciudad Universitaria. Delg. Coyoacán. C.P. 04510, México D.F., México/2LNE-SYRTE, Observatoire de Paris, UPMC, CNRS, 61 av de l‘Observatoire, 75014 Paris, France/3Laboratoire Kastler Brossel, ENS, UPMC, CNRS, 24 rue Lhomond, 75005 Paris,

51

France/4Laboratoire de Physique des Solides, CNRS UMR 8502, Univ. Paris-Sud, 91405 Orsay, France/5Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany/ 6 QUANTOP, Danish National Research Foundation Center for Quantum Optics, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000 Aarhus

2285944 PROPERTIES OF THE NEAR FIELD INTERACTIONS PRODUCED BY SPHERICAL NANOPARTICLES AGUILAR J.F.1, SOLER D.2, GONZÁLEZ-HERNÁNDEZ H.G.2 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Instituto Tecnológico y de Estudios Superiores de Monterrey, Campus Puebla

2286005 ANALYSIS OF THE MODAL STRUCTURE IN SILICA NANOWIRES LUIS-RAMOS A1, GÓMEZ-PAVÓN L.C.1, FÉLIX-BELTRÁN O1, CESSA-GIL H. N. 1, MARTÍPANAMEÑO E1, PARADA-ALFONSO R2 1 Benemérita Universidad Autónoma de Puebla/2Instituto Politécnico Nacional

2286042 COLLISION OF TWO SPATIAL SOLITONS IN A KERR MEDIA RAMÍREZ MARTÍNEZ D.1, MÉNDEZ OTERO M.M.1, ITURBE CASTILLO M.D.2 1 Benemérita Universidad Autónoma de Puebla 2 Instituto Nacional de Astrofísica, Óptica y Electrónica

2286089 OPTICAL SYSTEM FOR MANIPULATE MESOSCOPIC OBJECTS ON FLOW MELO C.A, SOLARTE E. Grupo de Óptica Cuántica, Departamento de Física, Universidad del Valle, Cali-Colombia

2286094 INTERFEROMETRIC STRAIN SENSOR WITH CARBON NANOTUBES REYES E.F.1, BASILIO. C.M.1, BONILLA S.M.2, GUTIÉRREZ H.M.1, TORRES C.T.1, GÓMEZ L.H.1, CALDERÓN G.U.1 1 Sección de Estudios de Posgrado e Investigación, ESIME-Z, Instituto Politécnico Nacional 2 Centro de NanoCiencia y MicroNanotecnología del Instituto Politécnico Nacional

2286140 LUMINESCENT PROPERTIES OF Y2O3:EU3+,TB3+ SOL-GEL DERIVED THIN FILMS MORALES RAMÍREZ A. DE J. , GARCÍA MURILLO A., CARRILLO ROMO F.DEJ. , DE LA ROSA E., ARENAS REYES A.M. Centro de Investigación e Innovación Tecnológica CIITEC-IPN/2Centro de Investigaciones en Óptica

2286161 RADIATION FORCES ON AU NANOPARTICLES CONSIDERING INFRARED BEAMS TORRES-TURIJÁN J.1, ORTEGA-MENDOZA J.G.2, ZACA-MORÁN P.3, CHÁVEZ F.3, RAMIREZSAN-JUAN J.C.4, R. RAMOS-GARCIA R.4, ZAPATA-NAVA O.J.4, FELIPE C.5, GRAJALES COUTIÑO R.6 1 Benemérita Universidad Autónoma de Puebla, Facultad de Electrónica/ 2 Benemérita Universidad Autónoma de Puebla, Facultad de Física Aplicada/3 Benemérita Universidad Autónoma de Puebla, Fisicoquímica de materiales, ICUAP/4Instituto Nacional de Astrofísica, Óptica y Electrónica, Departamento de Óptica/5Departamento de Biociencias e Ingeniería, CIIEMAD-IPN/6Universidad Autónoma Benito Juárez de Oaxaca, Escuela de Ciencias

52

2286185 SYNTHESIS AND LUMINESCENCE PROPERTIES OF MESOPOROUS YTTERBIUM-ERBIUM CO-DOPED TITANIUM DIOXIDE NANOPARTICLES VERA I.L.1, LÓPEZ-LUKE T.1, DE LA ROSA E.1, VILCHIS A.R.2, ANGELES-CHAVEZ C.3, SALAS P.4 1 Centro de Investigaciones de Óptica A.C/2Universidad del Estado de México/3Instituto Mexicano del Petróleo/4Centro de Física Aplicada y Tecnología Avanzada

OE Optical Engineering

La Luz

2283828 COMPARISON OF BOS AND FRINGE DEFLECTION IN TEMPERATURE MEASUREMENT BLANCO A, BARRIENTOS B, MARES C. Centro de Investigaciones en Óptica.

2283830 MEASUREMENT OF TRANSIENT DEFORMATION BY COLOR ENCODING MARES C, BARRIENTOS B, BLANCO A. Centro de Investigaciones en Óptica A.C

2284224 UNSUPERVISED COLOR IMAGE SEGMENTATION USING A LATTICE ALGEBRA CLUSTERING TECHNIQUE URCID G.1, RITTER G.X.2 1 INAOE/2University of Florida

2284535 EXPERIMENTAL ANALYSIS OF DIFFRACTION PATTERNS PRODUCED BY APERTURES WITH DIFFERENT SHAPES ON ALUMINUM AND STEEL PLATES ZÁRATE E.A, RODRÍGUEZ A.C. Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE)-Universidad Juárez Autónoma de Tabasco (UJAT)

2284818 GEOMETRICAL PROPERTIES OF MICRO-STRUCTURES BY MIRAU INTERFEROMETRIC OBJECTIVE MICROSCOPE MARIBEL JUÁREZ HERNÁNDEZ1, R.RODRÍGUEZ-VERA R2, J.A. RAYAS ÁLVAREZ.2 1 Universidad de Guanajuato, División de Ciencias e Ingenierías Campus León/ 2Centro de Investigaciones en Óptica A.C

2285292 NUMERICAL ANALYSIS OF ABSORPTION TOMOGRAPHY FOR THISTORY CALORIMETRY MORENO-ALVAREZ L, MENESES-FABIAN C, HERRERA J.N, RODRIGUEZ-ZURITA G. Benemerita Universidad Autónoma de Puebla.

2285614 WENDLAND RADIAL BASIS FUNCTIONS APPLIED AS FILTERS ON COMPUTED TOMOGRAPHY JUAN C. AGUILAR, AGUILAR J. FELIX, BERRIEL-VALDOS L.R.

53

Instituto Nacional de Astrofísica Óptica y Electrónica

2285677 DISCRETE WIGNER FUNCTION APPLIED TO IMAGES OF QUASIPOINT SOURCES IN COHERENT-LIGHT ROMERO S.MEJIA1, BERRIEL-VALDOS L.R.1, AGUILAR J.FELIX1, ORLANDO-GERRERO I.J.2 1 Instituto Nacional de Astrofísica Óptica y Electrónica INAOE (México)/ 2Universidad de la Cañada (México)

2285811 METROLOGICAL ANALYSIS OF THE HUMAN FOOT: 3D MULTISENSOR EXAMINATION MUÑOZ POTOSI A.1, MENESES FONSECA J.2, TÉLLEZ J.L.3 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Universidad Industrial de Santander/3Universidad del Cauca

2285845 JOINT TRANSFORM CORRELATOR FOR MICRO-DISPLACEMENT MEASUREMENT USING SPECKLE PATTERNS LUIS GABRIEL VALDIVIESO GONZÁLEZ L.V.1, JÁDER ENRIQUE GUERRERO BERMUDEZ J.G.2 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Universidad Industrial de Santander

2285979 PERFORMANCE OF COMPOSITE CORRELATION FILTERS IN TARGET RECOGNITION SANTIAGO E, GONZÁLEZ FRAGA J.A, ASCENCIO LÓPEZ J.I. Universidad Autónoma de Baja California

2285985 DISPLACEMENT MEASUREMENT USING THE TALBOT EFFECT AND AN ADAPTIVE PHOTODETECTOR GUÍZAR-ITURBIDE I.1, DE LA FRAGA L. G.2, RODRÍGUEZ-MONTERO P.1, MANSUROVA S.1 1 INAOE/2CINVESTAV, Departamento de Computación

2286079 DIRECTIONAL AND ISOTROPICAL EDGE EMPHASIS IN OPTICAL TOMOGRAPHY OF PHASE OBJECTS ARELI MONTES-PEREZ MP, CRUZ MENESE-FABIAN MF, GUSTAVO RODRIGUEZ-ZURITA RZ Benemérita Universidad Autónoma de Puebla

2286219 ANALOG – DIGITAL SEGMENTATION USING SPECTRAL IMAGES ACQUIRED BY ACOUSTO-OPTICAL SYSTEM ISAZA C.A.1, MOSQUERA J.C.2, PALECHOR A.F.2 1 Universidad del Quindío, Programa de Física, Facultad de Ciencias Básicas, Carrera 14 Calle 12 Norte, Armenia-Quindío, Colombia/Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, CICATA Querétaro, Cerro/2Universidad del Quindío, Programa de Física, Facultad de Ciencias Básicas, Carrera 14 Calle 12 Norte, Armenia-Quindío, Colombia

2286222 A HOLOGRAPHIC SYSTEM FOR RECORDING AND RESTITUTING NOT ONLY A 3D IMAGE OF AN OBJECT, BUT SEVERAL SETS OF DATA. APPLICATION TO MULTILINGUAL HOLOGRAPHIC POCKET DICTIONARIES SEMLALI M.1, GROSMANN M.2, LARKIN A.3 1 Faculté des sciences, Université Mohammed V-Agdal, Rabat, Maroc/2Groupe de Recherche en Photonique, Université Louis Pasteur, Strasbourg, France/ 3Institut des Ingénieurs Physiciens, Moscou, Russie 54

2286230 DEVELOPMENT OF HIGH-SPEED PHASE-SHIFTING DEVICE FOR SHAPE MEASUREMENT BY LIGHT SOURCE STEPPING METHOD OURA Y.1, FUJIGAKI M.2, MASAYA A.3, MORIMOTO Y.3 1 Graduate School of Systems Engineering, Wakayama University, Wakayama, Japan/ 2Faculty of Systems Engineering, Wakayama University, Wakayama, Japan/3Moire Institute Inc., Osaka, Japan

BMO

La Luz

Bio-Medical Optics 2284487 VALIDATION OF GA-MCML ALGORITHM AGAINST IAD PROGRAM MORALES-CRUZADO B.1, PRAHL S.A.2, DELGADO-ATENCIO J.A.1, VÁZQUEZ Y MONTIEL S.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Oregon Medical Laser Center.

2284904 DEVELOPMENT OF PROTOTYPING TECHNIQUES FOR MICROFLUIDIC-BASED SPR SENSORS MARTÍNEZ-LÓPEZ J.I.1, SILLER-CARRILLO H.R.1, COELLO-CÁRDENAS V.M.2, RODRÍGUEZ GONZÁLEZ C.A. 1 1 Tecnológico de Monterrey/2Centro de Investigación Científica y de Educación Superior de Ensenada

2285199 OPTIMAL WAVELENGTH SELECTION FOR NON-CONTACT REFLECTION PHOTOPLETHYSMOGRAPHY CORRAL L.F, PAEZ G, STROJNIK M Centro de Investigaciones en Óptica

2285260 DUAL-BEAM LASER DOPPLER VIBROMETER FOR MEASUREMENT OF PULSE WAVE VELOCITY CAMPO A.B, DIRCKX J.J.J. University of Antwerp

2285799 TIME KINETIC RESAZURIN BASED ASSAY FOR BACTERIAL AMOUNT QUANTIFICATION ARENAS Y.1, LILGE L.2 1 National Institute of Astrophysics Optics and Electronics/2University of Toronto, Medical Biophysics department

2286017 POROUS SILICON DUAL PERIODIC STRUCTURES FOR OPTICAL BIOSENSING APPLICATIONS PÉREZ K, ESTEVEZ J.O, MÉNDEZ-BLAS A, PALESTINO G Benemerita Universidad Autónoma de Puebla

2286059 THE STUDY OF GOLD NANOPARTICLES SURFACE MODIFICATION USING BSA AND CYSTEINE CARDOSO-AVILA P.E.1, PICHARDO-MOLINA J.L.1, KUMAR-KAGOLA U.2, BARBOSA-SABANERO G.3, BARBOSA-GARCIA O.1 55

1 3

Centro de Investigaciones en Óptica, A.C./2División de Ciencias e Ingenierías, Universidad de Guanajuato. Departamento de Ciencias Médicas, Universidad de Guanajuato

2285069 DETERMINATION OF STEREOISOMER IN SUGARS BY THZ-TDS YAMAUCHI S.Y.1, IMAI Y.I.1, YOKOTA H.Y.2, TONOUCHI M.T.1 1 Ibaraki University/2Osaka University

TO Theoretical Optics

La Luz

2283818 ALTERNATIVE COHERENT-MODE REPRESENTATION OF A PLANAR ELECTROMAGNETIC SOURCE OLVERA M.A., OSTROVSKY A.S. Universidad Autónoma de Puebla.

2284529 INFLUENCE OF THE MECHANICAL STRESS AND HEAT PARAMETERS INTO THE TRANSMITTANCE FUNCTION OF THE INTEGRALS OF THE DIFFRACTION PHENOMENA ZÁRATE E.A, RODRÍGUEZ A.C. Instituto Nacional de Astrofísica Óptica y Electrónica (INAOE)-Universidad Juárez Autónoma de Tabasco (UJAT).

2284806 REFLECTED WAVE ATYPICAL PHASE CHANGE AT A BOUNDARY DIAMANT R, FERNANDEZ-GUASTI M. Universidad Autónoma Metropolitana Iztapalapa

2284828 CHAIN-LIKE BEAMS WITH PHASE SINGULARITY CHEREPKO D.YU.1, KUNDIKOVA N.D.1, POPKOV I.I.1, ALIEVA T.2 1 Nonlinear Optics Laboratory, Institute of Electrophysics, South Ural State University/ 2Universidad Complutense de Madrid

2285369 OMNIDIRECTIONAL BANDGAPS IN A TERNARY ONE DIMENSIONAL PERIODIC STRUCTURE DIELECTRIC-DIELECTRIC-METAL ALEJO-MOLINA A.1, SÁNCHEZ-MONDRAGÓN J.J.1, ESCOBEDO-ALATORRE J.J.2, VÁZQUEZGUARDADO A.1, RUIZ-PÉREZ V.I.1, MAY-ARRIOJA D.A.3 1 INAOE/2UAEM, CIICAp/3UAT

2285807 ANGULAR MOMENTA AND SPIN-ORBIT INTERACTION FOR NONPARAXIAL BEAMS BLIOKH K.Y.1, ALONSO M.A.2 1 National University of Ireland/2University of Rochester

2285879 ANTENNA OF ADJUSTABLE BROADBAND BASED ON A PENTAGONAL ARRAY

56

TECPOYOTL-TORRES M.1, VERA-DIMAS J. G.1, CABELLO-RUIZ R.1, GARCÍA-GARCÍA O.1, ESCOBEDO-ALATORRE J. J.1, SANCHÉZ-MONDRAGÓN J. J.2, TORRES-CISNEROS M.3, VARONA J.4, VARGAS-BERNAL R. 5 1 Universidad Autónoma del Estado de Morelos/2 Instituto Nacional de Astrofísica, Óptica y Electrónica/3Universidad de Guanajuato/4Universidad Panamericana Campus Bonaterra/5Instituto Tecnológico Superior de Irapuato

IAPD Information Acquisition, Processing and Display

La Luz

2285355 DAMMANN GRATING COMPUTED-CONTROLLED APPLIED TO PROFILOMETRY NAVA VEGA A.1, DAVIS J.A.2 1 Universidad Autónoma de Baja California/2San Diego State University

2286232 ENHANCEMENT OF A PALCoS DISPLAY EFFICIENCY BY REDUCING THE INFLUENCE OF DIFFERENT NON-DESIRED PHENOMENA LIZANA A.1, LOBATO L.1, MARQUEZ A.2, MORENO I.3, IEMMI C.4, CAMPOS J.1 1 Universitat Autónoma de Barcelona/2Universidad de Alicante/3Universidad Miguel Hernández de Elche 4 Universidad de Buenos Aires

2286228 RESEARCH AND CAPACITY BUILDING IN LASER PHYSICS AND SPECTROSCOPY AT THE UNIVERSITY OF NAIROBI, KENYA KADUKI K.A1, KALAMBUKA H.A.1, DEHAYEM-MASSOP A.1, MITO C1, MJOMBA A.C.K1, KIMARI J.W.1, GATHONI R.N.1, WABWILE R.L.1 1 Department of Physics, University of Nairobi/P.O. Box 30197-00110, Nairobi, Kenya

2286221 STUDY OF WOUND HEALING PROCESS USING ANALOG AND DIGITAL IMAGE PROCESSING TECHNIQUES ISAZA C.A.1, MOSQUERA J.C.2, VOLOSHINOV V.B.3 1 Universidad del Quindío, Programa de Física, Facultad de Ciencias Básicas, Carrera 14 Calle 12 Norte, Armenia-Quindío, Colombia/Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, CICATA Querétaro, Cerro/2Universidad del Quindío, Programa de Física, Facultad de Ciencias Básicas, Carrera 14 Calle 12 Norte, Armenia-Quindío, Colombia/3M.V. Lomonosov Moscow State University, Physics Department , 119991 Moscow, Russia

NO Nanotechnology and Optics

La Luz

2284780 ASPHERICAL CYLINDRICAL MICRO-DOUBLETS FOR ARTIFICIAL APPOSITION COMPOUND EYE RENERO-C. F.-J, GARZA-R. A. INAOE

57

2284996 LASER INDUCED DEGRADATION OF OPTICAL PROPERTIES OF POROUS SILICON PHOTONIC STRUCTURES MARTINEZ M1, MAYORGA D1, AGARWAL V1 CIICAP-UAEM

2285414 MOEMS TRANSDUCER DESIGN FOR A BIO-COMPATIBLE BLOOD PRESSURE SENSOR FRANCO-AYALA M.F.1, MARTINEZ-PIÑON F.1, REYES-BARRANCA M.A.2, ALVAREZ-CHAVEZ J.A.1 1 CIITEC-IPN/2CINVESTAV-IPN

2285858 OPTICAL CHARACTERIZATION OF A- SIGEB: H THIN FILMS DEPOSITED BY PECVD FOR APPLICATIONS IN MICROSTRUCTURE GALINDO MENTLE MARGARITA GMM1, ZUÑIGA ISLAS CARLOS ZIC2, PALOMINO MERINO RODOLFO PMR1 1 Benemerita Universidad Autónoma de Puebla/2INAOE

2285876 DESIGN AND FABRICATION OF RECONFIGURABLE METAMATERIAL DEVICES USING MEMS ROSAS G.R.1, MURPHY R.M.1, MORENO W.M.2 1 INAOE/2University of South Florida

2285920 LIQUID CRYSTAL NANO-DROPLETS FORMATION IN POLYMER DISPERSED MATERIALS TORRES-CISNEROS M.1, LIKAMWA P.2, MAY-ARRIOJA D.A.3, AGUILERA-GÓMEZ E.1 1 DICIS, Universidad de Guanajuato/2CREOL, University of Central Florida/3Reynosa, Rodhe, Universidad Autónoma de Tamaulipas

Thursday 8:30-10:00

IUPAP Ceremony Awards

El Alto

Chair: Ari Friberg, Aalto University, University of Eastern Finland, Royal Institute of Technology, Finland IUPAP Young Scientist Prize in Optics 2009 2286225 TAMING LIGHT WAVES: ATTOSECOND CONTROL OF LIGHT AND MATTER ELEFTHERIOS GOULIELMAKIS Max Planck Institute of Quantum Optics, Garching, Germany

10:15-11:45

FDI 7

Angelópolis 58

Fabrication, Design, and Instrumentation Chair: Thomas Kreis, BIAS- Bremer Institut für Angewandte Strahltechnik, Germany Co-Chair: Maximino Avendaño-Alejo, CCADET,UNAM, México 10:15-10:45 2285804 FDI7 Invited Keynote FULL POINCARÉ BEAMS BECKLEY A.M, BROWN T.G, ALONSO M.A. University of Rochester, USA

10:45-11:00 2284364 FDI7 Oral OPTICAL PROPERTIES AND ITS VARIATIONS AT CO-NI-B AMORPHOUS METALLIC ALLOYS KRAVETS V.G.1, MANKO D.YU.2, POPERENKO L.V.1 1 Institute for Information Recording NANU/2Kiev Taras Shevchenko University.

11:00-11:15 2284829 FDI7 Oral EFFECTIVE PARAMETERS OF COMPOSED POLARIZATION SYSTEMS BIBIKOVA E.A, KUNDIKOVA N.D, POPKOVA A.M, POPKOV I.I. Optics Laboratory, Institute of Electrophysics, South Ural State University

11:15-11:30 2284967 FDI7 Oral CYCLIC PATH INTERFEROMETER ILLUMINATED WITH WHITE LIGHT WITH A PHASE SHIFT POLARIZATION MODULE TOTO-ARELLANO N.I, MARTÍNEZ-GARCÍA A, SERRANO-GARCÍA D.I, RAYAS-ALVAREZ J.A. Centro de Investigaciones en Óptica A.C.

11:30-11:45 2285722 FDI7 Oral MUELLER POLARIMETRY OF POLARIZATION GRATINGS IN AZOBENZENE-CONTAINING POLYMER FILMS MARTINEZ-PONCE G.1, GARCIA-TENORIO T.2, LARIOS-LOPEZ L.2 1 Centro de Investigaciones en Óptica, A. C./2Centro de Investigación en Química Aplicada

12:00-13:30

FDI 8

Angelópolis

Fabrication, Design, and Instrumentation Chair: Nataliya Kundikova, Nonlinear Optics Laboratory, Institute of Electrophysics, South Ural State University, Russia Co-Chair: Geminiano Martínez Ponce, CIO, México 12:00-12:30 59

2284660 FDI8 Invited Keynote HOLOGRAPHIC APPROACH TO 3D-TELEVISION THOMAS KREIS BIAS- Bremer Institut für Angewandte Strahltechnik

12:30-12:45 2284157 FDI8 Oral HOLOGRAPHIC GRATINGS IMPLEMENTED IN A PHOTOPOLYMERIZABLE GLASS: APPLICATION TO FEMTOSECOND LASER PULSES SHAPING HERNÁNDEZ-GARAY M.P.1, MARTÍNEZ-MATOS O.1, IZQUIERDO J.G.2, CALVO M.L.1, CHEBEN P.3, BAÑARES L.1 1 Departamento de Óptica, Grupo Interdisciplinario de Computación Óptica (GICO-UCM,) Facultad de Ciencias Físicas, Universidad Complutense de Madrid/2Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid/3Institute for Microstructural Sciences, National Research Council Canada

12:45-13:00 2286122 FDI8 Oral PROPERTIES OF CAUSTICS PRODUCED BY A CONIC LENS: MERIDIONAL RAYS AVENDAÑO-ALEJO MAXIMINO M.A.A, GONZÁLEZ-UTRERA DULCE MARÍA D.G.U. Universidad Nacional Autónoma de México, Posgrado de Ingeniería

13:00-13:15 2285343 FDI8 Oral APPLICATION OF FRAUNHOFER DIFFRACTION PATTERNS FOR CALCULATION OF FRACTAL DIMENSION ZINCHIK A.A, MUZYCHENKO Y.B, STAFEEV S.C. Saint-Petersburg State University of Information Technologies, Mechanics and Optics

13:15-13:30 2285782 FDI8 Oral FRESNEL LENSES IN NOVEL OPTICAL SECURITY HOLOGRAMS KOSTYUKEVYCH S.A.1, BRAGINETS E.V.2, KOSTYUKEVYCH K.V.1, GIRNYK V.I.1 1 Institute of Semiconductor Physics, National Academy of Sciences of Ukraine 2 Taras Shevchenko Kyiv National University

10:15-11:45

VC 2

Violeta 2

Vision and Colour Chair: Susana Marcos, Instituto de Óptica, Consejo Superior de Investigaciones Científicas, Spain Co-Chair: Francisco J. Cuevas, CIO, México 10:15-10:45 2286205 VC2 Invited Keynote 60

NEW TRENDS IN INTRAOCULAR LENS IMAGING MARÍA S. MILLÁN Universidad Politécnica de Cataluña, Spain

10:45-11:00 2284191 VC2 Oral OPTICAL PHENOMENA IN MICROPRISM DIAGNOSTIC SET KK-42 PETROV V.V, KRYUCHUN A.A, ANTONOV E.E, LAPCHUK A.S, SHANOYLO S.M Institute for Information Recording NAS of Ukraine.

11:00-11:15 2284402 VC2 Oral LENS PARADOX: GRIN ANALYTICAL EXPLANATION GOMEZ-REINO C.1, DÍAZ DEL RÍO A.1, ARINES J.2, FLORES-ARIAS M.T.1 1 Universidade de Santiago de Compostela/2Universidad de Santiago.

11:15-11:30 2284686 VC2 Oral EFFECT OF CATARACTS ON SCATTERING OF LIGHT IN THE EYE KELLY PÉREZ I.1, BRUCE N.C.2, BERRIEL-VALDOS L.R.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2CCADET, Universidad Nacional Autónoma de México

11:30-11:45 2285583 VC2 Oral OPTICAL COMPUTING OF DIFFRACTION IMAGES OF NON-PERIODIC UNIDIMENSIONAL TARGETS FORMED BY A HUMAN EYE IN THE PRESENCE OF STILES -CRAWFORD EFFECT-I MONDAL P.K.1, MONDAL A.K.2, GHOSH SUMIT3 1 Mondal Institute of Optics ( MIO ), HYDERABAD, INDIA/2L.V. Prasad Eye Institute, HYDERABAD, INDIA/3A.V. College of Science, HYDERABAD, INDIA

12:00-13:30

TO 3

Violeta 2

Theoretical Optics Chair: Rubén Ramos, INAOE, México Co-Chair: Neil C. Bruce, CCADET- UNAM, México 12:00-12:30 2284513 TO3 Invited Keynote EFFECT OF PLASMA WAVES ON THE OPTICAL PROPERTIES OF WELLS VAZQUEZ-NAVA R. A, SANTIAGO-HERNANDEZ H, RODRIGUEZ-CARRERA S. Centro de Investigaciones en Óptica A. C.

12:30-12:45 61

2286234 TO3 Oral DERIVATION OF MATERIAL CONSTANTS IN NON-LINEAR ELECTROMAGNETO-THERMO-ELASTICITY OM NIRAULA Department of Physics, Tribhuvan University Amrit Campus, Nepal

12:45-13:00 2286220 TO3 Oral INTERACTION OF A MODEL ATOM EXPOSED TO A STRONG LASER PULSE: ROLE OF THE COULOMB POTENTIAL TETCHOU NGANSO H.M.1, KWATO NJOCK M.G.2 1 Institute of Condensed Matter and Nanosciences, Universite Catholique de Louvain, 2, chemin du Cyclotron, B-1348 Louvain-la-Neuve, Belgium/2Centre for Atomic Molecular Physics and Quantum Optics (CEPAMOQ), Faculty of Science, University of Douala, P.O. Box 8580, Douala, Cameroon. The Abdus Salam International Centre for Theoretical Physics, Strada Costiera, 11, 34014 Trieste, Italy

13:00-13:15 2285918 TO3 Oral CLASSICAL MODELLING OF THE FOURTH-ORDER SPATIAL COHERENCE STATE OF SCALAR WAVE-FIELDS CASTAÑEDA R.1, CAÑAS-CARDONA G.2, GONZÁLEZ-TORO J.1, VINCK-POSADA H.3 1 Physics School, Universidad Nacional de Colombia Sede Medellín/2Physics School, Universidad Nacional de Colombia Sede Medellín and Center for Optics and Photonics, Universidad de Concepción, Chile/ 3Physics Department, Universidad Nacional de Colombia Sede Bogotá

13:15-13:30 2286211 TO3 Oral STUDY OF SOLITON SELF-COMPRESSION IN PHOTONIC NANOWIRES BEN-SALEM A, CHERIF R, ZGHAL M. University of Carthage, Engineering School of Communication of Tunis (Sup Com), Cirta Com Laboratory, Ghazala Technopark

10:15-11:45

OE 7

Violeta 1

Optical Engineering Chair: Ichirou Yamaguchi, Toyo Seiki and Gunma University, Japan Co-Chair: Carlos Pérez López, CIO, México 10:15-10:45 2284573 OE7 Invited Keynote MEASUREMENTS OF EXTREME PHYSICAL PHENOMENA BY FOURIER FRINGE ANALYSIS MITSUO TAKEDA UEC, The University of Electro-Communications, Japan

62

10:45-11:00 2284194 OE7 Oral IMPLEMENTATION OF NON-MONOTONIC LOGICS BY FOURIERHOLOGRAPHY TECHNIQUE PAVLOV A.V, ALEKSEEV A.M. St.Petersburg State University for Information Technologies, Mechanics, and Optics

11:00-11:15 2285034 OE7 Oral REAL-TIME PARALLEL METHOD FOR QUADRATURE TRANSFORM ESTIMATION AND 3D SURFACE MEASUREMENT ESPINOSA-ROMERO A, LEGARDA-SAENZ R. Universidad Autónoma de Yucatán

11:15-11:30 2285262 OE7 Oral DECORRELATION AND UNIFORM IN-PLANE DISPLACEMENTS ANALYSIS IN VORTEX METROLOGY VIA FOURIER BASED TECHNIQUES ANGEL-TORO L, SIERRA-SOSA D.E. Universidad EAFIT

11:30-11:45 2286207 OE7 Oral IMAGE RESOLUTION LIMITS FOR SHAPE RECOGNITION USING THE GENERIC JACOBI FOURIER MOMENTS TOXQUI-QUITL C., PADILLA-VIVANCO A, SANTIAGO TEPANTLÁN C. Computer Vision Laboratory, Universidad Politécnica de Tulancingo

12:00-13:30

OE 8

Violeta 1

Optical Engineering Chair: Mitsuo Takeda, UEC, The University of Electro-Communications, Japan Co-Chair: Cruz Meneses-Fabián, BUAP, México 12:00-12:30 2285232 OE8 Invited Keynote DYNAMICAL DIHM STUDY OF PARTICLE AGGREGATION ON MONODISPERSE COLLOIDS RESTREPO J, GARCIA-SUCERQUIA J Universidad Nacional de Colombia

12:30-12:45 63

2285108 OE8 Oral BUTTERFLIES’ WINGS DEFORMATIONS USING HIGH SPEED DIGITAL HOLOGRAPHIC INTERFEROMETRY MENDOZA SANTOYO F.1, D. AGUAYO D.1, DE LA TORRE-I M.H.1, SALAS-ARAIZA M,D.2 1 Centro de Investigaciones en Óptica A.C./2Universidad de Guanajuato

12:45-13:00 2284812 OE8 Oral SPATIO-TEMPORAL EXPERIMENTS OF VOLUME ELASTIC OBJECTS WITH HIGH SPEED DIGITAL HOLOGRAPHIC INTERFEROMETRY PEREZ LOPEZ C, HERNÁNDEZ MONTES M.S, MENDOZA SANTOYO F, GUTIÉRREZ HERNÁNDEZ D.A. Centro de Investigaciones en Óptica, A. C.

13:00-13:15 2285806 OE8 Oral OPTICAL ANALYSE OF ELECTRO-OPTICAL SYSTEMS BY MTF CALCULUS SANTOS JR D1, STEFANI M. A.1, YASUOKA F. M. M.2, CASTRO N. J. C.2, RODRIGUES E. L. L3 1 Opto Eletronica- Brazil/2IFSC-USP/Opto Eletronica – Brazil/3EESC-USP- Brazil

13:15-13:30 2286100 OE8 Oral SOFTWARE CONFIGURABLE OPTICAL TEST SYSTEM FOR REFRACTIVE OPTICS DOMINGUEZ M.Z, WANG L, SU P, PARKS R.E, BURGE J.H. University of Arizona

10:15-11:45

POE 6

Oriental

Optical Engineering Chair: Wei Zhang, Tsinghua University, China Co-Chair: Brenda Martínez-Zérega, U. de G., México 10:15-10:45 2284995 POE6 Invited Keynote THERMOCAVITATION: A NOVEL METHOD OF CAVITATION PRODUCED BY CW LASERS RAMIREZ-SAN-JUAN J.C.1, PADILLA-MARTINEZ J.P2, PLACIDO-ZACA P.1, RAMOS-GARCIA R1 1 INAOE/2Fisicoquímica de materiales, ICUAP-BUAP

10:45-11:00 2284744 POE6 Oral BEAM MODULATED FANNING IN A CRYSTAL BATIO3 RUBIO SAAVEDRA L.A.1, MÁRQUEZ AGUILAR P.A.2, ZAMUDIO LARA A.2, VERA DIMAS J.G.1

64

1 2

Facultad de Ciencias Químicas e Ingeniería de la Universidad Autónoma del Estado de Morelos Centro de Investigación en Ingeniería y Ciencias Aplicadas

11:00-11:15 2284983 POE6 Oral HIGHLY EFFICIENT PHOTOREFRACTIVE POLYMERS DOPED WITH CYANO NON-LINEAR CHROMOPHORES HERRERA V.M.1, MALDONADO J.L.1, RODRIGUEZ M.1, RAMOS-ORTIZ G.1, MENESES-NAVA M.A.1, BARBOSA-GARCIA O.1, SANTILLAN R.2, FARFAN N.3, LACROIX P.4 1 Centro de Investigaciones en Óptica A.C./2Departamento de Química, CINVESTAV/3Facultad de Química, UNAM/4Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077, Toulouse, France

11:15-11:30 2285877 POE6 Oral ANALYSIS AND STUDY OF OPTOLECTRONICS CHARACTERISTICS OF INP PHOTODETECTORS MUÑOZ ZURITA A.L.1, CAMPOS ACOSTA J.2, MARIN CARDENAS J.M.1, LARRUQUERT J.I.2 1 Facultad de Ingeniería Mecánica y Eléctrica. U. Torreón Universidad Autónoma de Coahuila 2 Instituto de Física Aplicada IFA-CSIC

11:30-11:45 2285917 POE6 Oral OPTICAL FIBER COMMUNICATION SYSTEM EMPLOYING MULTIPLEXED WITH A BRAGG GRATING ANA PALOMINO LENGUA1, CESAR TORRES MORENO 2, ANNY JULIETH PRECIADO MOLINA 1, LORENZO MATTOS VASQUEZ.2 1 Universidad Popular del Cesar/2Grupo LOI Universidad Popular del Cesar

12:00-13:30

POE 7

Oriental

Photonics and Opto-Electronics Chair: Jorge Gaspar Armenta, UNISON, México Co-Chair: José Luis Maldonado-Rivera, CIO, México 12:00-12:30 2285492 POE7 Invited Keynote POLARIZATION ENTANGLED PHOTON PAIR GENERATION IN OPTICAL FIBERS WITH BIREFRINGENCE ZHANG WEI, ZHOU QIANG, WANG PENGXIANG, HUANG YIDONG, PENG JIANGDE Tsinghua University

12:30-12:45 2285755 POE7 Oral MEASUREMENT OF THE ORBITAL STOKES PARAMETERS OF OAM WAVES RANDUNU PATHIRANNEHELAGE N.1, GUZMAN A.M.1, RHODES W.T. 65

1

Florida Atlantic University/ Department of Physics/2Florida Atlantic University/ Department of Computer & Electrical Engineering and Computer Science

12:45-13:00 2286027 POE7 Oral POWER DEPENDENT VAN DER WAALS INTERACTION IN COLD ATOM REFLECTION ESTRADA G, GUZMÁN A.M. Florida Atlantic University

13:00-13:15 2286046 POE7 Oral STATISTICAL PROPERTIES OF NOISY MULTISTABLE SYSTEMS MARTÍNEZ-ZÉREGA B.E.1, PISARCHIK A.N.2 1 Universidad de Guadalajara 2 Centro de Investigaciones en Óptica

13:15-13:30 2286149 POE7 Oral SEMICLASSICAL QUANTUM DOTS IN THEIR OWN MICRO CAVITY GARCIA-MELGAREJO J.1, SANCHEZ-MONDRAGON J.1, SANCHEZ-SANCHEZ S.1, MAGAÑALOAIZA O. S.2, TECPOYOTL-TORRES M.3, BASURTO-PENSADO M.3 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Universidad de Rochester/3CIICAP, Universidad Autónoma del Estado de Morelos

10:15-11:45

OIS 6

Constancia

Optics Interaction Science Chair: Bernardo Mendoza-Santoyo, CIO, México Co-Chair: Lothar Lilge, University of Toronto, Canada 10:15-10:45 2285127 OIS6 Invited Keynote TAILORING THE DISPERSION OF PHOTONIC CRYSTAL FIBERS FOR SUPERCONTINUUM AND PHOTON PAIRS GENERATION DÍEZ A.1, ANDRÉS M. V.1, SILVESTRE E.1, CASCANTE-VINDAS J.2, VELÁZQUEZ-IBARRA L.3, ABREU-AFONSO J.1, MARTÍNEZ MA. A.4, LUCIO J. L.3 1 Universidad de Valencia/2Universidad de Costa Rica/3Universidad de Guanajuato/4Centro de Investigaciones en Óptica

10:45-11:00 2284947 OIS6 Oral SPECKLE PHOTOELECTROMOTIVE FORCE DETECTION FREJLICH J, KUMAMOTO R Universidad Estadual de Campinas-UNICAMP

66

11:00-11:15 2285184 OIS6 Oral LINEAR AND NONLINEAR OPTICAL PROPERTIES OF METALLIC NANOCRYSTALS IN SAPPHIRE MOTA-SANTIAGO P:E, CRESPO-SOSA A, JIMÉNEZ-HERNÁNDEZ J.L, SÁNCHEZ-DENA O, SILVA-PEREYRA H.G, REYES-ESQUEDA J.A, OLIVER A. Instituto de Física, Universidad Nacional Autónoma de México

11:15-11:30 2284331 OIS6 Oral DIRECT LASER WRITING: SUPERRESOLUTION PHOTOINDUCTIONINHIBIED NANOLITHOGRAPHY (SPIN) GU M, CAO Y, GAN Z, JIA B, BAO H, LI X Swinburne University of Technology

11:30-11:45 2286124 OIS6 Oral TIO2 AS A PLATFORM FOR ALL-OPTICAL SWITCHING EVANS C.C.1, BRADLEY J.D.B.1, MARTÍ-PANAMEÑO E.A.3, MAZUR E.1 1 Harvard University/2Benemérita Universidad Autónoma de Puebla

12:00-13:30

OIS 7

Constancia

Optical Interaction Science Chair: Roberta Ramponi, Department of Physics - Politecnico di Milano, Italy Co-Chair: Norberto Arzate-Plata, CIO, México 12:00-12:30 2285132 OIS7 Invited Keynote BAND STRUCTURE OF THREE DIMENSIONAL PHOTONIC CRYSTALS DETERMINED BY USING INTEGRAL METHODS AND DYADIC GREEN’S FUNCTIONS VILLA F.V.1, MENDOZA A.S.2, GUEL J.A.T.1, PEREZ H.A.2 1 Centro de Investigaciones en Optica, A.C./2Facultad de Ciencias Físico-Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo

12:30-12:45 2285091 OIS7 Oral OPTICAL PROPERTIES OF 3D NANOSTRUCTURED COMPOSITES BERNARDO MENDOZA 1, W. LUIS MOCHÁN 2, GUILLERMO ORTIZ 3 1 Centro de Investigaciones en Óptica A.C 2 UNAM-ICF-Cuernavaca 3 U. del Nordeste, Argentina

12:45-13:00 67

2285991 OIS7 Oral PHOTOASSISTED POLING: ELECTRO-OPTIC MEASUREMENTS USING THE MACH-ZEHNDER INTERFEROMETER SHIMIZU F.M., GIACOMETTI J.A. Faculdade de Ciências e Tecnologia, UNESP Univ Estadual Paulista

13:00-13:15 2286130 OIS7 Oral BLEACHING RESPONSE OF PHOTOSENSITIVE FILMS CONTAINING MULTI WALLED CARBON NANOTUBES DÍAZ COSTANZO G1, LEDESMA S2, GOYANES S3 1 LPI y LP&MC, Dpto de Física, Universidad de Buenos Aires/2LPI, Dpto de Física, Universidad de Buenos Aires, CONICET/3LP&MC, Dpto de Física, Universidad de Buenos Aires, CONICET

13:15-13:30 2285425 OIS7 Oral A PROBE FOR SCANNING NEAR-FIELD MAGNETIC MICROSCOPE IN VISIBLE RANGE WROBEL P.W.1, ANTOSIEWICZ T.J.A.2, SZOPLIK T.S.1 1 University of Warsaw/2Chalmers University of Technology

15:00-16:00

Plenary 5

El Alto

Chair: Daniel Malacara-Hernández 2286196 THE LAM NETWORK AND THE DEVELOPMENT OF OPTICAL SCIENCES AND APPLICATIONS IN AFRICA AHMADOU WAGUE Departement de Physique, Faculte des Sciences et Techniques, Universite Cheikh Anta Diop de Dakar, Senegal 16:00-18:00

Poster Session 3 Chair & Jury: Co-chairs:

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Marcelo Trivi, CIOp, Argentina Heriberto Márquez, CICESE, México Ruben Ramos, INAOE, México Miguel Asmad, PUCP, Perú Mourad Zgahl, University of Carthage, Tunis Guillermo García Torrales U. de G., México

FDI

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Fabrication, Design, and Instrumentation 68

2283168 HIGH-INTENSITY YB3+-DOPED FIBRE LASER FOR ENGRAVING AND CUTTING ACRYLIC RAMIREZ-YAÑEZ E.A, CRUZ-CONTRERAS A, ALVAREZ-CHAVEZ J.A. CIITEC-IPN

2284302 INTERFEROMETRIC CHALMER’S TEST USING A REFLECTIVE MICRODISPLAY CANALES_PACHECO B, GRANADOS_AGUSTÍN F, CORNEJO_RODRÍGUEZ A National Institute of Astrophysics Optics and Electronics

2284451 WAVEFRONT DETERMINATION USING THE RONCHI TEST WITH EQUIVALENT WAVELENGTH GARCIA-ARELLANO A, GRANADOS-AGUSTIN F, CORNEJO-RODRIGUEZ A. National Institute of Astrophysics, Optics and Electronics

2284594 THE EFFECT OF ALIGNMENT ERRORS IN POLARIMETRY OF LIGHT USING LIQUID-CRYSTAL VARIABLE RETARDERS. LÓPEZ-TÉLLEZ J.M, BRUCE N.C. Centro de Ciencias Aplicadas y Desarrollo Tecnológico, UNAM.

2284962 SLOPE MEASUREMENT OF A PHASE OBJECT TOTO-ARELLANO N.I, MARTÍNEZ-GARCÍA A, RAYAS-ÁLVAREZ J. A, SERRANO-GARCÍA D. I.

Centro de Investigaciones en Óptica A.C 2284964 PARALLEL PSI USING A DOUBLE CYCLIC SHEAR INTERFEROMETER TOTO-ARELLANO N.I, SERRANO-GARCÍA D.I, MARTÍNEZ-GARCÍA A, RAYAS-ALVAREZ J.A. Centro de Investigaciones en Óptica A.C.

2284970 SIMULTANEOUS PHASE SHIFTING INTERFEROMETRY BASED IN A MICHELSON INTERFEROMETER SERRANO-GARCÍA D.I.1, TOTO-ARELLANO N.I.1, MARTÍNEZ-GARCÍA A.1, RAYAS-ÁLVAREZ J.A.1, MONTES-PERÉZ A.2 1 Centro de Investigaciones en Óptica A.C./2 Benemérita Universidad Autónoma de Puebla

2284999 CHARACTERIZATION OF A HYDROGENATED AMORPHOUS SILICON MICROBOLOMETER ARRAY ORDUÑA DÍAZ A1, ROJAS LÓPEZ M1, DELGADO MACUIL R.J.1, TORRES JACOME A2, DE LA HIDALGA WADE F.J2, FERRUSCA DANIEL2, VENTURA GONZÁLEZ SALVADOR2, TREVIÑO PALACIOS C.G2 1 Centro de Investigación en Biotecnología Aplicada, IPN/2Instituto Nacional de Astrofísica Óptica y Electrónica

2285028 PARAMETER EVOLUTION DIFFRACTION EFFICIENCY OF GRATINGS WITH CORN SYRUP MEJIAS-BRIZUELA N.Y.1, OLIVARES-PÉREZ A. 1, GRANDE-GRANDE A.2, ORDÓÑEZ-PADILLA M.J.1 69

1

INAOE/2Instituto Tecnológico Superior de Atlixco

2285033 PVA WITH NOPAL DYE AS HOLOGRAPHIC RECORDING MATERIAL TOXQUI-LÓPEZ S.1, OLIVARES-PÉREZ A.2, FUENTES-TAPIA I.2, PINTO-IGUANERO B.1 1 Benemérita Universidad Autónoma de Puebla (BUAP)/2Instituto Nacional de Astrofísica Óptica y Electrónica (INAOE)

2285258 COHERENCE MATRIX FOR SPECKLE PATTERNS DÍAZ GONZÁLEZ G.1, MARTÍNEZ VARA P.2, MARTÍNEZ NICONOFF G.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica, INAOE/ 2Benemérita Universidad Autónoma de Puebla, BUAP

2285383 A SYSTEM FOR THE STUDY OF THE SOUND PHENOMENA IN ALLOY SAMPLES OF FE2MO VILLAFAÑA RAUDA EDGAR 1, CRUZ MANDUJANO JAVIER 2, MORALES ESTRELLA RICARDO 3 1 Centro Universitario de Los Lagos, Universidad de Guadalajara/ 2Universidad Michoacana de San Nicolás de Hidalgo, Dpto. de Ciencias Básicas y Matemáticas, Facultad de Ingeniería Civil/3Universidad Michoacana de San Nicolás de Hidalgo

2285477 STRUCTURAL CHARACTERIZATION OF OPUNTIA LASER USING FT-IR AND THERMAL ANALYSIS MEJIAS DIAZ K. D, FLORES REYES T, PONCE CABRERA L, ARRONTE GARCÍA M.A, DOMÍNGUEZ SÁNCHEZ M.A. CICATA IPN

2285588 PROGRESS IN THE DESIGN OF CHROMATIC NULL SCREENS TO TEST CYLINDRICAL PARABOLIC CONCENTRATORS BELTRÁN MADRIGAL J.1, DÍAZ URIBE J.R.2 1 Universidad Nacional Autónoma de México/2Centro de Ciencias Aplicadas y Desarrollo Tecnológico UNAM

2285656 QUANTITATIVE EVALUATION OF A PLANO-CONVEX PARABOLIC LENS GONZALEZ-UTRERA D, AVENDAÑO-ALEJO M. Universidad Nacional Autónoma de México

2285745 FOCUSING A MICROSCOPE WITH A SINGLE ADDITIONAL MOVING LENS LARA-GARCÍA H.1, DIAZ-URÍBE R.2, CORKIDI-BLANCO G.3, PIMENTEL-CABRERA A.3 1 Facultad de Ciencias UNAM/2CCADET UNAM/3IBt UNAM

2285802 DRAGGING FORCE VERSUS SPEED AND POLISHER DENSITY WITH TEFLON® TOOLS IZAZAGA-PÉREZ R.1, CORDERO-DÁVILA A.2, GONZÁLEZ-GARCÍA J.3, CUAUTLE-CORTÉS J.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE)/2Benemérita Universidad Autónoma de Puebla (BUAP)/3Universidad Tecnológica de la Mixteca (UTM)

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2285935 OPTO-MECHANICAL DESIGN, ANALYSIS AND SIMULATION OF TUNABLE LIQUID-FILLED LENSES SANTIAGO ALVARADO A1, GONZÁLEZ GARCÍA J1, ITUBIDE JIMÉNEZ F1, CAMPOS GARCÍA M2, VÁZQUEZ MONTIEL S3, LICONA MORAN B.I.G.1 1 Universidad Tecnológica de la Mixteca/2Universidad Nacional Autónoma de México/3Instituto de Astrofísica, Óptica y Electrónica

2285957 QUANTITATIVE SURFACE EVALUATION BY MATCHING EXPERIMENTAL AND SIMULATED RONCHIGRAM IMAGES KANTUN J.R1, CORDERO A.1, GONZALEZ J.2 1 Benemérita Universidad Autónoma de Puebla/2Universidad Tecnológica de la Mixteca

2286095 AN ELECTRO-OPTO-MECHANICAL DEVICE TO MAKE DIFFRACTIVE OPTICAL ELEMENTS CASTRO-RAMOS J, GORDIANO-ALVARADO G, ORTIZ-LIMA C.M, DE JESUS-ORTIZ M.A, VAZQUEZ-MONTIEL S, JARAMILLO-NÚÑEZ A. Instituto Nacional de Astrofisica Óptica y Electrónica

2286097 ELECTRO-MECHANICAL BENCH FOR A BEAM SHAPER OF GLASS PRISMS HERRERA-MARTÍNEZ G.1, LUNA A.1, GÓMEZ-ARISTA I.2, ROBLEDO-VÁZQUEZ R.A.2 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Universidad Nacional Autónoma de México 2286135 APPLICATION

OF LASER SHOCK PROCESSING ON BIOCOMPATIBLE

METAL GOMEZ-ROSAS G.1, RUBIO-GONZÁLEZ C.2, OCAÑA J.L.3, MOLPECERES C.3, CHAVEZ-CHAVEZ A.1, BLANCO-ALONSO O.1, CASILLAS F.J. 4 1 Centro Universitario de Ciencias Exactas e Ingenierías, CUCEI. Universidad de Guadalajara/ 2Centro de Ingeniería y Desarrollo Industrial, CIDESI/3Centro Laser Madrid, Departamento de Física Aplicada a la Ingeniería Industrial, E.T.S.I.I. Universidad Politécnica de Madrid/ 4Centro Universitario de los Lagos CULAGOS. Universidad de Guadalajara

2286136 ALIGNMENT OF A PDLC DROPLETS BY MECHANICAL VIBRATION TECHNIQUES PÉREZ-CORTÉS M.1, CARVENTE-MUÑÓZ O.1, ORTÍZ-GUTIÉRREZ M.2 1 Universidad Autónoma de Yucatán/2Universidad Michoacana de San Nicolás de Hidalgo

2286138 CHARGED-PARTICLE PROTOTYPE DETECTOR TO BE USED IN STUDIES WITH RADIOACTIVE ION BEAMS MEZA-OLIVO A.A.1, GALINDO-URIBARRI A.2, ORTEGA-MARTÍNEZ R.1, PADILLA-RODAL E.1 1 UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO/2OAK RIDGE NATIONAL LABORATORY

2285100 FOCUSING PROPERTIES OF THUE-MORSE ZONE PLATES CASANOVA C.1, REMÓN L. 2, CALATAYUD A.2, GIMÉNEZ F.2, ANDRÉS P.1, MONSORIU J.A. 2, FURLAN W.D.1 1 Universitat de València 2 Universitat Politècnica de València

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Vision and Colour 2285422 TANGENTIAL AND SAGITTAL CURVATURE FROM THE NORMALS COMPUTED BY THE NULL SCREEN METHOD IN CORNEAL TOPOGRAPHY ESTRADA-MOLINA A, DÍAZ-URIBE R. Universidad Nacional Autónoma de México

2285774 ENERGY BALANCE IN APODIZED DIFFRACTIVE MULTIFOCAL INTRAOCULAR LENSES ALBA-BUENO F, VEGA F, MILLÁN M.S. Universitat Politécnica de Catalunya

2285835 DYNAMIC POINT SHIFTING IN NULL SCREEN VIDEOKERATOMETRY RODRÍGUEZ RODRÍGUEZ M.I.1, JARAMILLO NÚÑEZ A.1, DÍAZ URIBE R.2 1 Instituto Nacional de Astrofísica Óptica y Electrónica/2Centro de Ciencias Aplicadas y Desarrollo Tecnológico-Universidad Nacional Autónoma de México

2286068 SPHERICAL ABERRATION AND DEPTH OF FIELD IN SIMPLE OPTICAL SYSTEMS MUÑOZ A.F, VALDIVIESO L.G, LOPEZ E, IBARRA J, TEPICHIN E. INSTITUTO NACIONAL DE ASTROFÍSICA, ÓPTICA Y ELECTRÓNICA

2286133 OBJECTIVE VISUAL ACUITY IN HUMAN EYES OBTAINED FROM ITS WAVEFRONT ABERRATION FUNCTION VARILLAS G, LÓPEZ-OLAZAGASTI E., SÁNCHEZ DE LA LAVE D., RAMÍREZ-ZAVALETA G., TEPICHÍN E. INAOE, México

2286233 PARADOXICAL DESIGN OF THE OPTICAL SYSTEM OF THE HUMAN EYE. EVOLUTIVE HIPOTHESIS RAFAEL NAVARRO ICMA, Consejo Superior de Investigaciones Científicas & Universidad de Zaragoza, Facultad de Ciencias. Plaza San Francisco s/n, 50009 Zaragoza, Spain

IAPD

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Information Acquisition, Processing and Display 2284154 DEVELOPMENT OF FLUORESCENT MULTILAYER DISC STRUCTURE BELIAK IE.V, BUTENKO L.V. 72

Institute for Information Recording of National Academy of Science of Ukraine

2284156 HIGH-DENSITY OPTICAL DISKS FOR LONG-TERM INFORMATION STORAGE PETROV V.V, KRYUCHYN A.A, GORBOV I.V. Institute for Information Recording of National Academy of Sciences of Ukraine

2284646 CHARACTERIZATION OF ATMOSPHERIC POLLUTANTS FROM TUXTLA GUTIERREZ USING DOAS SYSTEM ORANTES-JONAPA A1, MENESES-NAVA M A2, GONZALEZ-HERRERA R1 1 UNICACH/2Centro de Investigaciones en Óptica A.C

2284866 CHARACTERIZATION OF SIGNALS ISSUED BY BATS IN THE SANTANDER DEPARTMENT (COLOMBIA) BAUTISTA MENDOZA C.O, MENDOZA CARREÑO E.F, VESGA REYES M.E. Universidad de Santander (UDES)

2285328 IMAGE-PLANE ALCOVE REFLECTION HOLOGRAM USING ONESTEP RECORDING CHENG Y.S, LEE T.C. National Central University, Taiwan, China

2285878 THE PCI CORE FOR FPGA BY CALIBRATION AND APPLICATIONS IN THE OPTICAL DETECTION INSTRUMENTS GOMEZ JIMENEZ R, ROJAS DOMENICO J.U, URIBE VALLADARES R, MUÑOZ ZURITA A.L Facultad de Ingeniería Mecánica y Eléctrica, U .Torreón Universidad Autónoma de Coahuila

2285929 DESIGN OF A PODOSCOPY USING FRINGE PROJECTION RENERO-C F.-J, CALDERA J. INAOE, México

2286170 NOISE TOLERANT N-ORDER PHASE UNWRAPPING SYSTEM NAVARRO M.A, ESTRADA J.C, SERVIN M. Centro de Investigaciones en Óptica, México

2286208 IMAGE RECONSTRUCTION WITH BESSEL-FOURIER MOMENTS PADILLA-VIVANCO A, TOXQUI-QUITL C, CAMACHO-BELLO C. Laboratorio de Óptica y Visión por Computadora. Universidad Politécnica de Tulancingo

TO

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Theoretical Optics 2283821 OPTICAL IMAGING WITH PARTIALLY COHERENT AND PARTIALLY POLARIZED ILLUMINATION ROMERO P, OSTROVSKY A.S. Universidad Autónoma de Puebla, México

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2284810 LIGHT PROPAGATION THROUGH THIN FILMS, THE AMPLITUDE AND PHASE REPRESENTATION RUTH DIAMANT Universidad Autónoma Metropolitana-Iztapalapa, México

BMO

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Bio-Medical Optics 2284463 BIREFRINGENCE AND DEFORMATION MEASUREMENTS IN PORCINE CORNEAS USING FOURIER OCT BRIONES M.J.1, DE LA TORRE M.H.1, MENDOZA F.1, PEDROZA J.2 1 Centro de Investigaciones en Óptica A.C./2Estudio Integral de la Visión.

2284496 THEORETICAL ANALYSIS AND EXPERIMENTAL VALIDATION OF A TWO-FIBER PROBE FOR BIOMEDICAL SPECTROSCOPY APPLICATIONS DELGADO ATENCIO J.A.1, PRAHL S.A.2, VÁZQUEZ Y MONTIEL S.1, CUNILL RODRÍGUEZ M.1, GUTIÉRREZ DELGADO F.3, CASTRO RAMOS J.1 1 INAOE/2Oregon Medical Laser Center/3CEPREC

2284776 690-NM, QUASI-DIFFRACTION-LIMITED FIBRE LASER DESIGN FOR ACUPUNCTURAL ANALGESIA RIVERA-MANRIQUE I.S.1, JAQUES S.L.2, ALVAREZ-CHAVEZ J.A.1 1 CIITEC-IPN/2OREGON HEALTH STATE UNIVERSITY

2285126 SURFACE PLASMON RESONANCE TECHNIQUE USED TO DIFFERENTIATE TEQUILAS LUNA MORENO D, MONZÓN HERNÁNDEZ D. Centro de Investigaciones en Óptica, A.C., México

2285347 LOW COST OPTOELECTRONIC SYSTEM FOR DRYING PAINT MONITORING RUBINSZTAIN E.1, LUTENBERG A.1, TRIVI M. 2, PEREZ-QUINTIAN F.3 1 GLOmAe, Departamento de Física, Facultad de Ingeniería, Universidad de Buenos Aires, Av. Paseo Colón 850 C1063ACV, Ciudad de Buenos Aires, Argentina/2Centro de Investigaciones Ópticas (CONICET La Plata - CIC) and UID Optimo, Dpto. Ciencias Básicas, Facultad de Ingeniería, Universidad Nacional de La Plata, Casilla de Correo 3, 1897 Gonnet- La Plata, Argentina/3Laboratorio de Ingeniería Óptica (LIO), Departamento de Física, Facultad de Ingeniería, Universidad del Comahue, Buenos Aires 1400, 8300 Neuquén, Argentina

2285851 NON-INVASIVE OPTICAL METHOD FOR EPIDERMAL THICKNESS ESTIMATION PEÑA A, ARRONTE M, PONCE L, RODRÍGUEZ E, DE POSADA E, FLORES T. CICATA-IPN Unidad Altamira

2285965 EX-VIVO OF CERVICAL LESIONS USING OCT

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VÁZQUEZ-VILLA A.1, DELGADO-ATENCIO J.A.1, GUTIÉRREZ-DELGADO F.2, VÁZQUEZMONTIEL S.1, MARCIAL-TOLEDO S.2, CASTRO-RAMOS J.1, CHÁVEZ-MERCADO L.2 1 Instituto Nacional de Astrofísica Óptica y Electrónica/2Centro de Estudios y Prevención del Cáncer

2285968 OPTICAL COHERENCE TOMOGRAPHY IMAGE ENHANCEMENT BY USING GOLD NANOPARTICLES PONCE-DE-LEON Y.R.1, LOPEZ-RIOS J.A.2, PICHARDO-MOLINA J.L.1, ALCALA-OCHOA N.1 1 Centro de Investigaciones en Óptica 2 Universidad de Guanajuato

OE

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Optical Engineering

2283183 FIBRE LASER BEAM-ABSORPTION IN METALS FOR LASERASSISTED COLD SPRAY ORTIZ-NERIA D.I, SCHREIBER T, ALVAREZ-CHAVEZ J.A. CIITEC – IPN, México

2283831 INFLUENCE OF SOME PARAMETERS ON THE PERFORMANCE OF FRINGE PROJECTION RAMIREZ F, BARRIENTOS B. Centro de Investigaciones en Óptica A.C., México

2283940 OPTICAL NON-DESTRUCTIVE TESTING OF THE MATERIALS SURFACE STRUCTURE BASED ON LCS TOMILIN M.G, STAFEEV S.K. Saint-Petersburg SPb State University of Information Technologies, Mechanics and Optics

2284392 STRUCTURE MONITOR SYSTEM BY USING OF OPTICAL FIBER SENSOR AND WATCHING CAMERA IN UTILITY TUNNEL IN URBAN AREA NAKANO N.M.1, TORIGOE T.T.2, KAWANO M.K.2 1 Osaka Sangyo University/2NTT Infrastructure Network Corporation.

2284578 3D DISPLACEMENT AND STRAIN MEASUREMENTS USING SIMULTANEOUSLY THREE LASERS SÁNCHEZ A. A.1, DE LA TORRE-IBARRA M.H.1, SAUCEDO-A. T.2, MENDOZA SANTOYO F.1 1 Centro de Investigaciones en Óptica, A. C./2Universidad Autónoma de Zacatecas

2284745 ENCODING DEGREE TESTING IN A 4F ARCHITECTURE MAYA ROBAYO D., TEBALDI M., TORROBA R., BOLOGNINI N. Centro de Investigaciones Ópticas (CONICET La Plata-CIC), UID OPTIMO - Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina

2284822 MICHELSON MICROSCOPE INTERFERENCE OBJECTIVE FOR MICRO-STRUCTURE TOPOGRAPHY MEASURING KARIM GIBRÁN HERNÁNDEZ CHAHÍN 1, RAMÓN RODRÍGUEZ-VERA.2, JUAN ANTONIO RAYAS ÁLVAREZ2 75

1

Universidad de Guanajuato, División de Ciencias e Ingenierías Campus León/ 2Centro de Investigaciones en Óptica A.C., México

2284899 ANALYSIS OF CANTILEVER BEAM TEST USING DIGITAL IMAGE CORRELATION AND DIGITAL HOLOGRAPHY DE OLIVEIRA G.N, NUNES L.C.S, DOS SANTOS P.A.M. Universidade Federal Fluminense

2285155 3D MEASUREMENTS OF A TYMPANIC MEMBRANE WITH DIGITAL HOLOGRAPHIC INTERFEROMETRY MUÑOZ SOLÍS S.M, MENDOZA SANTOYO F.M, HERNÁNDEZ-MONTES M.H. Centro de Investigaciones en Óptica, A.C., México

2285612 TEMPERATURE DISTRIBUTION OF NON-SYMMETRIC FLAMES WITH TWO ORTHOGONAL POINT-DIFFRACTION INTERFEROMETERS AGUILAR JUAN.C, AGUILAR J.FELIX, BERRIEL-VALDOS L.R. Instituto Nacional de Astrofísica, Óptica y Electrónica, México

2285888 EXPERIMENTAL RESULTS OF PHASE RETRIEVAL WITH REDUCED NOISE USING INLINE-DHM ARRIZÓN V.1, CRUZ M.L.2 1 INAOE/2Unistmo, México

2286054 PHASE UNWRAPPING USING MORPHOLOGIC PROCESSING DE LA ROSA MIRANDA E.1, BERRIEL VALDOS L.R.2, GONZALEZ-RAMIREZ E.1, MIRAMONTES DE LEON G.1, FELIX-AGUILAR J.2 1 Universidad Autónoma de Zacatecas/2Instituto Nacional de Astrofisica Óptica y Electrónica, Mexico

2286077 LASER ULTRASOUND WITH AN ADAPTIVE INTERFEROMETER CATANA-CASTELLANOS J.A, VÁZQUEZ-LOZANO J.I, CASTILLO-MIXCÓATL J, MUÑOZAGUIRRE S, BELTRÁN-PÉREZ G. Benemérita Universidad Autónoma de Puebla, México

2286154 THE INFLUENCE OF THE TEMPERATURE IN THE UV-VIS SPECTROPHOTOMETERS CALIBRATION CARRANZA GALLARDO J.C.G, MEDINA MÁRQUEZ J.M.M INAOE, Mexico

POE

La Luz

Photonics and Opto-Electronics 2284453 HYBRID BIREFRINGENCE AND DICHROMATISM IN TWISTED SINGLE-MODE ERBIUM-DOPED FIBERS TENTORI D, GARCIA-WEIDNER . CICESE/Física Aplicada-Óptica, México

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2285187 AUTOMATIC POLISHING SPECIALTY-FIBER MACHINE FOR CLADDING-PUMPED FIBERS CUEVA-LOPEZ M, SANCHEZ-GUERRERO G.E, GUAJARDO-GONZALEZ C, CASTILLO-GUZMAN A, SELVAS R Centro de Investigación en Ciencias Físico Matemáticas - UANL, México

2285267 POINT SOURCES OF LIGHT FOR SURFACE PLASMON EXCITATION GASPAR-ARMENTA J.A.1, MAYORAL-ASTORGA L.2, RAMOS-MENDIETA F.1 1 Universidad de Sonora/2Posgrado en Ciencias (Física), Universidad de Sonora, México

2285315 CHARACTERIZATION OF PHOTON COUNTER DEVICES FOR BIOMEDICAL APPLICATIONS ORTEGA A, PAEZ G, STROJNIK M. Centro de Investigaciones en Óptica A.C. , México

2285559 SPECTROSCOPIC DETECTION OF METALS IONS USING A NOVEL SELECTIVE SENSOR PERALTA-DOMÍNGUEZ D.1, RAMOS-ORTÍZ G.1, MALDONADO-RIVERA J.L.1, RODRIGUEZ M.1, MENESES-NAVA M.A.1, BARBOSA-GARCÍA O.1, SANTILLAN R., FARFÁN N.3 1 Centro de Investigaciones en Óptica A.C./2Departamento de Química, CINVESTAV del IPN/3Facultad de Química, UNAM, México

2285709 RAMAN GAIN CALCULATION BY RAMAN THRESHOLD STUDY IN TELECOM FIBERS LELIO DE LA CRUZ MAI Universidad Autónoma del Carmen, México

2285862 NEW METHOD TO CHARACTERIZE GAUSSIAN BEAMS BALBUENA ORTEGA A1, ARROYO CARRASCO M.L1, DÁVILA PINTLE J.A1, MÉNDEZ OTERO M.M1, ITURBE CASTILLO M.D2 1 Benemérita Universidad Autónoma de Puebla/5Instituto Nacional de Astrofísica, Óptica y Electrónica

2285948 DISPERSION MEASUREMENT IN OPTICAL FIBERS OF SHORT LENGTH ARMAS-RIVERA IVÁN A.R.I1, BELTRÁN-PÉREZ GEORGINA B.P.G.1, CASTILLO-MIXCOÁTL JUAN C.M.J.1, MUÑOZ-AGUIRRE SEVERINO M.A.S.1, KUZIN-EVGENE A K.E.A.2 1 Benemérita Universidad Autónoma de Puebla, Facultad de Ciencias Físico Matemáticas/ 2Instituto Nacional de Astrofísica Óptica y Electrónica, México

2285997 THEORETICAL AND EXPERIMENTAL RESULTS OF SUPERLUMINESCENT FIBER OPTIC SOURCE PINZÓN-ESCOBAR E.F, SANDOVAL-ROMERO G.E. Universidad Nacional Autónoma de México, Centro de Ciencias Aplicadas y Desarrollo Tecnológico

2286025 SIMULTANEOUS MEASUREMENT OF CURVATURE AND TEMPERATURE USING MULTIMODE INTERFERENCE DEVICES AGUILAR-SOTO J.G.1, GUZMAN-SEPULVEDA J.R.2, TORRES-CISNEROS M.2, IBARRA-MANZANO O.G.2, MAY-ARRIOJA D.A.3 77

1

INAOE/2Universidad de Guanajuato/3Universidad Autónoma de Tamaulipas, México

2286070 FIBER BRAGG GRATING FABRICATION FOR THE IMPLEMENTATION OF SENSORS IN THE ELECTRONICS AND OPTOELECTRONICS LABORATORY AT BUAP BRACAMONTES-RODRIGUEZ Y.E, BELTRÁN-PÉREZ G, CASTILLO-MIXCÓATL J, MUÑOZAGUIRRE S. Benemerita Universidad Autónoma de Puebla, México

2286075 RAY-TRACING ALGORITHM FOR THE STUDY OF PUMP POWER ABSORPTION IN DC FIBERS NARRO R., ARRONTE M, RODRIGUEZ E, PONCE L, DE POSADA E, FLORES T. CICATA-IPN, UNIDAD ALTAMIRA, México

2286143 ZINC-DIFFUSION WAVEGUIDE FABRICATION INTO PERIODICALLY POLED LITHIUM NIOBATE RIOS L.A1, MATA J.O.2, CASILLAS P.3 1 Centro de Investigación Científica y de Educación Superior de Ensenada/2Universidad Autónoma de Baja California/3Centro de Nanociencias y Nanotecnología, UNAM

2286145 CUASI-CONTINUOUS WAVE OPO BASED ON PELRIODICALLY POLED LITHUIM TANTALATE BARBOZA N.A.1, RIOS L.A.2, CUDNEY R.S.2 1 CITEC UABC/2CICESE, México

2286151 MULTIMODE INTERFERENCE EFFECTS IN OPTICAL FIBER FOR PRESSURE SENSING APPLICATIONS RUIZ-PÉREZ V.I. V.I.1, TECPOYOTL-TORRES M. T.T.M.2, ROMERO-ANTEQUERA L. R.A.L.1, FUENTES-FUENTES M.A. M.A.1, BASURTO-PENSADO M. B.P.M.2, IBARRA-MANZANO O.G. O.G.3 1 Optics Department, National Institute of Astrophysics Optics and Electronics (INAOE)/ 2CIICAP UAEM 3 FIME University of Guanajuato, México

2286153 OPTOELECTRONIC AUTO-SYNC PASS FILTER DÁVILA PINTLE JOSÉ ANTONIO, CALDERON FLORES BENJAMIN, REYNOSO LARA EDMUNDO, RENDÓN MARIN MANUEL. Benémerita Universidad Autónoma de Puebla/ Facultad de Ciencias de la Electrónica, México

2284975 IAPD1 Invited Keynote RAMAN SPECTROSCOPY OF MINERALS AND THE EFFECT OF POLISHED SURFACE MENESES-NAVA M.A.1, ROBLES-CAMACHO J.2, SICARDI-SEGADE A.1, BARBOSA-GARCIA O.1, RAMOS-ORTIZ G.1, MALDONADO J.L.1 1 Centro de Investigaciones en Óptica A.C./2Centro INAH M

2286223 HOLOGRAPHIC SWITCHER FOR FIBER OPTIC CABLE SEMLALI M.1, GROSMANN M.2 1 Faculté des sciences, Université Mohammed V-Agdal, Rabat, Maroc/2Groupe de Recherche en Photonique, Université Louis Pasteur, Strasbourg, France

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Optical Interaction Science 2283998 EFFECTS OF PRIMARY SPHERICAL ABERRATION, COMA, ASTIGMATISM AND FIELD CURVATURE ON THE FOCUSING OF ULTRASHORT PULSES: EXPERIMENTAL RESULTS GONZÁLEZ-GALICIA M.A, GARDUÑO-MEJÍA J, ROSETE-AGUILAR M, BRUCE N.C, ORTEGAMARTÍNEZ R. Universidad Nacional Autónoma de México, CCADET, Mexico

2284558 TWO-PHOTON ABSORPTION AND LASING IN NOVEL FLUORENE POLYMERS ROMERO SERVIN S.1, RAMOS ORTIZ G.1, CARRILES R.1, MALDONADO J. L. 1, CASTRO CAMUS E.1, ZOLOTUKHIN M. G.2 1 Centro de Investigaciones en Óptica A.C./2Universidad Nacional Autónoma de México.

2284924 SOLITON COMPRESSION IN TAPERED HOLLOW-CORE PHOTONIC BANDGAP FIBERS GONZÁLEZ BAQUEDANO N.1, VARGAS S.1, ARZATE N.1, TORRES I.1, MARTÍNEZ RÍOS A.1, CEBALLOS HERRERA D.E.1, FERRANDO A.2, MILIÁN C.3 1 Centro de Investigaciones en Óptica A.C./2Departamento de Óptica, Universidad de Valencia/3ITACA, Universidad Politécnica de Valencia

2284980 QUANTUM SECURITY IN HOMODYNE RECEPTION USING WEAK COHERENT STATES GARCIA E.1, LOPEZ J.A.2, MENDIETA F.J.2, ARVIZU A.2 1 Universidad Autónoma de Baja California/2CICESE Research Centre, México

2285020 OPTICAL WAVEGUIDE WRITING IN PHOTOCHROMIC MATERIAL: PHOTOINDUCED OPTICAL PROPERTIES BY FEMTOSECOND LASER GUTIÉRREZ M.1, RODRÍGUEZ A.1, BALDERAS R.E.1, CAMACHO S.2, CANO M.2, ELIZALDE L.E.3, LEDEZMA R.3 1 Universidad Autónoma de San Luis Potosí/2Centro de Investigación Científica y de Estudios Superiores de Ensenada/3Centro de Investigación en Química Aplicada, Mexico

2285036 NONLINEAR SPECTROSCOPY OF ISOTROPIC AND ANISOTROPIC METALLIC NANOCOMPOSITES IN SILICA FERNÁNDEZ-HERNÁNDEZ R.C1, TORRES-TORRES C.2, CHEANG-WONG J.C.1, CRESPO-SOSA A.1, RODRIGUEZ-FERNÁNDEZ L.1, RANGEL-ROJO R.3, OLIVER A.1, REYES-ESQUEDA J.A.1 1 Instituto de Física, Universidad Nacional Autónoma de México/2Sección de Estudios de Posgrado e Investigación, ESIME-Z, I.P.N/3CICESE, Depto. de Óptica, México

2285216 CARRIER DYNAMICS AND NONLINEAR OPTICAL STUDY ON SEMICONDUCTORS PÉREZ-HERNÁNDEZ B. G.1, GARDUÑO-MEJÍA J.1, MORALES-SAAVEDRA O. G.1, CASTAÑEDAAVIÑA L.2, RODRÍGUEZ-ROSALES A. A.1, ORTEGA-MARTÍNEZ R.1 1 Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México/ 2 Instituto de Física, Benemérita Universidad Autónoma de Puebla, México 79

2285181 REAL-TIME SELF-REFERENCED PHASE RECONSTRUCTION PROPOSAL OF GHZ-BANDWIDTH NON-PERIODICAL OPTICAL PULSES BY IN-FIBER SEMI-DIFFERINTEGRATION CUADRADO-LABORDE C.1, ANDRÉS M. V.2, LANCIS J.3 1 Centro de Investigaciones Ópticas/2Universidad de Valencia/3Universitat Jaume I

2285377 PHOTOPHYSICAL PROPERTIES OF METALLICPHTHALOCYANINES DISPERSED IN SONOGEL OPTICAL GLASSES TORRES-ZÚÑIGA V.1, SÁNCHEZ-VERGARA M.E.2, MORALES-SAAVEDRA O.G.1, ALVAREZ C.2, BAÑUELOS J.G.1 1 Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, CCADET-UNAM/2Facultad de Ingeniería, Universidad Anáhuac

2285587 A MODEL FOR LIGHT TRANSMISSION THROUGH A THIN NONLOCAL-NONLINEAR MEDIA ARROYO CARRASCO M.L.1, MÉNDEZ OTERO M.M.1, REYNOSO L. E.2, CHÁVEZ-CERDA S.3, ITURBE CASTILLO M.D.3 1 Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla/2Facultad de Ciencias de la Electrónica, Benemérita Universidad Autónoma de Puebla/ 3Instituto Nacional de Astrofísica, Óptica y Electrónica, Mexico

2285720 RUNNING HOLOGRAM TECHNIQUE WITH ARBITRARILY FIXED PHASE COUPLING FOR HOLE-ELECTRON COMPETITION CHARACTERIZATION IN UNDOPED PHOTOREFRACTIVE TITANOSILLENITE CRYSTALS OLIVEIRA I. 1, FRESCHI A. A.2, FREJLICH J.1 1 Faculdade de Tecnologia-Universidade Estadual de Campinas – UNICAMP/2Universidade Federal do ABC

2285841 SYNTHESIZED NANO-RING STRUCTURES ON 4X2 GAAS SURFACES PROBED BY RAS AND STM ORTEGA GALLEGOS J, GUEVARA L.E, BALDERAS R.E, LASTRAS L.F, LASTRAS A. Instituto de Investigación en Comunicación Óptica, UASLP, Mexico

2285908 TWO-PHOTON TEMPORAL SELF-IMAGING TORRES-COMPANY V1, LANCIS J2, LAJUNEN H3, FRIBERG A.T.4 1 Purdue University, West Lafayette, IN, USA/2Universitat Jaume I, Castello, Spain/3University of Eastern Finland, Joensuu, Finland/4University of Eastern Finland, Joensuu, Finland; Aalto University, Espoo, Finland; Royal Institute of Technology (KTH), Kista, Sweden

2285962 QUADRUPOLAR SECOND-HARMONIC GENERATION BY HIGHERORDER GAUSSIAN BEAMS GONZALEZ M A, MAYTORENA J A 1 Posgrado en Ciencias Físicas, UNAM/2Centro de Nanociencias y Nanotecnología, UNAM, Mexico

2286006 NUMERICAL STUDY OF THE MEDIUM THICKNESS IN THE Z-SCAN TECHNIQUE 80

MARCELA MARIBEL MÉNDEZ OTERO M.M.M.O.1, MARCELO DAVID ITURBE CASTILLO M.D.I.C.2, MAXIMINO LUIS ARROYO CARRASCO M.L.A.C.1 1 Benemerita Universidad Autónoma de Puebla, Dependencia Facultad de Ciencias Físico Matemáticas 2 Instituto Nacional de Astrofísica, Óptica y Electrónica, dependencia Departamento de Óptica, Mexico

2286021 ENTANGLEMENT OF FORMATION OF A PAIR OF QUANTUM DOTS SÁNCHEZ-S. SERGIO S.S.1, SÁNCHEZ MONDRAGÓN J. J. J.J.2, GARCÍA-MELGAREJO J.C. J.C.2, ALEJO-MOLINA A. A.A.2 1 Institute for Energy Studies (IEE) of the University of Isthmus (UNISTMO) and Optics Department 2 Optics Department, National Institute of Astrophysics Optics and Electronics (INAOE) , México

2286071 STUDY OF LIGHT PROPAGATION IN RANDOM NANOPARTICLES ARRAYS. JUAREZ-MORALES J.C, MUNOZ-LOPEZ J, MARTINEZ-NICONOFF G. Instituto Nacional de Astrofisica, Óptica y Electrónica, México

2286083 PHOTOLUMINESCENCE PROPERTIES OF COPOLYMERS DERIVED OF 3-ALKYLTHIOPHENES AND THIOPHENES CONTAINING NLO CHROMOPHORES RUEDA-ANAYA C.M, CASTRELLÓN-URIBE J, GÜIZADO-RODRÍGUEZ M. Universidad Autónoma del Estado de Morelos, México

2286182 TUNING VISIBLE EMISSION LIGHT FROM ZNO QUANTUM DOTS OLIVA J.1, DE LA ROSA E.1, TORRE A.2, SALAS P.3 1 Centro de Investigaciones en Óptica A.C./2Universidad Autónoma de Nuevo León/3CFATA UNAM

Friday 19 9:00-10:00

Plenary 6

El Alto

Chair: Rufino Díaz-Uribe, CCADET-UNAM, México 2285429 A REVIEW OF ADAPTIVE OPTICS IN VISION SCIENCE CHRISTOPHER DAINTY National University of Ireland, Galway

10:15-11:45

FDI 9

Angelópolis

Fabrication, Design, and Instrumentation Chair: Gustavo Rodríguez-Zurita, BUAP, México Co-Chair: Myrian Tebaldi, CIOp, Argentina 10:15-10:45 2284586 FDI9 Invited Keynote 81

VECTOR-WAVE HOLOGRAPHIC OPTICAL MASS-STORAGE YATAGAI T, BARADA D. Utsunomiya University, Japan

10:45-11:00 2284611 FDI9 Oral IMPROVED ERROR-REDUCTION ALGORITHM FOR DESIGNING PHASE DIFFRACTIVE OPTICAL ELEMENTS AGUIRRE-OLIVAS D, ARRIZÓN V, SÁNCHEZ-DE-LA-LLAVE D Instituto Nacional de Astrofísica, Óptica y Electrónica

11:00-11:15 2286231 FDI9 Oral NONLINEAR ABBE THEORY BARSI C, LU CHIEN-HUNG, FLEISCHER J.W. Princeton University, USA

11:15-11:30 2285086 FDI9 Oral FRACTAL DIFFRACTION ELEMENTS WITH VARIABLE TRANSMITTANCE AND PHASE SHIFT MUZYCHENKO Y.B, ZINCHIK A.A, STAFEEV S.C, TOMILIN M.G. Saint-Petersburg State University of Information Technologies, Mechanics and Optics

11:30-11:45 2284971 FDI9 Oral GENERATION OF SPIRAL PATTERNS BY OBSTRUCTION OF BESSEL BEAM TOTO-ARELLANO N.I.1, MARTÍNEZ-GARCÍA A.1, RODRÍGUEZ-ZURITA G.2, RAYAS ÁLVAREZ J.A.1, SERRANO-GARCÍA D.I.1 1 Centro de Investigaciones en Óptica A.C./2Benemérita Universidad Autónoma de Puebla

12:00-13:30

FDI 10

Angelópolis

Fabrication, Design, and Instrumentation Chair: Jason W. Fleischer, Princeton University, USA Co-Chair: Victor Arrizón, INAOE, México 12:00-12:30 2285065 FDI10 Invited Keynote MICROLENSES FABRICATION ON GLASS BY COMBINING LASER WITH THERMAL-REFLOW TECHNIQUE M. TERESA FLORES-ARIAS Universidad de Santiago de Compostel

12:30-12:45 2285102 FDI10 Oral 82

FABRICATION OF A DEFORMABLE MIRROR OPTIMIZED FOR PULSE SHAPING QURESHI N, GÓMEZ-ARISTA I, GARDUÑO-MEJÍA J CCADET / Universidad Nacional Autónoma de México

12:45-13:00 2285669 FDI10 Oral PULSED LASERS IN PHOTOVOLTAIC TECHNOLOGY BARHDADI A.1, HARTITI B.2 1 PSES Laboratory, ENS-Rabat, University Mohammed V – Agdal/2LPMAER, Faculty of Sciences and Techniques, Mohammedia

13:00-13:15 2285950 FDI10 Oral METHOD OF PRODUCING TAPERED FIBERS VEGA F, TORRES C.O, MATTOS L. Universidad Popular del Cesar

13:15-13:30 2286190 FDI10 Oral MULTILAYER THIN FILM COATINGS FOR REDUCED INFRARED LOSS IN HOLLOW GLASS WAVEGUIDES BLEDT C.M, KOPP D.V, HARRINGTON J.A. Rutgers, the State University of New Jersey, Department of Materials Science & Engineering

10:15-11:45

OE 9

Violeta 1

Optical Engineering Chair: Toyohiko Yatagai, Utsunomiya University Co-Chair: Amalia Martínez-García, CIO, México 10:15-10:45 2285652 OE9 Invited Keynote HIGH-SPEED SPECKLE INTERFEROMETRY AND MULTIPOINT VIBROMETRY ANDREW J. MOORE Heriot-Watt University, School of Engineering and Physical Sciences, UK

10:45-11:00 2284483 OE9 Oral VIBRATION MEASUREMENT IN NON-RIGID TEST ENVIRONMENT WITH SPECKLE INTERFEROMETRY MATSUMOTO T.1, NAKAMOTO H.1, TAKIZAWA Y.1, KITAGAWA Y.1, KURATANI F.2, KOYAMA K.3, ADACHI M.4

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Hyogo Prefectural Institute of Technology/2Fukui University/3Koyama Hardware Co. Ltd/4Kanazawa University

11:00-11:15 2284585 OE9 Oral A DYNAMICAL LIGHT SCATTERING TECHNIQUE AND ITS APPLICATION IN VISCOELASTIC NETWORKS IN SOFT MATTER SARMIENTO-GÓMEZ E, GALVÁN-MIYOSHI J.M, CASTILLO R. Instituto de Física, UNAM

11:15-11:30 2284861 OE9 Oral PROBABILITY MAPPING IMAGES IN DYNAMIC SPECKLE PASSONI L.I.1, RABAL H.J.2, MESCHINO G1, TRIVI M.2 1 Laboratorio de Bioingeniería, Facultad de Ingeniería. Universidad Nacional de Mar del Plata, Juan B. Justo 4302. (7600) Mar del Plata, Argentina/2Centro de Investigaciones Ópticas (CONICET La Plata-CIC), UID Optimo, Departamento de Ciencias Básicas, Facultad de Ingeniería. Universidad Nacional de la Plata, P.O. Box 3, 1897, Gonnet, La Plata, Argentina

11:30-11:45 2285711 OE9 Oral TEMPORAL AND SPATIAL VIBRATION MEASUREMENT BY HIGH SPEED OPTICAL INTERFEROMETRY GUTIERREZ-HERNANDEZ D.A.1, PEREZ-LOPEZ C.1, MENDOZA-SANTOYO F1, MIXTECOSANCHEZ J.C.2 1 Centro de Investigaciones en Óptica A.C./2Unidad Profesional Interdisciplinaria de Ingenierías campus Guanajuato - Instituto Politécnico Nacional

12:00-13:30

OE 10

Violeta 1

Optical Engineering Chair: Héctor J. Rabal, CIOp, CONICET, La Plata-CIC, Argentina Co-Chair: Ivan Moreno, Universidad de Zacatecas, México 12:00-12:30 2285936 OE10 Invited Keynote SPECKLE DISPLACEMENT IN 3-D SPACE AND APPLICATIONS ICHIROU YAMAGUCHI Toyo Seiki, Gunma University, Japan

12:30-12:45 2284642 OE10 Oral INTERFEROMETRY-LIKE IMAGE CONTOUR DETECTION GUSTAVO RODRÍGUEZ MORALES Universidad Autónoma de Nuevo León, México 84

12:45-13:00 2284796 OE10 Oral MONTE CARLO METHOD FOR EVALUATION OF UNCERTAINTY IN TOPOMETRY BY USING IN-PLANE ELECTRONIC SPECKLE PATTERN INTERFEROMETRY WITH DIVERGENT ILLUMINATION MARTINEZ AMALIA, PARRA-MICHEL JORGE, CORDERO RAUL CIO, México

13:00-13:15 2286186 OE10 Oral DIGITAL IMAGE CORRELATION METHOD: A VERSATILE TOOL FOR ENGINEERING AND ART STRUCTURES INVESTIGATIONS KUJAWINSKA M.1, MALESA M.1, PIEKARCZUK A.2 TYMIńSKA-WIDMER L.3, MALOWANY K.1, TARGOWSKI P.4 1 Warsaw University of Technology, Institute of Micromechanics and Photonics, 02-525 Warsaw, 8 Sw. A. Boboli St., Poland/2Building Research Institute, 00-611 Warsaw, 1 Filtrowa St., Poland/3Institute for the Study, Restoration and Conservation of Cultural Heritage, Nicolaus Copernicus University, Ul. Gagarina 7, 87-100 Toruń, Poland/4Institute of Physics, Nicolaus Copernicus University, ul. Grudziądzka 5, PL-87 100 Toruń, Poland

13:15-13:30 2286189 OE10 Oral UNIFIED THEORY OF PHASE UNWRAPPING APPROACHES IN MULTIWAVELENGTH INTERFEROMETRY FALAGGIS K, P. TOWERS D, E. TOWERS C. School of Mechanical Engineering, University of Leeds

10:15-11:45

BMO 4

Violeta 2

Bio-Medical Optics Chair: Gert Von Bally, Muenster University, Germany Co-Chair: Heriberto Márquez, CICESE, Mexico 10:15-10:45 2284782 BMO4 Invited Keynote MICRO-JOULE, PICO-SECOND RANGE, YB3+-DOPED FIBRE LASER FOR MEDICAL APPLICATIONS IN ACUPUNCTURE ALVAREZ-CHAVEZ J.A.1, RIVERA-MANRIQUE S.I.1, JAQUES S.L.2 1 CIITEC-IPN/2OREGON HEALTH STATE UNIVERSITY

10:45-11:00 2285234 BMO4 Oral

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DATA ACQUISITION INTERFACE FOR FREQUENCY DOMAIN PHOSPHORESCENCE LIFETIME DETECTION LAI B1, LILGE L2 1 University Health Network/2University of Toronto/University Health Network

11:00-11:15 2285502 BMO4 Oral OPTICAL SYNAPSE R. JAIMES-REATEGUI R.J.R.1, A. N. PISARCHIK A.N.P2, R. SEVILLA-ESCOBOZA R.S.E.1, V. B. KAZANTSEV V.B.K3, J. H. GARCÍA-LÓPEZ J.H.G.L.1, G. HUERTA-CUELLAR G.H.C.1, C. E. CASTAÑEDA-HERNANDEZ C.E.C.H.1, D. LOPEZ MANCILLA D.L.M1 1 Centro Universitario de Los Lagos, Universidad de Guadalajara, Enrique Díaz de León 1144, Paseo de la Montaña, Las de Moreno, Jalisco, México/2Centro de Investigaciones en Óptica A.C./3Institute of Applied Physics of RAS, Uljanov Str. 46, 603950, Nizhny Novgorod, Russia

11:15-11:30 2284608 BMO4 Oral REFLECTION SPECTRA OF BREAST ADIPOSE TISSUE VS HISTOLOGIC GRADE MUNOZ MORALES A,A1, VAZQUEZ Y MONTIEL S.1, REIGOSA A.2 1 Grupo de Instrumentación de Óptica Biomédica, Coordinación de Óptica, Instituto Nacional de Astrofísica Óptica y Electrónica/2Laboratorio de Ultraestructura, Centro de Investigaciones Médica y Biotecnológica de la Universidad de Carabobo, Valencia, Venezuela

11:30-11:45 2286178 BMO4 Oral LANGMUIR BLODGETT METHODOLOGY FOR METALLIC NANOPARTICLE SUBSTRATES PREPARATION FOR SERS APPLICATIONS PÉREZ-MAYEN L.P.M.1, DE LA ROSA E.R.C1, CASTILLO F.C.2, CALIXTO-CARRERA S.A.C.C.1 1 Centro de Investigaciones en Óptica A.C/2Universidad Autónoma de San Luis Potosí

10:15-11:45

POE 8

Oriental

Photonics and Opto-Electronics Chair: Carlos Gómez Reino, Universidad de Santiago de Compostela, Spain Co-Chair: Héctor Moya Cessa INAOE, México 10:15-10:45 2284948 POE8 Invited Keynote OPTICAL MATERIALS STUDIES BY RADIOPHYSICS METHODS LARKIN A,I, SHSCEPINOV V.P. National Research Nuclear University MEPhI

10:45-11:00 86

2283170 POE8 Oral RE-DOPED FIBRE LASER SOURCES FOR SPEED MEASUREMENT IN THREEPHASE MOTOR APPLICATIONS CERRANO-HERNANDEZ I, CRUZ CONTRERAS A, ALVAREZ-CHAVEZ J.A CIITEC-IPN, México

11:00-11:15 2284542 POE8 Oral WAVEGUIDES BY MULTIPLE IMPLANTATIONS OF AG ION ON SIO2 SUBSTRATES MARQUÉZ H.1, SALAZAR D.1, RANGEL R.1, OLIVER A.2, FLORES E.2, ANGEL J1 1 CICESE/2IFUNAM, México

11:15-11:30 2285255 POE8 Oral FROM FEMTOSECOND LASER PULSES TO A SUPERCONTINUUM VISIBLE LASER SOURCE RAMÍREZ GÓNGORA O.DEJ.1, SOLARTE RODRÍGUEZ E.2 1 Pontificia Universidad Javeriana-Cali/2Universidad del Valle

11:30-11:45 2285926 POE8 Oral DEVELOPMENT AND ANALYSIS OF A SIMPLE TUNABLE ERBIUM RING LASER GIORDANA A, DUCHOWICZ R. Centro de Investigaciones Ópticas (CIOp), Argentina

10:15-11:45

OIS 8

Constancia

Optical Interaction Science Chair: Zohra Ben Lakhdar, University of Tunisia Co-Chair: Héctor Cerecedo-Núñez, Universidad Veracruzana, México 10:15-10:45 2283996 OIS8 Invited Keynote EFFECTS OF PRIMARY SPHERICAL ABERRATION, COMA, ASTIGMATISM AND FIELD CURVATURE ON THE FOCUSING OF ULTRASHORT PULSES GONZÁLEZ-GALICIA M.A, ROSETE-AGUILAR M, GARDUÑO-MEJÍA J, BRUCE N.C, ORTEGAMARTÍNEZ R. Universidad Nacional Autónoma de México, CCADET

10:45-11:00 2284843 OIS8 Oral PROPAGATION OF ULTRASHORT PULSES BEHIND DIFFRACTING SCREENS PIKSARV P.1, BOWLAN P.2, LõHMUS M.1, VALTNA-LUKNER H.1, TREBINO R.2, SAARI P.1 87

1

Institute of Physics, University of Tartu, Estonia/2School of Physics, Georgia Tech, GA, USA

11:00-11:15 2285868 OIS8 Oral STUDY OF A FIGURE-EIGHT LASER GENERATING NOISE-LIKE PULSES WITH ADJUSTABLE CHARACTERISTICS POTTIEZ O.1, HERNANDEZ-GARCIA J.C.1, IBARRA-ESCAMILLA B.2, KUZIN E.A.2 1 Centro de Investigaciones en Óptica A.C./2INAOE, Mexico

11:15-11:30 2285363 OIS8 Oral FORMATION OF PARABOLIC OPTICAL PULSES IN PASSIVE OPTICAL FIBERS SUKHOIVANOV I.A.1, IAKUSHEV S.O.2, SHULIKA O.V.2, GURYEV I.V.1, ANDRADE LUCIO J.A.1, IBARRA MANZANO O.G.1 1 DICIS, University of Guanajuato/2Lab. Photonics, Kharkov Universityu of Radio Electronics, Ukraine

11:30-11:45 2286155 OIS8 Oral MODE-LOCKED FIBER LASER USING A FIBER DIRECTIONAL COUPLER HERNANDEZ-ROMANO I.1, ANTONIO-LOPEZ J.E.1, SANCHEZ-MONDRAGON J.J.1, DELFYETT P.2, MAY-ARRIOJA D.A.3 1 National Institute for Astrophysics, Optics and Electronics/2CREOL, The College of Optics & Photonics/3Universidad Autónoma de Tamaulipas

12:00-13:30

SS

Constancia

Science and Society Chair: Maria Yzuel, Universidad Autónoma de Barcelona (UAB), Spain Co-Chair: Eric Rosas, CENAM, México 12:00-12:30 2286206 SS Invited THE ROLE OF ICTP/UNESCO IN PROMOTING OPTICS EDUCATION AND RESEARCH WORLDWIDE JOSEPH NIEMELA ICTP

12:30-13:00 2286214 SS Invited WHY IS INTERNATIONAL RESEARCH IN SCIENCE AND ENGINEERING IMPORTANT? CARMIÑA LONDOÑO National Science Foundation, USA

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13:00-13:15 2286204 SS Oral WORLDWIDE SCIENTIFIC COLLABORATION AND NATIONAL INTELLECTUAL PROPERTY: HOW TO PUT THOSE THINGS TOGETHER? REINGAND N.1, STECH M.2 1 CeLight, Inc./2Office of Intellectual Property Rights, US Department of Commerce

13:15-13:30 2287000S SS Oral WEB 2.0 IMPLICATIONS FOR RESEARCHERS AND PUBLISHERS (THE SPRINGERLINK PLATFORM)

MOURIÑO DAVID, ARROYO INDRA SPRINGER, México

12:00-13:30

TO 4

Violeta 2

Theoretical Optics Chair: Karen Volke, IF-UNAM, México Co-Chair: Aurélie Le Cain, CEA CESTA, France 12:00-12:30 2285133 TO4 Invited Keynote PARTIAL COHERENCE AND POLARIZATION IN ELECTROMAGNETIC INTERFERENCE SETALA T.1, TERVO J.2, FRIBERG A.T.3 1 Aalto University/2University of Eastern Finland/3Aalto University, University of Eastern Finland, Royal Institute of Technology

12:30-12:45 2283820 TO4 Oral COHERENCE AND POLARIZATION CONTROL USING TWISTED NEMATIC LIQUID-CRYSTAL SPATIAL LIGHT MODULATORS RICKENSTORFF C, FLORES E, OSTROVSKY A.S. Universidad Autónoma de Puebla, México

12:45-13:00 2283992 TO4 Oral EXACT MODELING OF PROPAGATION OF PARTIALLY COHERENT OPTICAL FIELDS CASTAÑEDA R, GARCÍA-SUCERQUIA J Physics School, Universidad Nacional de Colombia Sede Medellín

13:00-13:15 2283611 TO4 Oral GENERATION OF A SPIRAL WAVE USING AMPLITUDE MASKS 89

ANGUIANO M.A, SALAS D.S, TRUJILLO G.T Instituto Tecnológico de Chihuahua, México

13:15-13:30 2285072 TO4 Oral RESUMMING DIVERGENT SERIES IN NONPARAXIAL OPTICS BORGHI R.1, GORI F.2, GUATTARI G.1, SANTARSIERO M.2 1 Dipartimento di Elettronica Applicata, Università "Roma Tre"/2Dipartimento di Fisica, Università "Roma Tre"

12:00--13:30

AOA

Oriental

Applied Optics to Artwork Chair: Maxim Tomilin, Saint-Petersburg State University of Information Technologies, Mechanics, and Optics, Russia Co-Chair: Sabino Chávez, INAOE, México 12:00-12:30 2285894 AOA Invited Keynote XOCHICALCO: TLAYOHUALCHIELIZTLI OR CAMERA OBSCURA CORNEJO-RODRÍGUEZ A.1, VÁZQUEZ-MONTIEL S.1, GRANADOS-AGUSTÍN F.1, GALEA D.1, DIAMANT R.2, ESPINASA-PERENA R.3, CRUZ J.L.4, FERNÁNDEZ-GUASTI M.2 1 Instituto Nacional de Astrofísica, Óptica y electrónica, Puebla, MEXICO 2 Universidad Autónoma Metropolitana - Iztapalapa, 09340 México D.F., Ap. postal. 55-534, MEXICO 3 Universidad Nacional Autónoma de México, Instituto de Geofísica, México D.F., MEXICO 4 Instituto Nacional de Antropologia e Historia, Xochicalco, Morelos, México

12:30-12:45 2286157 AOA Oral ANALYSIS BY LIBS OF ARCHAEOLOGICAL OBJECTS FROM ANCIENT PERUVIAN CULTURES ASMAD MIGUEL1, SÁNCHEZ RUBÉN1, BALDWIN GUILLERMO1, CASTILLO LUIS JAIME2, ALDAMA WILDER3, MORALES RICARDO4, UCEDA SANTIAGO4 1 Pontificia Universidad Católica del Perú / Laboratorio de Óptica, Departamento de Ciencias, Sección Física 2 Pontificia Universidad Católica del Perú / Programa Arqueológico San José de Moro 3 Universidad Nacional de Trujillo - Perú / Laboratorio de Óptica y Láser (LOYL) 4 Universidad Nacional de Trujillo - Perú / Proyecto Arqueológico Huaca del Sol y de la Luna

12:45-13:00 2285535 AOA Oral LATTICE BASED MULTISPECTRAL IMAGE RESTORATION OF MEXICAN ANCIENT CODICES VALDIVIEZO N. J.C, URCID G, BAEZ J.J. 90

INAOE, México

13:00-13:15 2285304 AOA Oral SPACIAL LOCATION OF REFERENCE POINTS FOR THE STUDY IN 360° OF AN OBJECT USING STEREO VISION FLORES V.H1, MARTÍNEZ A.1, RAYAS J.A.1, GENOVESE K.2 1 Centro de Investigaciones en Óptica/2Università degli Studi della Basilicata

13:15-13:30 2285848 AOA Oral NUMERICAL RECONSTRUCTION OF SPECTRAL REFLECTANCE CURVES OF OIL PAINTING ON CANVAS VALDIVIESO L.G.1, GUERRERO J.E.2, OSORIO C.A.2 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Universidad industrial de Santander

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ABSTRACTS

Monday 15 Plenary 1 2285662

Speckle contrast measurement with low light levels and imperfect laser illumination GOODMAN J.W, FENG Y. Stanford University

In this paper, we examine the contrast of speckle caused by a cascade of three stochastic phenomena. An optically rough object is assumed to be illuminated by an imperfect laser, and the scattered light is detected by a photoevent-counting detector or an array of such detectors. The contrast of the measured photoevent speckle is then calculated. Various models of imperfect lasers are used for the light source, including a laser oscillating in a multitude of independent modes, a laser that produces Rician intensity statistics (as predicted if the laser output consists of both stimulated emission and a component of spontaneous emission), and a laser that produces intensity statistics predicted by the Risken model. The scattering object is assumed to have a roughness that is large compared with a wavelength. A semiclassical model is used for photoevent detection. A central result of the analysis is a simple expression for the contrast of the detected photoevents in terms of the contrast of the classical speckle intensity and the total photoevent flux detected in the measurement. When the photoevent flux is large, the contrast of the photoevents is approximately equal to the classical speckle intensity contrast. Under such conditions, the statistics of the imperfect laser illumination generate departures from the usual behavior of speckle. We examine how this departure depends on the statistical properties of the laser illumination, as well as on the ratio of the measurement time to the coherence time of the light. Given a particular model for laser illumination, measurement of speckle contrast can give information about the statistical properties of the illumination. These results are of particular interest in the case of X-ray lasers for which the statistical properties of the output are not yet perfectly characterized, and the detectors are of the photoevent-counting type.

OIS 1 Optical Interaction Science 2285956

Mie-scattering of light with orbital angular momentum by nanoparticles ACHARYA P., GUZMÁN A.M. Florida Atlantic University

The scattering and absorption of plane waves by a spherical object is described by Mie theory [1], which has attracted recent interest for the study of scattering properties by metallic nanoparticles and nano arrays. In the Mie-Scattering theory the field scattered by spherical particles is expressed in the form of a multipole expansion whose order and coefficients depend on the size of the particle. The theory has been recently applied to study the field scattered by metallic nanospheres large enough to support multipolar modes [2] and to obtain scaling laws for plasmonic resonances in nano-antennas [3]. We study here the scattering of light with orbital angular momentum (OAM) by nanoparticles. OAM waves are solutions of the paraxial wave equation that carry well defined orbital angular momentum about the paraxial beam axis. The multipole expansion for scattered OAM waves depends on the localized surface plasmon modes that can couple to incident light carrying a well defined amount of azimuthal charge (or l-number) at a particular wavelength. We study here the properties of on-axis scattering of OAM waves by nanoparticles located at the beam waist as a function of the size of the particle and of the frequency and content of azimuthal charge of the incident wave. [1] G. Mie, Ann. Phys. 330, (3), 377–445, (1908). [2] Christopher P. Burrows and William L. Barnes, Optics Express 18, 3187 (2010). [3] G. B. Bryant, F. J. De Abajo, J. Aizpurua, Nano Letters 8, 631-636, (2008).

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2284661

Dependence of the local enhancement of electromagnetic fields on the illumination direction KHAKIMOV R., SHEVCHENKO A., KAIVOLA M Aalto University

We consider nanogroove and nanopillar structures made of silver and gold on a dielectric substrate. The structures are designed to provide a strong local enhancement of electric and magnetic fields for applications in fluorescence and Raman spectroscopy. Our calculations show that the light propagation direction can significantly influence the transmittance spectra of the structure and the field enhancement factor. These characteristics depend on the way the light is incident on the sample, from the top or from the bottom. The calculations are based on finite element method and include both periodic and non-periodic geometries. As an example of modelled geometries, we consider gratings and pillar arrays in which a thin layer of gold (30 nm) is deposited on a quartz lattice. Transmittance spectra of such structures demonstrate the notable difference when illuminated from the top and from the bottom. The effect described can provide more flexibility for the design of nanostructured optical components.

2284698

Enhancement of Si nanocrystals photoluminescence in presence of Ag nanoparticles BORNACELLI J., REYES-ESQUEDA J.A., RODRIGUEZ-FERNÁNDEZ L, SILVAPEREYRA H.G., OLIVER A Instituto de Física, Universidad Nacional Autónoma de México

Enhancement of Si Nanocrystals Photoluminescence in Presence of Ag Nanoparticles Bornacelli J., ReyesEsqueda J.A., Rodríguez-Fernández L., Silva-Pereyra H.G., and A. Oliver* Instituto de Física, Universidad Nacional Autónoma de México, México, D. F. 04510, México. *E-mail: [email protected] Plasmonics is the most promising field appointed to continue the predictions of the Law of Moore as well as for the confinement of light on a subwavelength spatial scale, allowing the breaking of the diffraction limit. In that direction, we have produced by ion implantation, interesting nanocomposites with very attractive optical properties. Recently, a double implantation of Si and Ag ions in silica, with subsequent thermal treatments in appropriated atmospheres, allowed us to obtain two layers: one of Si nanocristals (NCs) and other of Ag nanoparticles (NPs). This arrangement shows an enhancement of the emission of Si nanocrystals (NCs) in a new, totally integrated configuration. The synthesis of the system by ion implantation offers a total protection of the optical active agents from environmental effects such as oxidation, additionally assuring a high degree of homogeneity. We present a photoluminescence excitation study (420-500 nm) of Si NCs with and without the presence of Ag nanoparticles (NPs), both embedded in a matrix of SiO2. The level of saturation for Si NCs is independent of the excitation wavelength, but for Si NCs in the presence of Ag NPs, a saturation level arises for excitation wavelengths near the absorption band of the surface plasmon resonance of the Ag NP (325-475 nm). The increase of both, the values of saturation and excitation cross-section of Si NCs in the presence of Ag NPs, is an evidence of the optical interaction between the metal NPs and Si NCs studied in this work. This suggests a decrease of the lifetime of Si NCs photoemission due to the interaction with the Ag NPs.

2285671

Enhancement of ALPHA-AL203:C photoluminescence when doped with au nanoparticles MÉNDEZ-RESÉNDIZ L.C.1, JIMÉNEZ-HERNÁNDEZ J.L.1, MOTA-SANTIAGO P.E.1, CRESPO-SOSA A.1, REYES-ESQUEDA J.A.1, OLIVER A.1, BARBOZA-FLORES M.2 1 Instituto de Física, Universidad Nacional Autónoma de México/ 2Universidad de Sonora, Departamento de Investigación en Física

Enhancement of alpha-Al203:C photoluminescence when doped with Au Nanoparticles L.C. MéndezReséndiz1, J.L. Jiménez-Hernández1, P.E. Mota-Santiago1, A. Crespo-Sosa1, J.A. Reyes-Esqueda1, A. Oliver1, M. Barboza-Flores2 1Instituto de Física, Universidad Nacional Autónoma de México, México, D. F. 93

04510, México 2Universidad de Sonora, Departamento de Investigación en Física, P. O. Box 5-088, Hermosillo, Sonora, 83190, México [email protected] Plasmonic effects are a current research topic. Near-field enhancement of some physical property is sought when thinking in different kinds of applications. In our case, alpha-Al203:C crystals have been long used in dosimetry because of their thermal and optically stimulated luminescence responses. In this work, we have embedded Au nanoparticles into these dosimeters by using ion implantation and the appropriate thermal treatment. As a consequence, when measuring the photoluminescence from the crystals with and without the presence of the Au nanoparticles, exciting in the range 210-410 nm with ps pulses, we observed primary emission maxima centered at 328 and 410 nm, but also secondary emission maxima centered at 260 and 640 nm. The maxima at 260, 328 and 410 nm are attributed to F+ defects for the two first bands, and to F defects for the third one. Because of the carbon, the 410 nm band is the dominant one. We have observed a 5-fold enhancement of the photoluminescence for the two main emission bands, 328 and 410 nm, in the sample with Au NPs. We are trying to determine whether this enhancement is due to an increment in the number of the related defects because of the NPs presence or is rather a plasmonic effect.

2285318

Optical characteristics of thin film molybdenum oxides induced by ultrashort laser pulses CANO M.1, CAMACHO S.1, CAMACHO M.A.2, ESPARZA A.3 1 CICESE-Departamento de Óptica/ 2UAEM-Facultad de Química/ 3UNAM-Fotofísica y Películas Delgadas

There exists a good amount of work on obtaining metallic oxide thin films by using conventional heat treatment; metallic oxide thin films can also be obtained by laser irradiation when using either cw or pulsed lasers. Only a few amount of work has been published for laser-induced metallic oxides for short pulses (nanosecond) and non for ultrashort (picosecond-femtosecond) pulses laser irradiation. The direct laser writing technique offers great advantages, since it allows to laser-induced specific stoichiometry and phase transformation when working with metallic films; related features to the laser-induced metallic oxide formation are a high spatial resolution and very short processing time. Hence the great interest of using the laser technique for manufacturing metallic oxides. In this work, we present experimental results of laser irradiation, in atmospheric air, of crystalline molybdenum (Mo) thin films (500nm thickness) deposited on glass substrates. We used femtosecond Ti: Sapphire laser (800nm) pulses of 60 fs duration, at a high repetition rate (70MHz), and low energy per pulse (around 6nJ) to laser-induce MoOx. We exposed the Mo films to a series of pulse trains, with exposure times from 2 seconds and up to 20 minutes long; the fluence per pulse was set between 0.5-1.5 mJ/cm2. Our results show how the directly laser affected area and its surroundings turns into a pattern of several concentric rings each of different color. This laser-transformed area was characterized by using micro-Raman spectroscopy. It was found that as a result of the laser irradiation of the Mo, we obtain MoOx with a variety of stoichiometries, and that it synthesizes in different crystalline phases. On the technological side, Molybdenum oxides have many applications, for example, in devices such as cathodes for rechargeable lithium microbatteries, catalysis and gas sensors through its gasochromic properties.

OIS 2 Optical Interaction Science 2286179

One pot synthesis of FE3O4 magnetic nanoparticles by precipitation method. PÉREZ-MAYEN L.P.M.1, CHAMÉ-FERNÁNDEZ K.C.F.1, DE LA ROSA E.R.C.1, TORRES A.T.2 1 Centro de Investigaciones en Óptica A.C/ 2FIME, Universidad Autónoma de Nuevo León

There are several methods for chemical synthesis of iron oxide nanoparticles. Conventional methods usually take a lot of time and many steps to obtain good quality on nanoparticles. In this work, we show an alternative path to prepare this kind of nanoparticles with small size and homogenous shape. This new method is very simple, low consuming time and easy to implement and scale up. The procedure of the reaction involves the 94

hydrolysis and oxidation of ferric chloride, and under low temperature reaction. The shape and size of nanoparticles is controlled by polymer surface modifier (PVP), the violent reaction produced when sodium borohydride is added in the reaction produce the magnetic structure in the nanoparticles obtained. Following the proposed methodology, we have obtained magnetic nanoparticles with sizes ranging from 5 to 10 nm. This particle size improves the magnetic response and is important for biology applications. The small size of the particle gives the possibility of growing a shell around the particle with optical properties either scattered light or luminescence. The growing and size control of the crystals was obtained modifying the rate of addition of polymer surface modifier. The Magnetic nanoparticles obtained were characterized by high resolution transmission microscope and magnetic response proves.

2284851

Surface plasmon propagation in novel multilayered metallic thin films FERRI F.A.1, RIVERA V.A.G.1, SILVA O.B.1, ZANATTA A.R.1, BORGES B.-H.V.2, MAREGA JR. E.1, WEINER J1. 1 Instituto de Física de São Carlos/USP/Brazil/ 2Departamento de Engenharia ElétricaEESC/USP/Brazil

Multilayered Ag/Au/Ag/Au and Au/Ag/Au/Ag films with 200 nm of thickness (50 nm for each layer), as measured by a Talystep profilometer, were evaporated onto BK7 glass substrates. Sequences of slits (with 50, 100 and 150 nm nominal widths) were milled with a FEI focused-ion beam (Ga+ ions, 30 keV) in the films. The lateral dimension of the slits with 100 nm of width was varied in the range of 5−20 μm. We have undertaken a series of high-resolution measurements of the optical transmission through the series of slits arrays. The transmission measurement setup consists of a 488.0 nm (for the Ag/Au/Ag/Au film) and a 632.8 nm (for the Au/Ag/Au/Ag sample) wavelength light beam from an Ar ion and a HeNe laser, respectively, aligned to the optical axis of a microscope. The beam is focused onto the sample surface by a microscope objective in TM polarization (magnetic H-field component parallel to the long axis of the slits). Light intensity transmitted through each slit array is then gathered by an optical fibre and detected with a chargedcoupled device (CCD) array detector. The transmitted intensity of each slit was recorded in the far-field by the CCD as the sample was stepped using an X-Y translation stage. The origin of this transmission is attributed to collective conduction band electron oscillations in response to the electrical field of the electromagnetic radiation of light. The optical absorption of the metallic film creates a localized surface plasmon (LSP) that can propagate in the slits (resonance cavities) and probably enhance their transmission, depending on the slit geometric dimensions and film structure. As well, we have performed computer simulations carried out with COMSOL Multiphysics investigating the slits optical transmission and comparing to experiment. It is valuable to notice that a very good correspondence between theory and experiment was observed.

2285090

Partial spatial coherence and polarization properties of surface-plasmon fields NORRMAN A.1, SETALA T.1, FRIBERG A.T.2 1 Aalto University/ 2Aalto University, University of Eastern Finland, Royal Institute of Technology

Plasmonics constitutes an increasingly important part of nanophotonics. Evanescent waves [1] and surfaceplasmon polaritons are manifestly non-beam-like, three-dimensional (3D) fields, thus necessitating novel tools of analysis and exhibiting new coherence and polarization phenomena. In this work, we analyze the spatial (spectral) coherence and polarization properties in fluctuating surface-plasmon fields generated at a lossy, thin metal film surrounded on both sides by air. By making use of rigorous electromagnetic interactions at the interfaces and the theory of optical coherence in 3D fields, we demonstrate how the coherence length is affected when the thickness of the slab, and the number of modes constituting the field, are changed. In particular, we show that the coherence length can be very long, even several thousands of wavelengths, at certain frequencies. Thus, the plasmon excitations mediate long-distance near-field correlations. An increased number of slab modes generally leads to a reduction of the coherence length, much as in multimode lasers. 95

The spatial coherence properties play a role in diffractive manipulations of surface-plasmon waves. By using a recent 3D formulation, we also examine the degree of polarization in such random surface-plasmon fields. We show that the field may be partially polarized at sub-wavelength distances, even though it is fully polarized farther away from the metal slab. The results on coherence and polarization are important in modern nanophotonic applications, in which optical interactions are frequently carried by plasmon waves. Examples of such applications include plasmon waveguides, integrated photonic signal-processing systems, subwavelength optical imaging techniques, and nanoscale focusing of light. [1] A. Norrman, T. Setälä, and A.T. Friberg, ―Partial spatial coherence and partial polarization in random evanescent fields on lossless interfaces‖, J. Opt. Soc. Am. A (in press, 2011).

2285121

Observation of surface plasmons in an Al-coated snom tip PALM V., RäHN M., HIZHNYAKOV V. Institute of Physics, University of Tartu

Spectral features of a broadband light transmitted by a subwavelength aperture (SWA) terminating a tapered metal-coated tip of a multimode optical fiber (a 200 nm SNOM tip) have been investigated experimentally. Under certain conditions a remarkable spectral modulation of the transmitted light can be observed [1]. A noticeable modulation appears when the number of the transmitted fiber modes is small but exceeds unity, and can be attributed to phase shifts between different modes. Of our special attention was the regular modulation observed in the 800 nm spectral region manifesting the phase difference between the two modes passing the SWA. In order to establish the origin of this phase shift we performed a series of spectral measurements while gradually reducing the fiber length from 770 to 240 mm. It appears that the observed phase shift consists of two clearly distinguishable contributions: the shift in the non-coated multimode fiber and the shift in the metal-coated tapered region close to SWA. The first one is the result of the inherent modal dispersion of the fiber. The second one is due to the mode-dependent contribution of surface plasmon polaritons: one of the two modes couples to the plasmons stronger than the other one, resulting in a remarkable relative slowdown. The modal dispersion actually changes its sign in the SNOM tip. This can be considered as an expected phenomenon: the phase velocity of the mode that is mostly plasmon-like (and slower) in the metal-coated tip region should be higher in the uncoated fiber region due to its stronger presence in the fiber cladding, which has a lower refractive index. 1. M. Rähn, M. Pärs, V. Palm, R. Jaaniso, V. Hizhnyakov, Opt. Commun. 283 (2010) 2457.

2286015

Shape and size controlled visible photo-chemical synthesis of silver nanoparticles UPENDRA KUMAR K.1, CARDOSO-ALIVA P.E.2, PICHARDO-MOLINA J.L.2 1 Division de ciencias e ingenierías, Universidad de Guanajuato. Campus león, León Gto, México/ 2Centro de Investigaciones en Óptica A. C., León Guanajuato, México.

Silver nanoparticles (NPs) and their assemblies find application in various fields such as high-sensitivity biomolecular detection for diagnostics, antimicrobial, catalysis, micro-electronics, among others. Since all these applications rely on the resonant behavior of localized surface plasmons, they are restricted to a limited frequency range determined by the dielectric functions of the involved media, the size and shape of the particles, and the electromagnetic interaction between them [1]. Different Chemical, electrochemical and photochemical reduction methods have been reported to produce silver NPs. However, very few of them have been successful in controlling simultaneously both the size and morphology of the products. In this paper, we focus on the effect of excitation wavelength, surfactants and aminoacids for the preparation of silver nanoparticles. We employed various visible frequency lines as the exciting light source to irradiate the growth solution containing silver nanoseeds, silver ions, and citrate ions. As the growth proceeds, the maximum absorption peak shifts to longer wavelength, until at some point the entire process stops. We found that both size and shape were influenced by the wavelength of the light, concentrations of surfactants, amino acid and also on the PH of the precursor solution. All the parameters were optimized to obtain desired and stable silver

96

NPs. References [1]. A. M Schrand, L. K. Braydich-Stolle, J. J. Schlager, L. Dai and S. M. Hussain, Nanotechnology 19 (2008) 235104-1-13.

FDI 1 Fabrication, design and instrumentation 2285382

Rules for optical metrology STAHL H.P. NASA

Paper will define the four metrology rules used to test the James Webb Space Telescope (JWST) flight mirrors and give examples of how the rules were applied in practice.

2284915

Some of testing methods of surface parameters of nonimaging mirror segments SCHOVANEK P., HRABOVSKY M., PALATKA M., PECH M., MANDAT D., NOZKA L., HIKLOVA H. Joint Laboratory of Optics, Institute of Physics of AS CR

Short view of testing methods usually applied by Joint Laboratory of Optics in Olomouc for manufacturing of large area mirror segments for nonimaging optical detectors, is presented. Authors put mind to testing of specific characteristics of the reflecting surfaces advanced for the optical detectors for wavelengths from 170 to 300 nm. Listed plots and graphs of measurement results were obtained from testing of square mirror segments advanced for mirror system for RICH detector. 1. Testing of the shape of reflecting surfaces For the surface shape illustration is usually used a variant of Ronchi or Hartmann test. The conventional parameter for selection of segments is the size of the spot diameter of reflected light. 2. Quality testing of active surfaces polishing a. The basic method of testing is visual control. In this method is a tested surface observed by a magnifier in intensive angle lighting. Despite the certain restrictions is this method in the process of manufacturing practically irreplaceable. b. The instrument Form Talysurf 2 is used in mechanical measurements of surface roughness. c. The optical methods based on scattered light measurement are highly precise and sensitive. In laboratory measurement is used Complete Angle Scatter Instrument (CASI). In manufacturing practice is used instrument μSCAN. 3. Testing of reflecting layers a. An impurities, surface scratches and digits which are under systems of reflecting layers are easily found by visual control. b. The point perforations in layers are simple to control by using intensive backside lighting. c. For testing of adhesion is used The Scotch Tape Test. d. The absolute reflectivity is measured on control samples produced together with the segments. e. The surface distribution of reflectivity is measured by comparison reflectometer in many points. f. The scattering characteristics of thin films surfaces are measured by CASI.

2285697

Measurement of absolute optical thickness by wavelength tuning interferometer HIBINO K1, KIM Y2, BITOU Y1, MITSUISHI M3 1 National Institute of Advanced Industrial Science and Technology/ 2Korean Institute of Machinery and Materials/ 3University of Tokyo

Absolute optical thickness is a fundamental parameter for the design of optical elements. In semiconductor industry, it is necessary to measure the absolute optical thickness of the central part of the projection lenses with a high accuracy. However, even when the geometrical thickness is perfectly known, a typical refractive index of fused-silica has an ambiguity of 6 x 10-5 that gives an uncertainty of 180 nm in the optical thickness for a 3 mm-thick plate. Moreover, the optical thickness measured by white light interferometry and wavelength tuning interferometry is an optical thickness with respect to not the ordinary refractive index but the group refractive index. We measured the ordinary optical thickness of a fused silica plate of 6-inch square and 3 mm thickness by a wavelength tuning interferometer with a tunable phase shifting technique. We assumed the typical refractive index of the fused silica as approximate values. The absolute interference order for the optical thickness was finally estimated, which gives a measurement resolution of typically 10 nm for the optical thickness. The phases of the surface shape and the optical thickness were measured simultaneously 97

and separated in frequency space. We used a new class of phase-shifting algorithms that optimized for maximum tolerance against frequency detuning due to material dispersion and scanning nonlinearities, as well as for suppression of noise from other frequencies [1]. [1] K.Hibino, J.Burke, R.Hanayama, and B.F.Oreb, Opt. Exp.12, 5579-5594 (2004).

2285978

Lateral shear for phase-shifting interferometry ROBLEDO-SÁNCHEZ C. I.1, MENESES-FABIAN C.1, AREVALO-AGUILAR L.M.1, NANCO-HERNÁNDEZ P.2, IXBA-SANTOS V.1, RODRÍGUEZ-ZURITA G.1, CORDERODÁVILA A.1 1 Fac. Ciencias Físico Matemáticas, BUAP./ 2Fac. Ciencias de la Electrónica, BUAP.

Phase-shifting interferometry is a reliable technique for extracting phase information from interferograms. The phase-shifting technique is achieved by small fine movements of a piezoelectric element attached to one of the mirrors of the Michelson interferometer. Usually this piezoelectric expands or contracts when an external voltage is applied on it. The phase shift method has been implemented in many common interferometers, for instance the Twyman-Green, the Mach-Zender and the Fizeau interferometers. In this work we propose an alternative method to get phase shifting, in which we apply a lateral movement to the point light source (used to illuminate the collimating lens), instead of moving the mirror. To the best of our knowledge, this phase-shifting technique has not been previously proposed or reported. Since the lateral shear interferometry takes the derivative of the wavefront, the tilt term of the wavefront becomes a constant term that is used to produce the phase-shift. Furthermore, we discuss experimental and simulated results using this lateral shear for phase-shifting interferometry.

2286168

Optical testing of the surface quality of a variable focal length lens with null-screens CAMPOS-GARCÍA M.1, SANTIAGO-ALVARADO A.2, MORENO-OLIVA V.I.3, DÍAZURIBE R.1 1 Universidad Nacional Autónoma de México, Centro de Ciencias Aplicadas y Desarrollo Tecnológico/ 2Universidad Tecnológica de la Mixteca/ 3Universidad del Istmo

The null-screen method has been used to test aspheric surfaces. This geometrical method measures the slope of the test surface and by a numerical integration procedure the shape of the test surface can be obtained. Now, in order to test the surfaces a variable focal length lens (VFLL) we propose use a conical null-screen. We present the formulae to design the null-screen in such a way that the image on the CCD is a perfect array of spots; departures from this geometry are observed as deformation of the surface. The VFLL is designed in such a way that under conditions of mechanical equilibrium both surfaces are spherical; however, its shape can be easily modified mechanically changing its radius of curvature. In order to analyze the shape of the surfaces of the VFLL at different radius of curvature, we evaluate its form using a conical null-screen. This procedure allows study the deformations of the surface. Finally, the advantages and limitations of the method will be discussed.

FDI 2 Fabrication, Design and Instrumentation 2285161

Dye deposition lithography – a versatile method for fabrication of optical fan-out devices CLARKE G1, PAVANI K1, ATHANASEKOS L2, MARTIN S1, VAINOS N2, TOAL V1, NAYDENOVA I1 1 Dublin Institute of Technology/ 2University of Patras, National Hellenic Research Foundation-NHRF

A novel method utilizing optical lithography and digital printing for fabrication of optical elements in photopolymers is developed. The main advantages of this method are low cost and versatility. Dye deposition 98

lithography is based on the principle that photopolymerisation in photopolymer layers occurs only when the sensitising dye is present. This simple principle in combination with the increasingly high spatial resolution of materials printers is the basis for a low cost optical device fabrication technology. Several optical devices can be fabricated with this method. In this paper results from the fabrication and characterization of fan-out devices in an acrylamide based photopolymer layer are presented. Erythrosine B dye is used as a sensitizer for polymerization by illumination with laser light of 532nm wavelength. Several fan-out devices were designed and the corresponding digital patterns were generated and printed on the initially unsensitised photopolymer layer. The results from the optimization of the delay time between printing and photopolymerisation, and exposure intensities and times are reported. The refractive index profiles of the devices were observed using phase contrast microscopy. The efficiencies of the fan-out devices are characterized and their outputs compared with the expected light patterns.

2285146

Validation of the cryogenic opto-mechanics for the lenses of FRIDA instrument LUIS ALVAREZ L.A.1, SALVADOR CUEVAS S.C.1, OSCAR CHAPA O.C.1, CARLOS ESPEJO C.E.1, VICENTE BRINGAS V.B.2, ADI CORRALES A.C.2, RENE ESTRADA R.E.2, DIANA LUCERO D.L.2 1 Instituto de Astronomía Universidad Nacional Autónoma de México/ 2Centro de Ingeniería y Desarrollo Industrial

We describe the optical tests and results to validate the cryogenic opto-mechanical system barrel that is proposed for FRIDA astronomical project. FRIDA is a Near Infrared and Integral Field Spectrograph with diffraction limited quality to be used coupled to the Gran Telescopio Canarias Adaptive Optics system. This optical system is based on achromatic doublets like S-FTM16 and CaF2, which have high sensitivity to possible misalignments. The main objective of this optical testing is to measure lateral and angular displacements between the lenses and validate the design of the opto-mechanical cell. This cell must align the lens doublet at room temperature and keep it aligned after being cooled to 77 K temperature. Results show that using this method we can measure lateral displacement of about 1 micrometer and angular displacement of about 1 arc sec in cryogenic environments inside a cryostat. We also show that our opto-mechanical design works in specifications. Keywords: Instrumentation – Opto-mechanics, Optical test, Cryogenic test, Near infrared, Integral Field Spectroscopy

2285380

Calibration of a Shack-Hartmann sensor (SHS) with a point diffraction interferometer (PDI) to measure the wavefront aberrations of the human eye GARCIA-FLORES P.C., DIAZ-URIBE J.R. Universidad Nacional Autónoma de México - Centro de Ciencias Aplicadas y Desarrollo Tecnológico

To measure the wavefront aberrations of human eyes, a Shack-Hartmann Sensor (SHS) was developed at UNAM-CCADET. Usually, for calibrating the SHS a well corrected collimated beam is used, so the evaluation of the aberrations depends on this calibration. We propose to use a Point Diffraction Interferometer (PDI) in parallel with the SHS, in order to be able to check for aberrations in the calibration beam at any time. This allows reducing the delay between the calibration and measurement of the aberrations of the eye made with the SHS. In addition, both measurements are made without moving components, so the evaluation made through the SHS can be compensated with the reference beam measurement made by the IDP. The results of the quantitative evaluation of the wavefront aberrations of a human eye are presented in this paper.

2285960

Dragging force and astigmatism surface in commercial polishing machines LEMUS G.P.1, CORDERO A.1, IZAZAGA R.2 1 Benemérita Universidad Autónoma de Puebla 2 Instituto Nacional de Astrofísica, Óptica y Electrónica

99

Dragging force and astigmatism surface in commercial polishing machines It is well known that astigmatic surfaces are obtained when they are polished in commercial polisher machines [1,2,3] designed to produce surfaces of revolution. The authors of this paper do not know an explanation for these results. We measured the dragging force applied from a rotating glass to a small fixed tool of Teflon®. These experiments were done for several radial positions of the tool. Dragging force was measured as a function of the time with the aid a force sensor. We found that the force is a periodic function with fundamental frequency equal to that of glass rotation and it is independent of the radial position of the tool. We used a polisher concentration used was of 20 degrees Baumé which is recommended by the supplier [4]. The amount of polisher per time unit and per area unit, covered by the tool, remained constant for each one of the radial positions of the tool. References: [1].- Ronald Aspden, Ralph McDonough and Francis R. Nitchie, Jr.,‖Computer Assisted Optical Surfacing‖,APPLIED OPTICS 2739, Vol. 11 No.12, December 1972. [2].- S. Savel‘ev and A. P. Bogdanov, ―Automated polishing of large optical components whit a small tool‖, Reprinted whit permission from Soviet Journal of Optical Technology, Vol. 52(5), Mayo 1985, ©1985 Optical Society of America. [3].- Jorge Cuautle-Cortés, Técnico del Taller de Óptica de la Benemérita Universidad Autónoma de Puebla, private communication. [4].- ―Zirox-K-BC0007 Technical and Material Safety Datasheet‖, Universal Photonics Incorporated, www.universalphotonics.com

2286031

Illuminance spatial distribution based total luminous flux determination for

white

LEDs VIDAL N., ROSAS E., HURTADO-RAMOS J.B .Centro Nacional de Metrología

In the last few years the solid state lighting (SSL) has gradually substituted the conventional systems in residential, commercial and industrial buildings; thus demanding metrological solutions arising from this new technological paradigm. Among the requirements this industry presents, are those related to the appropriate description of the devices performance, such as their appearance and efficiency characteristics; which are related to traditionally used radiometric and photometric quantities like the correlated color temperature and the total luminous flux, respectively. However, since the physical functioning principle of SSL devices highly differs from incandescence or fluorescence, then those conventional quantities are no longer valid in some cases. This has forced the metrological international community to propose different approaches to appropriate describe the behavior of those SSL devices, known as LEDs, short for light emitting diodes. Because of those reasons, the Centro Nacional de Metrología of Mexico has developed new capabilities to address the mentioned demands, and here we present a comparison on the luminous intensity measurements of a white LED, when directly determined from the spectral irradiance spectrum, and when measured under near-field and far-field conditions. Also we use the luminous intensity obtained from the spectral irradiance spectra in order to calculate the corresponding total luminous flux, when a typical spatial distribution is assumed for the measured LED

POE 1 Photonics and Opto-Electronics 2286192

Advanced applications of optical fiber sensors MENDEZ A. Mch Engineering

Over the past decade, optical fiber sensors have seen increased acceptance and widespread use in different fields and industries for a variety of applications ranging from structural sensing and health monitoring of materials and structures; to downhole pressure and temperature sensors for oil and gas reservoir monitoring; to high voltage and high current sensing systems for the power industry; to biomedical patient monitoring devices—to name just a few. This talk will provide an overview on fiber sensing technology‘s more advanced

100

applications in different fields, as well as its milestones, technical hurdles, future prospects and market outlook.

2285717

Photonic crystal integrated in a waveguide of a perfect conductor MENDOZA SUÁREZ ALBERTO M.S.1, PÉREZ AGUILAR HÉCTOR P.A.1, VILLA VILLA FRANCISCO V.V.2 1 Universidad Michoacana de San Nicolás de Hidalgo/ 2Centro de Investigaciones en Óptica A.C

In this work we consider a waveguide composed of two periodic, perfectly conducting, one-dimensional rough surfaces. This periodic system has a band structure similar in some aspects to a one-dimensional photonic crystal. However our system has some additional interesting features. We calculate the band structure and the reflectivity of a corresponding finite waveguide. We found that the variation of the roughness amplitude and the relative phases allow to control at a certain degree the band structure of the system. Particularly, broad bandgaps can be obtained. It is even possible to obtain discrete modes for some frequency range and then the periodic waveguide acts as an unimodal filter. The system considered constitutes itself a photonic crystal whose band structure corresponds in many ways to a conventional photonic crystal but using just a single material. The key properties of this system are that it really constitutes a waveguide which has integrated a dispositive that acts as a photonic crystal.

2285475

Fiber optic multiplexed sensors using coherent correlation domain reflectometry ARIAS A., SHLYAGIN M.G. Centro de Investigación Científica y de Educación Superior de Ensenada

We present a simple technique for interrogating a long serial array of fiber Bragg grating-based sensors (FBGs). The technique is based on methods of correlation signal processing for detecting and ranging of weak reflections along a pathway of a broad-band probe signal. A cross-correlation function between the probe and the signal reflected from the sensing fiber provides information on amplitudes of reflected signals and the positions of the weak reflectors along the fiber length. To simplify the sensor configuration and to make it cost-effective, we propose to use a DFB diode laser operating in CW regime as a light source. The inherent phase noise of the DFB diode laser was efficiently converted into intensity noise by using a highlyunbalanced Michelson interferometer. At the interferometer output, a probe signal with a white-noise-like power spectrum (narrow autocorrelation peak) and with average power of 1 mW was generated. Initial tests of the proposed technique demonstrate its high capability in detecting weak reflections. FBGs with reflectivity as low as 0.01% were detected in the 2 km long SMF-28 fiber just after 20.48 msec averaging time. We present experimental results on testing the proposed technique in different sensor configurations. Examples of possible applications for distributed detection and localization of alarm conditions in early warning systems are discussed.

2285585

Manufacturing a chalcogenide glass core fiber with a silica capillary LOPEZ D.1, TARASENKO O.2, MARGULIS W.2 1 KTH, INAOE/2ACREO

Chalcogenide glasses exhibit interesting optical properties such as large wavelength transparency window, high refractive index and are excellent candidates for nonlinear applications. Various groups are actively fabricating and studying waveguides and single-mode fiber with core and cladding made of chalcogenide glass. In this work, we report results using a simple alternative technique to exploit the high nonlinearity of the chalcogenide glass. We employ a conventional silica capillary of a few microns hole-diameter and fill it with the chalcogenide glass in liquid form. Here we use As2S3 glass because it has low melting point (300 Celsius) and is available commercially. The manufacturing procedure consists of first filling an 80 µm inner diameter (125 o.d.) capillary. The glass is molten in a furnace at 340 degrees and fills after 2 hours a section 101

2-cm long of the capillary in a pressure cell at 20 bars. Next, the capillary end that is free from chalcogenide glass is spliced to an 8 µm silica capillary that will receive the soft glass in order to be used as a highly nonlinear fiber. Using 10 bars pressure it is possible to push the molten glass into the small hole, filling a length of 5 cm in 6 hours. We find that long sections have optical quality in spite of the different expansion coefficients of the chalcogenide and the capillary. Finally, the chalcogenide-core fiber is cleaved for further use. Cleaving and handling are problem-free. The system is useful for operation at wavelengths

2284717

Plastic optical fiber to assist frequency response in photodetectors CERECEDO-NÚÑEZ H.H., MÉNDEZ-CRUZ J. E., PADILLA-SOSA P., SÁNCHEZ-OREA J., GONZÁLEZ-MARTÍNEZ F.J. 1 Universidad Veracruzana

We report the design of a basic optoelectronic transmission system, which is based on a plastic optical fiber as a transmitted medium. This set-up is employed with the only proposal to investigate the intensity-modulated frequency response in photo detectors. This system utilizes an electronic signal to vary an electric current, which in turn controls the luminous power of a laser emitter diode (infrared). Then, it is launched and propagated into an optical fiber. The luminous signal is recovered by a photodetector and transformed into an electronic signal to be conditioned for its further processing. The methodology to acquire the bandwidth of the photodetectors includes frequency versus voltage width measurements.

OE 1 Optical Engineering 2283983

Invariant correlation by using vectorial signatures and spectral index FIMBRES-CASTRO CLAUDIA C.FC.1, ÁLVAREZ-BORREGO JOSUÉ J. AB.2, BUENOIBARRA MARIO ALONSO M.A.BI.3 1 Facultad de Ingeniería, Arquitectura y Diseño de Ensenada, B. C. /2Cicese/3CIIDIR-IPN

In this paper a new methodology to recognize objects is presented. This new system is invariant to position, rotation and scale. This digital system has a low computational cost to achieve a significant reduction of processed information by using vectorial signatures. The invariant vectorial signatures are obtained from the information from both the target image as well as problem image. In this way, each image has its rotational and scale vectorial signature. Vectorial signatures are obtained through several mathematical transformations such as scale and Fourier transform. In this way, this method uses the great capacities from the non-linear filters to discriminate between similar objects. Vectorial signatures are compared using non-linear correlation. The result of this comparison is shown in a bi-dimensional plane where the x axis is the result of the rotation correlation and the y axis is the result of the scale correlation. In addition, spectral index are obtained through several mathematical transformation and operations in order to recognize the objects in a more simple way as well as low computational cost. We used images of 21 different fossil diatoms. The results obtained presented at least 95.4% of confidence level.

2285205

Authentication of paper by classifying its visual micro texture KURMYSHEV E.V.1, GUILLEN-BONILLA J.T.2 1 Centro de Investigaciones en Óptica, A.C., México/ 2University of Johannesburg, Republic of South Africa

Material evidence constitutes the most important factor to determining a just verdict. A piece of paper can be important material evidence both in forensic science and authentication of written documents. We propose two techniques for paper authentication, both based on unsupervised classifying of visual micro texture of paper using coordinated clusters representation of images. The first technique concerns the case of a complete reference data base (CRDB); it means that reference images of all possible classes are available. Both multiclass minimum distance classifier and minimum error one-class classifier can be used in this case. To 102

assess a probability of confusion, the similarity of classes is calculated also. The second technique is applied when training images of incomplete set of classes (InCRDB) are available. In this case, minimum error oneclass classifier is used first to classify a test image. If the test image was not assigned to anyone of the classes, then multi class classifier, combined with the calculation of class similarities, is used to give a clue for the authentication. We classified grey level images of different type of paper from books, journals, newspapers and cover paper, using training images of 50 types (classes) of paper. The set of test images was different to that of training images. The CRDB and InCRDB techniques were used in the experiment. The best efficiency of classification (authentication) was obtained with images at the 3x amplification; the efficiency of multiclass classifier in 50 classes and the minimum error one-class classifier was 99.9% and 99.2 %. So, both techniques provide confident authentication of paper.

2285712

Edge detection of fingerprint with the radial Hilbert transform YAILETH JOHANNA MORALES DAZA MORALES Y.J, CESAR ORLANDO TORRES TORRES C.O, LORENZO MATTOS VASQUEZ MATTOS L. Universidad Popular Del Cesar

It is well-known that the Hilbert transfonn (HLT) is useful for generating the analytic signal, and saving the bandwidth required in communication. However, it is known by less people that the HLT is used for edge detection. In this paper, we introduce the radiant Hilbert transform (RHLT), and illustrate how to use it for edge detection with advantage noise immunity, obtaining this form the image squeleton fingerprint. The implemented system the images are entered into a digital correlator that uses the Fourier transform to change the space of representation, facilitating, the correlation operation and authenticate the usuary stored in the data base.

2285821

Performance measures for recognition in a wavelet joint transform correlator MESTRE CARRILLO G.I.1, TORRES MORENO C.2 1 Universidad de la Salle/2Universidad Popular del Cesar

The present paper shows the results of the implementation of a correlation Digital processed Joint Wavelets for gray level images target recognition applications. The aim is to study and characterize the different families of two-dimensional wavelets that are available and build a system of recognition of images it becomes operational, flexible and reliable. The resulting methodology of this study becomes a useful tool to implement in the future, in which the evolution of technology will provide greater reliability and algorithms will allow the design of correlation more compact, fast and versatile with multiple applications. The correlation was tested in image recognition, which also involved images that suffered distortion type Gaussian noise in order to verify its robustness to the ability of discrimination correlation Transformed Joint (JTC) classics.

2286076

Design of a 3D digitalizer by using an interferometric pattern RANGEL-BARBOSA F.J.1, PÉREZ-PANTOJA E., AGUILERA-GÓMEZ E., GUZMÁNCABRERA J.R.1, TORRES-CISNEROS M. DICIS, Universidad de Guanajuato

In industry for example, an object digitalizer is required as a tool which able us to copy and redesign some mechanical item. Of course, this kind of application requires devices that can be portable, easy to handle, fast and with high precision. In our days, there are different options that work using different operation principles; as 2 or 3 cameras, lasers and ultrasonic sources, among others. In this work we propose that using interferometric fringes as a spatial reference can digitalize an object. A digital camera records the interferometric pattern. The images with the fringes information can be now processed in a PC, and then the translation of the variations patterns into spatial distances in the image can be done numerically.

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OE 2 Optical Engineering 2286213

Phase space and phase imaging SHEPPARD C.J.R.1, MEHTA S.B.2 1 Optical Bioimaging Laboratory, Division of Bioengineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117543/ 2Optical Bioimaging Laboratory, Division of Bioengineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 Singapore-MIT Alliance for Research and Technology (SMART), 3 Science Drive 2, Singapore 117543, Singapore

There is continued interest in extracting phase information from microscope images. Transmission imaging can be used to observe and measure refractive index variations in biological samples, leading to estimation of dry mass, and surface topology can be measured using a reflection geometry. Microscope imaging is usually partially coherent: actually this has some advantages over fully coherent systems, such as holographic microscopes. Speckle artifacts are avoided, and the spatial frequency cut off can be increased by up to a factor of two. On the other hand coherent imaging is compatible with reconstruction using the Rytov algorithm. Image formation in partially coherent systems was investigated by Hopkins [1]. By propagating the mutual intensity through the system, he introduced the concept of the transmission cross coefficient, which can be used to calculate images of arbitrary object structures. However, he did not state explicitly the mutual intensity in the image plane. The phase of the image can be recovered from measurements of the mutual intensity [2-4]. The connection between the mutual intensity and the phase space representations by ambiguity function and Wigner distribution function are also well known [5-10]. A wave field can also be reconstructed by tomography of the Wigner or ambiguity functions [11, 12]. The modulus and phase of a wave field can be reconstructed using the transport of intensity equation {Teague, 1984 #1800;Streibl, 1984 #2302;Barty, 1998 #2303}. Recently we have shown that the intensity in a partially coherent image is related to the Wigner function of the object, by convolution with a kernel that we call the phase space imager [13, 14]. For twodimensional (2-D) imaging, this kernel is a 4-D function. This approach can be applied to calculate images in different types of phase contrast microscope [15-17]. It provides an illustrative model for imaging of slowly varying phase objects. The mutual intensity, or different phase space functions, of the image can also be expressed in terms of convolution with a kernel, but in these cases the kernel is in general a 6-D function. In microscopy, we usually want to reconstruct the object from image measurements. Thus we are interested in the phase of the object rather than the phase of the image. References 1. H. H. Hopkins, "On the diffraction theory of optical images," Proc. Royal Society of London Ser. A 217, 408-432 (1953). 2. H. W. Wessely, "Interferometric technique for measuring the spatial correlation function of optical radiation fields," J. Opt. Soc. Am. 60, 678-682 (1970). 3. D. N. Grimes, "Measurement of second-order degree of coherence by means of a wavefront shearing interferometer," App. Opt. 10, 1567-1570 (1971). 4. W. H. Carter, "Measurement of second-order coherence of a light beam using a microscope and a grating," App. Opt. 16, 558-563 (1977). 5. A. Papoulis, "Ambiguity function in Fourier optics," J. Opt. Soc. Am. 64, 779-788 (1974). 6. K. Dutta and J. W. Goodman, "Reconstructions of images of partially coherent objects from samples of mutual intensity," J. Opt. Soc. Am. 67, 795-803 (1977). 7. J.-P. Guigay, "The ambiguity function in diffraction and isoplanatic imaging by partially coherent beams," Optics Comm. 26, 136-138 (1978). 8. M. J. Bastiaans, "The Wigner distribution function applied to optical signals and systems," Optics Comm. 25, 26-30 (1978). 9. K.-H. Brenner, A. W. Lohmann, and J. Ojeda-Castanada, "The ambiguity function as a polar display of the OTF," Optics Comm. 44, 323-326 (1983). 10. J. Ojeda-Castañeda and E. E. Sicre, "Bilinear optical systems - Wigner distribution function and ambiguity function representations," Optica Acta 31, 255-260 (1984). 11. D. F. McAlister, M. Beck, L. Clarke, A. Mayer, and M. G. Raymer, "Optical phase retrieval by phase-space tomography and fractional-order Fourier transforms," Opt. Lett. 20, 1181-1183 (1994). 12. J. Tu and S. Tamura, "Wave field determination using tomography of the ambiguity function," Phys Rev E 55, 1946-1949 (1997). 13. S. B. Mehta and C. J. R. Sheppard, "Phase-space representation of partially-coherent imaging systems using the Cohen class distribution," Opt. Lett. 35, 348-350 (2010). 14. S. B. Mehta and C. J. R. Sheppard, "Using the phase-space imager to analyze partially coherent imaging systems: bright-field, phase 104

contrast, differential interference contrast, differential phase contrast, and spiral phase contrast," J. mod. Optics 57, 718-739 (2010). 15. C. J. R. Sheppard and T. Wilson, "Fourier imaging of phase information in conventional and scanning microscopes," Phil. Trans. Roy. Soc. 295, 513-536 (1980). 16. S. Mehta and C. J. R. Sheppard, "Partially coherent image formation in differential interference contrast (DIC) microscope," Optics Express 16, 19462-19469 (2008). 17. S. Mehta and C. J. R. Sheppard, "Quantitative phase-gradient imaging at high resolution with asymmetric illumination-based differential phase contrast," Opt. Lett. 34, 1924-1926 (2009).

2284495

Novel approaches for near and far field super resolved imaging ZALEVSKY 1, BEIDERMAN 1, MICÓ 2, GARCÍA 2 1 Bar-Ilan University/ 2University of Valencia

There are several factors that limit the resolution of an optical imaging system. The first limitation is related to the F number of the optics which expresses the wave nature of the propagated radiation i.e. the diffraction effect of the propagated wave. The smaller the F number of a lens is, the larger is the angular range of optical rays that it may collect and thus the resolvable separation distance between spatial features is reduced. The second is the geometric resolution limit determined by both the pitch of the pixels in the detector (that set the Nyquist sampling limit and therefore the spatial frequency above which aliasing effect is generated) as well as by the non ideal spatial sampling (caused by the spatial averaging performed by each one of the pixels, in contrast to ideal sampling that is done with Dirac delta functions). The third limitation is related to the dynamic range of the detection array and the number of quantization bits allocated per each sample. In the presentation we will present a set of novel approaches allowing overcoming the above mentioned diffraction and geometric limitations by converting the spatial degrees of freedom to time, polarization, space and wavelength domains. We intend to present techniques suitable for near field imaging as well as for remote sensing applications. We will conclude our talk by showing a new approach capable of monitoring from a distance the heart beats, blood pulse pressure and the glucose level in the blood stream of a patient.

2285685

Hybrid super-resolving pupils with smooth profile ALCALÁ OCHOA N.1, LANDGRAVE J. E. A.1, GARCÍA-MÁRQUEZ J.1, GONZÁLEZVEGA A.2 1 Centro de Investigaciones en Óptica, A.C/ 2División de Ciencias e Ingeniería, Universidad de Guanajuato

Hybrid super-resolving pupils with smooth profile Noé Alcalá Ochoa, J. E. A. Landgrave, Y. Hermosillo, J. García-Márquez and A. González-Vega* Centro de Investigaciones en Óptica, Loma del Bosque 115, CP 37150, León, MÉXICO *División de Ciencias e Ingeniería, Universidad de Guanajuato, Loma del Bosque 103, CP 37150, León, MÉXICO E-mail address: [email protected] One form of achieving super-resolution consists in reducing the size of the Point Spread Function (PSF) of a diffraction-limited optical system. When this has axial symmetry, its PSF will have a central spot surrounded by rings, usually of lower intensity. Through the design of different kinds of superresolving pupils, it has been shown that reducing the size of the PSF also reduces the Strehl ratio of the system, and increases the intensity of these rings. Through the years, a good compromise has been attained using pupils with discontinuous profiles [1,2,3,4]. When Liquid Crystal Displays (LCDs) are used to generate such pupils, however, these cannot be accurately reproduced, unless the LCD resolution is high. To overcome this limitation, we developed a method based on a Bessel series expansion to design pupils with smoother profiles, and found that, properly designed, continuous pupils will perform equally well, or better, than discontinuous pupils. [1] T. R. M. Sales, Phys. Rev. Lett., 81, (1998) 3844-3847. [2] G. Toraldo di Francia, Nuovo Cimento Suppl. 9, (1952) 426-438. [3] P. N. Gundu, E. Hack and P. Rastogi, Opt. Express 13, (2005) 2835-2842. [4] V. F. Canales and M. P. Cagigal, Opt. Express 14, (2006) 10393-10402

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2285831

Analysis of near field microwave and conventional optical images LÓPEZ-MALDONADO G., VARGAS-HERNÁNDEZ. H., ORDÓÑEZ-ROMERO C.L., AVENDAÑO-ALEJO. M., KOLOKOLTSEV. O., QURESHI. N. Universidad Nacional Autónoma de México.

In this work we present near field microwave images of microelectronic circuits and their interpretation to complement the conventional optical analysis. Properties such as size, shape, conductivity, water and mineral content can be explored. Also we analyzed the spatial resolution and its applications in integrated circuit testing. At the same time we show a highly simplified design of a resonant probe with dynamically tunable capacitive coupling and high sensitivity. Images were obtained by measuring the microwave reflection coefficient operating a 7.2 GHz. This design represents a simplified and highly effective approach to implementing near field microwave microscopy, with new tip-sample distance control and resonator tuning methods allowing submicrometric spatial resolution

2286009

Know plaintext attack on the 4F and JTC optical encrypting systems VARGAS C.A.1, BARRERA J.F.2, TORROBA R.3, TEBALDI M.3, BOLOGNINI N.3 1 University 1: Universidad de Antioquia. University 2: Universidad Católica de Oriente. /2Universidad de Antioquia. /3Universidad Nacional de La Plata.

Optical encrypting architectures already demonstrated their extraordinary potentials for practical implementations. As a logical further step, researchers evaluated the involved security parameters, and took as a leading scheme the classical double random phase masks systems. In the present proposal, we plan to include in this analysis the JTC encrypting configuration. Therefore, we implement the known plaintext attack on the optical systems using 4-f and joint transform correlation (JTC) encoding architectures. We describe the procedures that allow a security breach over those systems. We also present computational simulations that show the effectiveness of the attack.

IAPD 1 Information Acquisition, Processing and Display 2286226

Large aperture QPM devices toward giant micro-photonics TAIRA T.1 1 Institute for Molecular Science, 38 Nishigonaka, Myodaili, Okazaki 444-8585 Japan

Micro-domain and its boundary controlled photonic devices by electro-magnetic field have been studied. Engineered compact solid-state laser and nonlinear optics allow reliable, efficient and multi-functional laser sources. Especially, the advent of periodically poled LiNbO3 (PPLN) devices as a quasi-phase matching (QPM), combined with the development of new laser sources based on solid-state technology, have led to the new stage of optical parametric oscillation (OPO). However, the energy applications were limited due to LN‘s poor photorefractive damage threshold. By multi-pulsed electric-field poling techniques at the elevated temperature, a large aperture (5-mm-thick) periodically poled 5-mol% MgO doped LN (LA-PPMgLN) device was fabricated because MgLN has large nonlinear coefficient, appropriate coercive field, and higher resistance to photorefractive damage. With these benefits, high-energy 2.1 μm degenerated OPO of total output energy of 110 mJ with 75% slope efficiency pumped by a Q-switched 10-ns pulse Nd:YAG laser. Lately, its maximum output energy was up to 110-mJ with the 70-% slope efficiency. The narrow band output energy was up to 50-mJ using a volume Bragg grating based OPO for ZnGeP2 based differential frequency generation (ZGP-DFG) to generate high brightness tunable mid-IR (λ=5~11-µm, Δλ

2284708

Cavity-enhanced direct frequency comb spectroscopy REYES-REYES A.1, ZEITOUNY M.G.1, VAN MASTRIGT E.2, PERSIJN S.T.3, BHATTACHARYA N.1, URBACH H.P.1

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1

Delft University of Technology/2Erasmus MC-Sophia Children‘s Hospital/ 3VSL, Delft

We describe a cavity-enhanced direct frequency comb spectrometer (CE-DFCS) developed in our laboratory. Our setup uses a frequency comb laser as the light source, due to its high stability, broad bandwidth and well defined spectral lines. The interaction between the laser beam and the gas sample is increased using a high finesse optical cavity. The detection is done with a virtually imaged phase array (VIPA) spectrometer. We present measurements that demonstrate the capabilities of this instrument to simultaneously detect different molecules present in the same gas sample with concentrations in the order of part per billions (ppb) or lower. Its characteristics make it a reliable tool in the analysis of trace gas in test samples. The test samples can be for instance human breath, in which case the presence and concentration of biogenic gases can provide important information about the health status of a person and be used to make diagnosis.. The developed experimental setup overcomes the compromise between resolution, bandwidth coverage and speed of measurement inherent to most spectrometers. After interaction in the cavity containing the trace gas, the laser beam from the broad band light source is sent through an etalon, known as VIPA. This separates spatially the frequencies in the vertical direction, with a resolution of 800 MHz. Afterwards, a diffraction grating is introduced to separate the modes of the VIPA etalon in the horizontal direction. Using a spherical lens we project the different frequencies of the spectrum on a CCD detector placed at the focal plane. As the different frequencies travel with different angles after being dispersed by the VIPA and the grating, they reach the focal plane at different positions. Therefore a single shot measurement covers a bandwidth of 20 nm and by rotating the grating we can achieve a total bandwidth of 200 nm

2284756

Study of the dynamical behavior of the LIBS plasma under conditions of low atmospheric pressure JIJÓN D., COSTA-VERA C. Escuela Politécnica Nacional

We investigated the shape and average size of the fluoresce signature of the LIBS plume under conditions of low atmospheric pressure. We built a vacuum chamber and implemented a vacuum system consisting of pumps and pulsed leak valves that permits keeping a constant pressure between 8Torr to 0.2Torr. We created a LIBS spark inside the chamber and monitored with two CCD cameras at right angles with the ejection axis of the plume. We processed the pictures and obtained quantitative data from the plume photos to try fitting the recorded shapes with suitable functions consistent with material laser ablation. Additionally, we have constructed an especial detector for measuring the time evolution of the charged cloud as it expands from the point of origin. The detector includes several floating electrodes perpendicular to the expansion direction of the plasma and stacked at a distance from one another. The electronic signal from these electrodes is registered in an oscilloscope. From the information recorded from these electrodes we aim to better understand the expansion under low pressure conditions of the LIBS plasma at different points along the expansion direction. Relevant physical parameters to these measurements are the local plasma temperature and the electron/ion density. Both the pictures of the plume and the electronic detector signal provide complementary information of the time evolution of the LIBS plasma.

2286139

Construction of a semi automatic m-lines spectroscopy device HERNANDEZ-PEREZ M.A.1, VILLANUEVA-IBAÑEZ M.2, GARNICA-PACHECO J.V.2, AGUILAR-HERNANDEZ J.R.3, FLORES-GONZALEZ M.A.2 1 Instituto Politécnico Nacional, ESIQIE/ 2Universidad Politécnica de Pachuca/3Instituto Politécnico Nacional, ESFM

We report the design and construction of an m-lines spectroscopy device. This device is employed to measure the refractive index (n) and thickness (t) of thin films. The spectrometer uses the prism- coupling technique to inject a laser beam into the prism. The propagation angles of the magnetic and electric modes of the films are employed to solve the Maxwell equation. A system of plano-convex and biconvex fused silica lenses is used

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to focus the laser beam (543 or 635 nm) into the coupling point. The measure of the propagation angles is made with an acquisition and image processing system which analyses the light intensity of the m-lines.

2286197

I.R. laser-based remote sensing system for ambient air quality monitoring. GASMI T. Division of Sciences & Engineering Saint Louis University-Madrid Campus

We describe the construction and operation of a CO2-TEA laser-based differential absorption LIDAR (DIAL). Generation of tunable infrared laser radiation using a fast and low wobble galvanometer intra-cavity grating is demonstrated. Pulse clipping of the raw CO2 laser pulses was performed using a noble gas-filled plasma shutter to enhance the spatial resolution of the DIAL system. Discussion and analysis of some recent experimental data will be presented

BMO 1 Bio- medical optics 2286209

Gas in scattering media absorption spectroscopy (GASMAS) - from material science to human gas-filled cavity monitoring SVANBERG S. Physics Department and Lund Laser Centre, Lund University

The new field of Gas in Scattering Media Absorption Spectroscopy (GASMAS) [1,2] combines sensitive diode laser techniques of gas analysis, well-known from the environmental monitoring field, with knowledge of photon propagation in turbid media, much studied, e.g. in biophotonics. Free gas, characterized by very narrow absorption lines, is present in many turbid bulk materials, which themselves have absorptive features which are 10,000 times broader. Gas-filled pores and diffusion processes have been studied in wood [3], fruits [4], foods [5] and pharmaceutical preparations [6]. The technique has also allowed novel diagnostics of human sinus cavities [7]. Lung function monitoring in newborn babies is now being initiated. On the fundamental side, we have also studied the influence of wall collisions in nanoporous ceramics, giving new characterization possibilities regarding non-intrusive pore-size distributions [8]. M. Sjöholm, G. Somesfalean, J. Alnis, S. Andersson-Engels, and S. Svanberg, Analysis of Gas Dispersed in Scattering Solids and Liquids, Opt. Lett. 26, 16 (2001) 2. S. Svanberg, Analysis of Trapped Gas – Gas in Scattering Media Absorption Spectroscopy, Laser Physics 20, 68 (2010) 3. M. Andersson, L. Persson, M. Sjöholm and S. Svanberg, Spectroscopic studies of wood-drying processes, Optics Express 14, 3641 (2006) 4. L. Persson, H. Gao, M. Sjöholm and S. Svanberg, Diode Laser Absorption Spectroscopy for Studies of Gas Exchange in Fruits, Lasers Opt. Engineering 44, 687 (2006) 5. M. Lewander, Z.G. Guan, L. Persson, A. Olsson and S. Svanberg, Food Monitoring Based on Diode Laser Gas Spectroscopy, Appl. Phys. B 93, 619 (2008) 6. T. Svensson, L. Persson, M. Andersson, S. Svanberg, S. Andersson-Engels, J. Johansson and S. Folestad, Noninvasive Characterization of Pharmaceutical Solids by Diode Laser Oxygen Spectroscopy, Appl. Spectr. 61, 784 (2007) 7. L. Persson, M. Andersson, M. Cassel-Engquist, K. Svanberg and S. Svanberg, Gas Monitoring in Human Sinuses using Tunable Diode Laser Spectroscopy, J. Biomed. Optics 12, (5) (2007) 8. T. Svensson, M. Lewander and S. Svanberg, Laser Absorption Spectroscopy of Water Vapor Confined in Nanoporous Alumina: Wall Collision Line Broadening and Gas Diffusion Dynamics, Optics Express 18, 16460 (2010)

2285045

Multifocal nonlinear microscope with single element detector for multidepth imaging CARRILES R.1, HOOVER E.E.2, FIELD J.J.2, SHEETZ K.E.3, SQUIER J.A.2 1 Centro de Investigaciones en Óptica A.C./2Colorado School of Mines/3United States Military Academy

We present a laser scanning microscope capable of producing multiple focal volumes. These volumes can be displaced vertically, to acquire simultaneous images from multiple planes, or superimposed at the same depth 108

but with different polarization states to record the response to different polarizations. We call this last implementation, differential multiphoton laser scanning microscopy (dMPLSM). Also, the microscope is able to take images in different modalities, namely, two-photon excited fluorescence, second, and third harmonic generation; to our knowledge, this constitutes the first report of a multifocal microscope with this capacity. In this work, we demonstrate several capabilities of our microscope: simultaneous acquisition of two and six images from two focal planes separated by several microns, and a pair of simultaneous images taken at the same focal plane but with two different polarizations. Some potential applications include following microorganism motion, studies of phase matching in microscopic environments, studies of blood flow, etc. The microscope is based on a pulsed ultrafast laser. These pulses are split, manipulated and recombined in an interlaced pattern in order to generate a sequence of laser pulses with different divergences, and possibly different polarization states. This pulse train is sent to the microscope objective and focused at different depths. The signal photons are recorded using a single element photomultiplier tube capable of photoncounting. Images from different foci are separated using a time demultiplexing scheme based on a low cost field programmable gate array. The use of a single element detector, instead of a multi-element such as a CCD camera, allows the imaging of scattering media. Also, using photon counting instead of analogous detection, leads to lower signal to noise ratio in the images.

2284229

Tunable ultrashort FS-pulses based on photonic fiber crystals for nonlinear microscopy LICEA-RODRIGUEZ J., ROCHA-MENDOZA I., RANGEL-ROJO R. Optics Department / CICESE.

Nonlinear optical microscopy (NLM) techniques based on two photon excited fluorescence (TPEF), second harmonic generation (SHG) and coherent anti-Stokes Raman scattering (CARS), have attracted increasing attention in live science research during the last decade. The reason for this is because they are nondestructive/non-invasive imaging techniques capable of obtaining molecular information and chemical specificity with lateral and axial resolution similar to the obtained with confocal microscopy. However, different ultrashort pulse regimes are needed for better efficiency (in the signal generation) of the different non-linear processes exploited. While a single femto-second pulsed beam source is needed for TPEF/SHG, two pico-second pulsed beam sources at different frequencies (one of them tunable) are needed for CARS, therefore different laser sources systems are typically used to implement these techniques altogether. We have recently reported the generation of tunable fs pulses based on soliton filtering from a super continuum generated in a photonic crystal fiber (PCF), and anticipated its potential applicability for nonlinear microscopy [1]. In this work we report our recent progress in this development and discuss the optical layout we propose to merge the TPEF, SHG and CARS imaging techniques using our tunable fs source based on PFCs and spectral focusing with glass dispersion; a novel technique recently reported to both stretch ~100fs pulses to the 1-2ps regime and obtain the spectral resolution (of the Raman vibrational bands) needed for CARS micro-spectroscopy [2] 1) J. Licea Rodríguez, et. al., Revista Mexicana de Física, 56 (4) 311-316 (2010). 2) I. Rocha-Mendoza, et. al., Applied Physics Letters, 93, 201103(2008)

2285794

Extracting chromophore concentration information from continuous-wave transillumination breast spectroscopy data WALTER E.J., LILGE L. University of Toronto/University Health Network

A continuous-wave broadband red/near infrared Trans-illumination Breast Spectroscopy (TiBS) device is under evaluation as a potential breast cancer risk assessment technique. Over 20000 spectra have been collected from over 1000 participants with the device over the past decade. Past studies have found a strong correlation between TiBS spectra and mammographic density, a strong breast cancer risk factor, and have shown that the system is sensitive to changes in the breast optical properties over time. Previous analyses used Principal Components Analysis (PCA) to reduce the spectra to a few PCA scores which describe the spectral 109

shape but do not have direct physical or metabolic meaning. An alternate analysis technique is to use absorption spectra of known tissue chromophores and to fit the tissue absorption spectrum as a linear combination of these chromophore spectra. This technique describes the spectra in terms of physically and metabolically meaningful quantities but is difficult to implement for time-independent data since the average photon path length must also be known. Spectra were fit using a diffusion model for photon propagation with chromophore concentrations, scatter amplitude and scatter power as the fit variables. Absorption spectra of the five main tissue chromophores (collagen, water, lipid, hemoglobin and deoxyhemoglobin) were used and the wavelength dependence of the reduced scattering coefficient was modeled using an exponential relationship for scattering power and scattering amplitude. Corrections for edge effects for positions close to the edge of the tissue were included and all variables were restricted to physiologically reasonable ranges to improve convergence for the fitted values. Results for spectra from a study comparing TiBS spectra and mammographic density will be presented and the relationship between the chromophore concentrations obtained, age and mammographic density will be discussed. Extracting chromophore concentrations gives data that is instrument-independent and will make the data interpretation easier for physicians.

2286218

Physic and agriculture DIOMANDE K. Universite de Cocody

Inventions and discoveries from physics are being used increasingly to help mechanisation of crop production processes. They have the potential to bring great benefits to agriculture and the most exciting applications are yet to come. The economy of Côte d‘Ivoire rests on the agriculture whose activities are executed in a traditional way to more of 95% by the operators. In order to contribute to the development of this agriculture, we have oriented our research field on applied optics to agriculture. Then, our research concerns mainly the Laser Induced chlorophyll fluorescence in plants. A simple laser-induced fluorescence set up has been designed and built at the Laboratory of Crystallography and Molecular Physics (LaCPM) at the University of Cocody (Abidjan, COTE D IVOIRE). With this home set up we first have studied the fluorescence spectra of the "chlorophyll" to characterize the potassium deficiency in oil palm (Elaeis guineensis Jacq,), on an experimental plantation of the National Centre for Agronomic Research (NCAR). This rent culture provides a substantial income for producers and is used in food and cosmetics industries. Analysis of chlorophyll fluorescence spectra of two groups of palm: one fertilized normally potassium (K3 group) and one without fertilizer potassium (K 0 group), allowed us to determine the relative intensities fluorescence in the red (690nm) and far red (740nm) as an indicator to characterize the deficiency of potassium (K) of palm oil. However, we found that the results differed for samples along terraced plots. The study of this phenomenon called "edge effect", has enabled us to realize that sampling should be done after two rows of safety in each plot. We also applied the Laser Induced chlorophyll fluorescence technique to improve the plant breeding. For this, we have characterized the rubber tree seedlings in nurseries. And so we have highlighted those sensible to drought and resistant ones. This optical method saves time by 5 years for the breeders. With this expertise on these cash crops, we are in the process of its application to seasonal crops like maize. Control and optimize the productivity of the food product, widely consumed in Côte d Ivoire, would help ensure the availability of food throughout the year to ensure food self-sufficiency.

TO 1 Theoretical Optics 2285900

Optical effects connected with spin-orbit coupling of a photon. KUNDIKOVA N.D. Nonlinear Optics Laboratory, Institute of Electrophysics, South Ural State University

Spin–orbit coupling of a photon manifests itself in two effects. The first one is the influence of the trajectory on the light polarization. The second one is the influence of the polarization on the trajectory of light. The influence of the trajectory on the light polarization has been investigated theoretically and the change in the azimuth of linear polarized light has been observed experimentally under light propagation through a helical 110

(coiled into a spiral) single mode optical fiber. The influence of light polarization on trajectory was demonstrated for the first time under total internal reflection. It was shown that reflected rays suffer a longitudinal shift for the linear polarized light and transverse shift for the circular polarized light. The size of the shifts is on the order of the light wavelength and depends on the state of light polarization. All mentioned effects have been investigated independently till 1990. The influence of the trajectory on polarization and the influence of the polarization on the trajectory were considered as mutually inverse effects for the first time by Zeldovich and Liberman in 1990. The interpretation of these effects in terms of quantum mechanics as an interaction between the orbital momentum of photon and its spin (polarization) has been done by Zeldovich, Dooghin, Kundikova and Liberman in 1991. Here we are going to consider the experimental conditions which are suitable for investigation of spin-orbital coupling of a photon under light propagation through multimode optical fiber, the results of experimental spatial splitting of a beam into two beams with the different spin sign. The influence of the external conditions on the light propagation through optical fiber is discussed also. The effects which can be considered as a manifestation of spin-orbital coupling of a photon in optically isotropic medium are considered.

2284853

Beam mapping on the orbital Poincaré sphere ALIEVA T.1, CÁMARA A.1, BASTIAANS M.J.2 1 Universidad Complutense de Madrid/ 2Eindhoven University of Technology

Representation of two-dimensional optical signals on the orbital angular Poincaré sphere is useful for beam analysis, synthesis and comparison. This mapping is based on the measurement of the second-order moments, which are widely used for beam characterization. It is well known that two second-order moments invariants allow dividing two-dimensional signals into two classes: isotropic and anisotropic. Using the modified Iwasawa decomposition of the ray transformation matrix and bringing the second-order moments matrix to its diagonalized form, we are able to associate the anisotropic signal with a certain point on the sphere. The latitude of this point describes the vorticity of the signal, while its longitude corresponds to the orientation of the beam s principal axes. Apart from that, the beam s scaling and its curvature can be defined. Before beam comparison, it is thus appropriate to perform first its normalization and mapping on the Poincaré sphere. There are many very different beams associated with the same point and therefore this procedure makes sense for fine analysis of beams whose intensity distributions have similar forms. Moreover, every point on the sphere is associated with an orthonormal set of Hermite-Laguerre-Gaussian modes, which can be used for the corresponding beam decomposition that is important for its synthesis and analysis. The developed algorithm for the beam mapping is demonstrated on several examples.

2284589

Stratified media: nonlinear ODE is better FERNANDEZ-GUASTI M, DIAMANT R Universidad Autónoma Metropolitana - Iztapalapa

Propagation of light in stratified media is described with Maxwell s equations. The standard assumptions are that the incident wave is monochromatic and the medium inhomogeneity is one dimensional. Separation of variables establishes a generalized Snell s relationship and allows to decouple the linear PDE s to obtain linear ODE s. The resulting equations are second order non autonomous linear ODEs for the electric and magnetic fields. In the last decades, the problem has been tackled with matrices whose elements are linearly independent solutions of the fields. A limited number of problems are then solved analytically and more complex profiles are solved numerically. Abstract It seems folly to turn the linear differential equations into a non-linear ODE. Nonetheless, this is precisely what we have been doing with excellent results. The field is written in terms of amplitude and phase variables. An invariant is obtained in a fashion first introduced by Ermakov. This invariant permits the decoupling of the amplitude and phase equations, both of which, are nonlinear equations. The amplitude or Milne nonlinear equation is then solved numerically. This method has several advantages: i) initial or final conditions are easily imposed, ii) important physical quantities such as the reflectivity are readily obtained, iii) no further approximations have to be made iv) complex profiles can be modeled with arbitrary degree of precision. Continuous monotonic functions such as the hyperbolic 111

tangent can be used to evaluate the reflectivity as a function of steepness. The abrupt and adiabatic limits are obtained but most importantly, intermediate more realistic cases can also be tackled. For example adsorption between thin film layers or reflection due to refractive index fluctuations in clear air atmosphere. Novel effects will be addressed such as enhanced reflectivity at derivative discontinuities where the refractive index is continuous.

2284621

Speckle issued from numerous independent laser beams LE CAIN A.L.C1, RIAZUELO G.R2, SAJER J.M.S1 1 CEA CESTA 33114 Le Barp/ 2CEA/DAM/DIF Bruyères le Châtel

Multiple laser beam hot spot characterization is crucial to obtain a uniform plasma in inertial fusion experiments. The target of the future French Laser Megajoule (LMJ), filled with hydrogen fuel, must be irradiated by a very uniform compression field with low intensity. The uniformity can be obtained with a spectral dispersion smoothing method which introduces a random moving speckle pattern field. Many theoretical results found in literature are all in the case of one laser beam in the paraxial approach. This study presents a precise description of the characteristics of hot spots generated by multiple laser beams. First we focus our attention on one laser beam which irradiates the target with an incident angle. Second we extend the results to the case of multiple laser beams and present an expression of the radius of the hot spot in all the directions of space. We also demonstrate that hot spots issued from multiple laser beams are elliptic. Confrontation of our analytical predictions with numerical results obtained with the beam propagation CEA code PARAX* in three different configurations of irradiation show excellent agreement. These comparisons show that our analytical model is a good representation of the hot spot structure whether the target is irradiated by one or by multiple laser beams. Therefore we are able to compute and represent a 3D view of the future LMJ hot spot distribution on target. Finally, we extend multiple laser beam generated hot spot model by demonstrating that hot spot radius follows an ellipsoidal equation. The general formula of the polar and equatorial radii of the hot spot is also derived. *« Studies of the laser filament instability in a semicollisionnal plasma », P. Michel, C. Labaune, S. Weber, V. T. Tikhonchuk, G. Bonnaud, G. Riazuelo et F. Walraet, Phys. Plasmas 10, 3545 (2003)

2285286

Optical resonatos and dynamic maps ABOITES V.1, WILSON M.1 Centro de Investigaciones en Óptica A.C

In this work the dynamical behavior of a beam within a ring phase-conjugated resonator is modeled using two dimensional iterative maps. In particular and as an example it is explicitly shown how the difference equations of the Tinkerbell map can be used to describe the dynamic behavior of what we call Tinkerbell beams i.e. beams that behave according to the Tinkerbell map. The matrix of a Tinkerbell map generating device are found in terms of the Tinkerbell parameters, the state variables and the resonator parameters. To our knowledge this is the first time that the mathematical characteristics of an optical device in an optical cavity are stated so that a Tinkerbell map is obtained as the dynamics for the ray beams.

Plenary 2 2286188

Quantum dot nanophotonics: from optical science to practical implementation ARAKAWA Y. Institute for Nano Quantum Information Electronics, The University of Tokyo

Following Esaki s pioneering work on super-lattices and quantum wells, the concept of quantum dots was proposed by Arakawa et al. in 1982 for application to semiconductor lasers together with the theoretical prediction of temperature-insensitive threshold current characteristics[1]. The three-dimensional confinement of electrons in the quantum dots has brought up unique features of artificial atoms, such as discrete energy 112

states and quantum correlation due to spin/charging effects. The quantum dot is one of the most important nanostructures for nanophotonics: Nanophotonics is the photonics utilizing various physics related to nanostructures such as quantum dots, photonic crystal, plasmonic effects, and near-field optics. In this presentation, the current state of the art of quantum dot lasers for practical implementation is addressed including temperature insensitive quantum dot lasers and their high speed operation as well as quantum dot lasers on silicon for LSI-photonics convergence [2-3]. In addition, recent advances in lasing oscillation in both weak- and strong-coupling regime in a single quantum dot–nanocavity coupled system. A high-quality semiconductor optical nanocavity and strong single quantum dot–field coupling enabled the onset of lasing while maintaining the fragile coherent exchange of quanta. We have observed onset of lasing under the strong coupling regime in solid-state material for the first time [4], which shows a clear achievement of the lasing oscillation in a single artificial atom nano-laser. Furthermore, fabrication of a three dimensional photonic crystal nanocavity with a high Q-factor (~40,000) embedding quantum dots and its lasing oscillation are also addressed[5]. Finally, application of quantum dots to solar cells is briefly discussed, showing thermodynamical limit of the quantum dot solar cells can be higher than 75% which far exceeds the limit of 63% calculated in a previous study. References [1] Y. Arakawa and H. Sakaki: Appl. Phys. Lett., 40, 939 (1982) [2] K. Otsubo, N. Hatori, M. Ishida, S. Okumura, T. Akiyama, Y. Nakata, H. Ebe, M. Sugawara and Y. Arakawa Jpn. J. of Appl. Phys. Vol. 43, L1124 (2004) [3] K. Tanabe, D. Guimard, D. Bordel, S. Iwamoto, and Y. Arakawa, Optics Express, 18, 10604 (2010) [4] M. Nomura, N. Kumagai, S. Iwamoto, Y. Ota, and Y. Arakawa, Nature Physics 6, 279, (2010). [5] A. Tandaechanurat, S. Ishida, K. Aoki, D. Guimard, M. Nomura, S. Iwamoto, and Y. Arakawa, Nature Photonics 5, 91 (2010)

Monday 15 - Poster Session 1 OIS Optical Interaction Science 2284607

Optical characterization of films of asphaltenes using diffuse reflection spectroscopy MUNOZ MORALES A,A1, NAREA F.2, LABRADOR H.3 1 Laboratorio de Ultraestructura, Centro de Investigación Médica y Biotecnológica de la Universidad de Carabobo, Facultad de Ciencias de la Salud./ 2Laboratorio de Espectroscopia de óptica de Superficies, Grupo de Instrumentación y Óptica, Departamento de Física, Facultad Experimental de Ciencias y Tecnología/ 3Departamento de Química, Departamento de Física, Facultad Experimental de Ciencias y Tecnología

Asphaltenes is a component the petroleum, it is known as cholesterol of the hydrocarbons. This fraction is responsible for serious problems in the extraction, transportation and refining of oil, because was add and precipitates in pipes. That is why we proceeded to a characterization by diffuse reflection spectroscopy of asphaltene film on 316L stainless steel substrates, we prepared solutions from 5 to 15g / L to elaborate films of different thicknesses, was measured their thicknesses using a diffuse reflection spectrophotometer analyzed the reflectance spectra with the Kubelka-Munk model as a solution of the radiative transfer model for the propagation of a photon in a medium turbos, we developed a aplications using the MATLAB 6.5 for obtaining thicknesses, were obtained between values 40 and 90 microns for samples, in accordance with measured elaborated by other authors which allow us to finally conclude that the technique of Diffuse Reflection Spectroscopy is effective for superficial study of asphaltene films over metal

2284792

Leakage radiation microscopy GARCÍA C.E.1, COELLO V.M.2 1 Universidad Autónoma de Nuevo

León/ 2Centro de Investigación Científica y Educación Superior de Ensenada

113

Manipulation of surface plasmon polaritons (SPPs) has gained attention in recent years [1]. SPPs opened new alternatives in nano-optics, photonic circuits and biosensors, among others. Scanning near field microscopy has been used traditionally to map the SPPs field due to their evanescent nature [2]. Unfortunately this technique is very time consuming and requires specialized technical experience. Also the relationship between a sample and its near-field optical image is usually complicated. In this work, we built a leakage radiation microscope that allows us to map the SPPs in real time (without scanning) through a CCD connected to the computer. LRM offers a fast and useful tool for direct and reciprocal (Fourier) far-field imaging of SPPs that are relatively easy to visualize and correlate to the surface topography [3]. References. [1] V. Coello and S.I. Bozhevolnyi, Opt. Commun. 282 (2009) 3032-3036. [2] S.I. Bozhevolnyi, Near-Field Optics of Nanostructured Surfaces, ISBN 0-471-34968-2 [3] A. Drezet, A.L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F.R. Aussenegg, A. Leitner, J.R. Krenn, Appl. Phys. Lett. 86 (2005) 074104. [4] Z. Liu, J.M. Steele, W. Srituravanich, Y. Pikus, C. Sun, X. Zhang, Nano Lett. 5 (2005) 1726.

2284982

Evanescent wave far field interference CORTÉS R., COELLO V. CICESE, Unidad Monterrey

Evanescent waves (EWs) are electromagnetic modes with an intensity that exhibits exponential decay with distance from the boundary at which the wave was formed [1]. The described phenomenon was first recognized by Newton in a well-known experiment [2]. Nowadays the effect is the basis of several important technologies including guided optics [3], waveguides [3], fiber optic couplers [3], internal reflection spectroscopy [4], and near-field optical microscopy [5], among others. In a general form, the fundaments of such applications are found in the EW coupling [1]. Here, using a conventional optical microscope, we report on the observation of EW interference patterns in the far-field domain. Evanescent fields were coupled into far-field radiation using small defects (scattereres) located at the surface where they were created. In this work, we show the ability to use conventional far field microscopy, in combination with evanescent interferometry, to perform high-accuracy length measurements at the micro and nano-scale. The technique offers an easy implantation and relative low-cost and it can be also conceptualized for pedagogical purposes of evanescent wave phenomena. [1] Frederique de Fornel, Evanescent Waves: From Newtonian Optics to Atomic Optics (Springer Heidelberg) (2001). [2] I. Newton, Opticks (Dover, New York, 1952), Book two, Part I. [3] Yeh, C., Shimabukuro, The Essence of Dielectric Waveguides, Springer, ISBN: 978-0-387-30929-3 (2008). [4] F. M. Mirabella Jr, Internal Reflection Spectroscopy, Applied Spectroscopy Reviews, 21, 1 & 2, (1985), 45 – 178. [5] Daniel Courjon, ―Near-field Microscopy and Near-field Optics‖ Imperial College Press, (2003).

2285049

Differences in one-photon and two-photon resonant-emission-spectra of two fluorescent dyes CAN-UC B.A., RANGEL-ROJO R. Centro de Investigación Científica y de Educación Superior de Ensenada

In this work we present a study of the fluorescence of two organic dyes excited both in a one-photon, and in a two-photon resonant regime, excited by the second harmonic and the fundamental of a femtosecond laser. We found a shift of the emission peak for 820 nm two-photon resonant excitation, relative to that obtained when one-photon resonant 410 nm light is used. For one of the dyes employed DCM, this shift is towards shorter wavelengths, whereas for Coumarin 480, this shift is in the opposite way, i.e. towards longer wavelengths. A possible explanation for this behaviour in terms of the different resonant conditions is presented. These studies are of great interest for the implementation of novel microscopy techniques based in these nonlinear effects

2285124

Nanoparticle coated optical fibers for single microbubble generation PIMENTEL-DOMÍNGUEZ R., HERNÁNDEZ-CORDERO J. 114

Instituto de Investigaciones en Materiales, UNAM The study of bubbles and bubbly flows is important in various fields such as physics, chemistry, medicine, geophysics, and even the food industry. A wide variety of mechanical and acoustic techniques have been reported for bubble generation. Although a single bubble may be generated with these techniques, controlling the size and the mean lifetime of the bubble remains a difficult task. Most of the optical methods for generation of microbubbles involve high-power pulsed laser sources focused in absorbing media such as liquids or particle solutions. With these techniques, single micron-sized bubbles can be generated with typical mean lifetimes ranging from nano to microseconds. The main problem with these bubbles is their abrupt implosion: this produces a shock wave that can potentially produce damageson the surroundings. These effects have to be carefully controlled in biological applications and in laser surgery, but thus far, not many options are available to effectively control micron-size bubble growth. In this paper, we present a new technique to generate microbubbles in non-absorbing liquids. In contrast to previous reports, the proposed technique uses low-power and a CW radiation from a laser diode. The laser light is guided through an optical fiber whose output end has been coated with nanostructures. Upon immersing the tip of the fiber in ethanol or water, micron-size bubbles can be readily generated. With this technique, bubble growth can be controlled through adjustments on the laser power. We have obtained micron-sized bubbles with mean lifetimes in the range of seconds. Furthermore, the generated bubbles do not implode, as verified with a high-speed camera and flow visualization techniques.

2285211

Optical properties of fullerenes confined in ordered alumina nanotube arrays. ONTIVEROS-BARRERA F.G., MORALES-SAAVEDRA O.G., MATA-ZAMORA M.E., BAÑUELOS J.G., RODRIGUEZ-ROSALES A.A., ÁLVAREZ-ZAUCO E. CCADET-UNAM

In the present work, prepared amorphous oxalic anodic alumina membranes (AAM) containing highly ordered nanotube arrangements with average nanometric dimensions of 60 nm in diameter and 50 microns in depth were successfully implemented as hosting matrix for different fullerene systems, namely C60 and C70. AFM-microscopy investigations systematically performed on the hybrid samples reveal an optimal fullerene insertion within the Al2O3 nanotube arrays. In order to evaluate the optical performance of these systems for potential photonic applications, comparative linear and nonlinear spectroscopic studies are presented. Ordered nanostructured systems represent a promising field of investigation in the route to functional organicinorganic based hybrid materials, where different hybrid composites can be designed and are of interest in the development of new and improved applications in nanotechnology, as for example, AAM-based gate structures for active-matrix LC- or OLEDs-displays, high density storage magnetic materials and photonic crystals. Sample preparation and extensive discussions on the optical properties of the fullerene compounds within the Al2O3 nanotube-like confinement, are given in detail.

2285692

Effects of B2O3 doping on crystallite phase and visible upconversion emission of ZRO2:ER(1%),YB(2%) nanocrystals DIAZ-TORRES L.A.1, BORJA-URBY R1, SALAS P2, VEGA M3, ANGELES-CHAVEZ C4 1 Centro de Investigaciones en Óptica A.C./ 2 Centro de Física Aplicada y tecnología avanzada, UNAM/ 3Centro de GeocienciasUNAM/4Instituto Mexicano del Petróleo

Green and Red upconverted emission of ZrO2-B2O3:Yb3+,Er3+ nanocrystals, prepared by modified sol-gel method, is demonstrated. The nanocrystals present red dominant emission when annealed at 500°C and green dominant emission when annealed at 100°C. Crystallite phase as well as visible and near infrared emission depend strongly on B2O3 content. The PL intensity is enhanced by around 30% for low B2O3 content, whereas it is strongly quenched for high B2O3 content. Substitution of 2%mol Yb2O3 and 1% mol Er2O3 stabilizes the cubic ZrO2 phase. The addition of B2O3 during the preparation of nanocrystalline phosphors 115

containing 2 %mol Yb and 1 % mol Er stabilizes the ZrO2 cubic phase up to 2.5 % mol B2O3, whereas for higher B2O3 contents induces the cubic to tetragonal phase transition with no B2O3 segregation up to 20 % mol B2O3. Non radioactive energy transfer processes among Yb and Er ions depend on B2O3 content, and a upconversion scheme is proposed to explain the observed upconverted photoluminescence.

2285816

Photo-control of supramolecular chiral structures in azopolymer films SOLANO C.1, RODRIGUEZ-GONZALEZ R.J.2, LARIOS-LOPEZ L.2, NAVARRORODRIGUEZ D.2, MARTINEZ-PONCE G.1 1 Centro de Investigaciones en Óptica, A. C. / 2Centro de Investigaciones en Química Aplicada

Azopolymers have created much interest because of the possibility of controlling their optical properties using polarized light. A widely investigated feature is the large linear birefringence induced in them by linearly polarized illumination. The origin of this photoinduced anisotropy is connected to the anti-alignment of the azobenzene moiety after multiple trans–cis–trans isomerizations to the incident polarization plane. Another interesting attribute is the self-induced rotation of the azimuth of an elliptically polarized laser beam when it propagates through these materials. This observation has been associated with the formation of a long-range helical arrangement of the azobenzene moieties, which extends along the thickness of the film. The assembly is taken as a supramolecular chiral structure which owns features depending on the ellipticity and wavelength of the incident light. In this paper, the self-rotation on the polarization azimuth and the formation of a supramolecular chiral structure when an elliptically polarized light beam propagates through an amorphous azopolymer film are study under two-wavelength illumination. The macrostructures generated by each excitation beam have different pitches, which produce different rotation angles of the polarization ellipse when one of the beams is used as a probe. The extent and the sign of the rotation angle of the polarization ellipse of the probe beam when the second beam is illuminating the sample mainly depend on the relationship between their input states of polarization and the quantum yields.

2285945

Four-wave mixing in the detection of electron-and hole-base holograms. JORGE ENRIQUE RUEDA JR, LUIS ALFONSO GUERRA LG, LINA MIREYA CASTRO LC Universidad de Pamplona

Photorefractive crystals are nonlinear materials, among other applications; they allow dynamic registration of holograms. We propose a new alternative, using four-wave mixing, for evidence the formation of electron-and hole-base holograms. We show results using BSO crystals.

2285983

NLO characterization for Nobel borinates: evaluation of the N-B bond. CASTRO-BELTRAN R.1, RODRÍGUEZ M.1, RAMOS-ORTIZ G.1, LEDOUX-RAK I.2, FARFÁN N.3, SANTILLAN R.4 1 Centro de Investigaciones en Óptica/ 2Ecole Normale Superieure de Cachan/ 3Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México/ 4 Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN

Electronic and electro-optical organic materials are the subject of much research interest for photonic applications. In this field, three-coordinate boron complexes are interesting materials with chemical, catalytic, structural, optical and electronic properties that have been used in different areas as medicine, organic synthesis, material science, biology and opto-electronic applications. In this work, we studied the synthesis, linear and NLO proprieties of two ligands (L1-L2) derived from cinnamaldehyde and two new borinates (B1B2). The structure confirmation of L1 and B1 was made through X-ray diffraction analysis, wherein planar conformation was conserved after boron complexation. Second and third-order NLO responses were performed by Electric Field Induced Second Harmonic (EFISH) Generation at 1900 nm and Third Harmonic 116

Generation (THG) at 1900 and 1067 nm. In conclusion, NLO behavior of the boron complex compared with their ligands showed a trend to increase the hyperpolarizabilities responses after boron complexation. N - B coordinative bond facilities and enhances the electronic mobility of the conjugated system. Producing increase factors of 3 and 2 for the EFISH results. Individually, these studies demonstrate that B1 is the strongest NLO compound, showed values of first hyperpolarizability = 126 E-34 esu and second hyperpolarizability = 35 E-34 esu.

2285999

Effect of ultraviolet radiation on polyethylene films MARTÍNEZ-ROMO A.1, GONZÁLEZ-MOTA R.1, SOTO-BERNAL J.J.1, FRAUSTO-REYES. C.2, ROSALES-CANDELAS I.1, ALBA-NEVARES L.L.3 1 Instituto Tecnológico de Aguascalientes/ 2Centro de Investigaciones en Óptica, A.C./ 3 Instituto Tecnológico de Pabellón

One of the most important and used plastics in the world is the polyethylene (PE), which is a linear chain polymer consisting of ethylene monomer, which is formed only by carbon-carbon single bonds, resulting in a very stable material with a very slow degradation rate, that is why we are looking for alternative ways to accelerate the degradation time of this material. In this paper, polyethylene films were exposed to UV-B radiation (320-280 nm) at different exposure times (2 to 72 hours), with the aim to degrade the polyethylene chain, leading to broken chains polymer and hence the deterioration of mechanical properties. The effects of UV radiation on PE samples were characterized using Raman and infrared spectroscopy with attenuated total reflectance (ATR). Infrared and Raman bands appear in the spectral region where the vinyl and carboxylic groups absorb, which are products of the degradation of PE.

2286074

Wave propagation in a multiple interfaces nanowaveguide LUIS-RAMOS A1, GÓMEZ-PAVÓN L.C.1, ROJAS-GARCÍA I1, FÉLIX-BELTRÁN O1, PARADA-ALFONSO R2, MARTÍ-PANAMEÑO E1 1 Benemérita Universidad Autónoma de Puebla/2Institututo Politécnico Nacional

The multiple functions and potential applications of nanotechnology have become necessary and powerful tools in scientific work nowadays. Nanotechnology is an interdisciplinary science that involves physics, chemistry, biology, materials science and a wide range of engineering disciplines. Several researches have been focused on fabrication of nanostructured devices. In this context, the study and fabrication of nanosensors has become an important research field in nanotechnology. In particular, new biosensor technology combined with micro and nanofabrication technology can take to a huge range of applications. The control of light propagation at the nanoscale dimension has been a great challenge in nanophotonics. Few years ago, it was demonstrated the basic control of plasmons in planar structures with metal/dielectric interface as well as the light confinement in structures with dimension less than 100 nm conformed by insulator/metal/insulator composites, with the disadvantage of great losses. The same demonstration has been achieved with a structure metal/insulator/metal (MIM), reporting low losses and high dispersion results. In this work, the wave propagation in a multiple interfaces nanowaveguide with applications as a nanosensor is studied. We analyze the modes of propagation in the nanowaveguide regarding its geometry and materials

2286107

Optical sensor based on PSI/GD2O2S:TB devices HERNANDEZ-ADAME L.1, SALADO-LEZA D.E.1, MEDELLÍN-RODRÍGUEZ F.1, VEGACARRILLO H.R.2, PALESTINO G1 1 Universidad Autónoma de San Luis Potosí/ Facultad de Ciencias Químicas/ 2Universidad Autónoma de Zacatecas/b Unidad Académica de Estudios Nucleares

Scintillators are high density luminescent materials that convert UV and X ray to visible light. Coupling scintillators to photonic materials to develop real time high sensitivity devices need to be addressed in novel medical detection. In this research, terbium-doped Gadolinium Oxysulfide (Gd2O2S:Tb) fluorescent 117

nanoparticles (Nps) were synthesized using the homogeneous precipitation method with solid-gas sulfuration technology. Nps were infiltrated in Porous silicon (PSi) photonic structures to develop hybrid PSi/Nps device. Scanning Electron Microscopy was used to obtain the substrate morphology while the elemental composition was determined by Energy dispersive X-ray fluorescence. Nps fluorescence response was evaluated illuminating the PSi/NPs device with UV (300 nm) and X-rays (60 kev) energies. Monte Carlo calculations were carried out in order to analyze the correlation between the absorbed dose and the Nps fluorescent emission to determine the device lattice response and the absorbed dose operation range.

2286141

Optical spectroscopy and high pressure on emeralds: synthetic and natural SÁNCHEZ-ALEJO SANCHEZAMA1, HERNÁNDEZ HERNÁNDEZAJM2, MURRIETA MURRIETASHO2, FLORES FLORESJMC2, CALDERÓN CALDERÓNGT3, CAMARILLO CAMARILLOGE2 1 Posgrado de Ciencia e Ingeniería de Materiales/ 2UNAM/ 3U.A. de Madrid

Emerald, natural and synthetic, are the subject of study by means of optical spectroscopy techniques. Particularly, natural emeralds have been considered as a gemstone in jewelry not being so the synthetic ones. But, in general, the properties of these are very good for applications, for instance as a laser system, due to the impurities control. In this work a comparison between the optical properties of natural and synthetic emeralds is done. Chromium ions are the main responsible for the characteristic fascinating green color of these gemstones, entering in the crystals in octahedral sites. Absorption at room temperature shows up two broad bands in the visible region and two narrow bands called the R-lines. That spectrum corresponds to trivalent chromium ions in an octahedral site, as it happens in ruby and alexandrite. On other hand, photoemission for these materials arises in the range 640-850 nm. at room temperature. In this work it is shown that the luminescence spectra presents important changes for both type of samples as a function of the temperature and pressure; being the crystal field intensity higher for synthetic emeralds with the corresponding blue shift in the spectrum. The effect of a high pressure, applied on small samples of emerald, on the main luminescence peak shows a linear behavior

2286142

Influence of precursor chemistry on the luminescent properties of BaTio3:ER3+ films CARRILLO ROMO F. DE J., GARCÍA MURILLO A., GARCÍA HERNÁNDEZ M., GONZÁLEZ PENGUELLY B., GARRIDO HERNÁNDEZ A. Centro de Investigación e Innovación Tecnológica CIITEC-IPN

In recent years, lanthanide-doped ultrafine and nanocrystalline oxide materials have been widely investigated due to their interesting optical properties, which make them promising candidates for applications in advanced fields, such as phosphors for TV screens, solar energy converters and optical amplifiers. Barium titanate ceramics have been found for extensive applications in a variety of devices due to their excellent optical and electrical properties. Because of the intrinsic capability of the perovskite structure to host ions with different sizes, a large number of different dopants can be accommodated in this lattice. As a result, in the past few years, ABO3-like compounds such as SrTiO3, BaTiO3 or CaTiO3 doped with rare earth ions have also revealed to have proved to be very efficient luminescence properties. In this work erbium doped barium titanate thick films are elaborated by three different procedures of synthesis by sol-gel method. The influence of the starting materials on the processing, microstructure, and purity of the prepared systems has been studied using barium acetate and two different sources of titanium as tetrabutyl titanate and titanium tetraisopropoxide was also investigated taking into account several molar ratios in function of the barium precursor (barium acetate). For the barium acetate and tetrabuytl titanate, BaTiO3 films were synthesized using (acac)H/Ba= 4/1 and H-(OAc)/Ba= 52/1, for titanium tetraisopropoxide H2O/Ba= 40/1, PrOH/Ba= 40/1, (acac)H/Ba= 1/1 and H-(OAc)/Ba= 18/1. The decomposition process, crystallization, microstructural and optical behavior were studied by FT-IR, XRD, MEB and emission spectroscopy. The samples presented a cubic phase at 700 ºC. The films had a homogenous, continuous and fracture-free microstructure. The luminescence of the erbium ion into BaTiO3 is strongly influenced by the thickness of the films.

118

2286146

Simple optical tweezers system for mesoscopic biophotonics MELO C.A., SOLARTE E. Grupo de Óptica Cuántica, Departamento de Física, Universidad del Valle, Cali - Colombia

A system of optical tweezers was built using a 50 mW, Nd:Yag DPSSL @ 532nm with the aim to manipulate mesoscopic objects. The system was tested by manipulating dielectric polystyrene spheres of 1.09 μm diameter which flow under pressure in deionized water . An indirect measurement method, that uses digital images extracted from 29 fps video, is proposed in order to estimate the stiffness of light trap and the maximal strength on the particles.

2286184

Improving the red up-conversion emission of Y2O2S:ER3+ -YB3+ NANOCRYSTALS with an optimum sodium sulfide concentration CAMPOS VILLALOBOS I.1, LÓPEZ-LUKE T.1, DE LA ROSA E.1, TORRES-CASTRO A.2, SALAS P.3 1 Centro de Investigaciones de Óptica A.C/ 2Universidad Autónoma de Nuevo León/ 3Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México

The most efficient up-converting phosphors are yttrium based inorganic crystals, such as yttrium fluoride (YF3), yttrium oxide (Y2O3), yttrium oxysulphide (Y2O2S), and sodium yttrium fluoride (NaYF4), in which Yb 3+ (the absorber) and a second trivalent rare earth ion (Er3+, Tm3+, Pr3+, Ho3+, the emitter) are codoped. The predominant mechanism for most Yb3+ sensitized phosphors that have the highest up-conversion efficiencies. It involves successive energy transfers from a sensitiser (absorber, Yb3+) to an emitter (Er3+ or Tm3+). Difference between S and O makes it possible to obtain interesting luminescent properties of Y2O2 via S doping. Y2O2S:Er3+-Yb3+ nanocrystallites were prepared by precipitation method using different sodium sulfide concentration. The Er3+-Yb3+ ion concentration was added from 1 - 2 mol % respectively into Y2O2S lattice. The crystalline structure and morphology of the Y2O2S: Er3+-Yb3+ was studied. The crystallite size was obtained in the range of 20 nm observed by TEM and XRD. The strong red light emission was obtained as a result of the two strong bands centered at 661 nm and 676 nm under direct excitation at 970 nm. The highest efficiency was obtained with an optimum sodium sulfide concentration of 3 g. The luminescence intensity obtained by Y2O2S: Er3+-Yb3+ nanocrystals was considerably strong compared with the sample prepared without sodium sulfide. The previously results indicate that sulfur (S) is affecting the nanoparticle surface charge and therefore the nanoparticles dispersion in water, being an attractive phosphor to biological applications.

FDI Fabrication, design and instrumentation 2283162

Single polarization, YB3+-doped fiber amplifier design for cars. NEGRETE-GONZALEZ G.1, OFFERHAUS L.H.2, ALVAREZ-CHAVEZ 1

J.A.1

2

CIITEC-IPN/ Optical Sciences Twente University

Using finite element theory an Yb3+-doped fiber amplifier will be designed for Coherent Anti-Stokes Raman Scattering (CARS) applications at ~1μm. A tunable (750-850nm) broad band semiconductor laser will be employed to obtain the required seed. Both counter and co-propagating schemes will be used in order to secure and analyze population inversion as a function of fiber length. A double clad, octagonal shape 10μm core with a 25000 ppm tailored profile concentration is used as the basis for our design development. A [email protected] high-intensity (I≈3.2x109 W/m2), quasi diffraction-limited, with an M2≈1 and a S/N ratio 119

>30dB, temporally stable behavior and suitable RIN will be demonstrated after full simulation using VLad. Full optical characterization results will be included in this works presentation.

2283923

Calculation of higher order dispersion coefficients in photonic crystal fibers MARTINEZ-RIOS A.1, ILAN B.2, TORRES-GOMEZ I.1, MONZON-HERNANDEZ D.1, CEBALLOS-HERRERA D. E.1 1 Centro de Investigaciones en Óptica A.C./2School of Natural Sciences, University of California at Merced

We present the calculations of the higher order dispersion coefficients in a photonic crystal fiber. The dispersion coefficient is obtained from the calculated effective index of the fiber structure by double differentiation with respect to the wavelength (or frequency), or from the integral formula used to calculate the group index. Although both approaches are equivalent we show that they lead to totally dissimilar results, like different zero dispersion wavelength and hence the higher-order dispersion coefficients are different. In fact, the way in which the higher-order dispersion coefficients are calculated also affects the resulting dynamics of the supercontinuum due to the difference in magnitudes as we will discuss in this work.

2284304

Measurement of the refraction index of a glass plate using a point diffraction interferometer(PDI) RUEDA-SORIANO E., GRANADOS-AGUSTÍN F.S., CORNEJO-RODRÍGUEZ A.Instituto Nacional de Astrofísica, Óptica y Electrónica.

With a He-Ne laser illuminating a spatial filter, and by means of an achromatic lens, a collimated beam is produced; if at the focal point of a second focusing lens the plate of the PDI is located, a so, called reference interference pattern Wr, of the system is registered. The plate of the PDI has a micro-hole and transmittance of less than 10%. As a second step, a glass plate, with unknown index refraction, is introduced between both lenses. Consequently, a new modified interference pattern is registered as Wt. With the software program APEX, for the analysis of interferograms, each wavefront is registered as Wr and Wt. From the difference of these two functions, Wr and Wt, the value of the refraction index of the glass plate, ND, can be derived, with the previous knowledge of the glass plate thickness. Experimental results will be shown for different glass plate.

2284444

Analysis of interferograms of a lens using a knife edge interferometer. KORNEEV N.1, GRANADOS F.S.1, DÍAZ R.2, CORNEJO A.1 1 Instituto Nacional de Astrofísica Óptica y Electrónica. / 2Centro de Ciencias Aplicadas y Desarrollo Tecnológico UNAM.

In previous works Korneev, et. al, had been shown the feasibility to produce an interference pattern, for testing a lens, by setting near by the focal point of the lens a razor knife edge. The interference phenomena is produced between the wavefront coming from the lens, and the wavefront produced by the knife edge. Since partial interferograms are observed, due to the obstruction of the knife edge; by rotation of the knife edge in several directions, interferograms with different information can be registered by means of a CCD connected to a PC. In this paper the stitching of the two partial registered interferograms, along the vertical and horizontal directions are analyzed, to find out the aberrations of a lens.

2284482

Asen detection on transversal optical fiber with erbio dopping MIRELES J.R., TENTORI D. Cicese

120

The advent of fiber optics has led to a technological revolution whose foundations continue to take root, an example is the development of optical fibers contaminated with erbium, which given their fluorescence response in the spectral range between 1.5 and 1.6 micrometers, are particularly suitable the optical cominucaciones. Today, the utility of the doped optical fiber amplifiers in (EDFAs) and lasers (edsfl) need not be discussed. Prenscindibles Studying these devices is to understand its performance and possibilities of evolution. Modeling make sewn for expressions of reason and propagation equations in the middle, so compute the evolution of signal, amplified spontaneous emission (ASE) and pumping. Since the simultaneous carecterizacion techniques are of interest to manufacturers, to develop a method for measuring the emission can not grab that mode coupling of yaw and escapes across the axis of the ficbra offers a solution in situ, as well as the possibility not to destroy the sample. By working experimentally in the transverse fiber detection, the contribution of uncoupled pump leaking the deck has been found dominant, blinding the observation of lower energy emissions, such as cross-ASE. We propose a technique for the measurement of spontaneous emission cross the idea to discern between the two contributions potecnia (pumping and fluorescence), lies in the long lifetime of the excited state, the modular pumping with Coert periodof more than relaxation it is then possible to recover the energy information modulated also not detected.

2284518

Assessment of residual stress on thin films by laser microtopography COSTA M.F.M., TEIXEIRA V. Universidade do Minho.

Residual stress of as-deposited coatings may cause bending of the coating/substrate system. If residual stresses are present and the overall deflection is small compared with the substrate thickness, then by symmetry the coated substrate will take up a spherical curvature in the region away from the edges. Near the edges a complex stress state will be present. However away from the edges this reverts to a simple stress state where stresses normal to the substrate and shear stresses are zero The three-dimensional inspection of thin films deposited in thin substrates allows the assessment of film‘s residual stress. In this communication we report on the use of this method illustrating it by performing the residual stress evaluation PVD onto glass deposited thin films using optical non-destructive and non-invasive microtopographic inspection using an active optical triangulation sensor developed by the first author at the Universidade do Minho. It allows depth measures with resolutions down to 2nm and lateral resolutions down to 1m. The three dimensional map and corresponding coordinate set obtained allow the calculation of the stress distribution over the film.

2284572

Design and construction of a compact Z-scan portable system. JIMÉNEZ-SALINAS M.F., ORTEGA-MARTÍNEZ R.1, RODRÍGUEZ-ROSALES A.A., MORALES-SAAVEDRA O.G., QURESHI N. Centro de Ciencias Aplicadas y Desarrollo Tecnológico-UNAM

The design and construction of a compact instrument that automatically measures Kerr-based third order nonlinearities (both nonlinear refractive index: gamma, and nonlinear absorption: beta) in materials, is presented. The instrument includes the control of the polarization state of the input laser beam and was calibrated with well known reference samples [1, 2, 3, 4]. The mechanical translation system and the polarizer rotation-stage are controlled via a home-made electronic circuit, whereas the data acquisition from three photodiodes is performed via a 12-bits DAQ. The entire system is fully controlled by means of an application program encoded in LabView. The importance of the developed experimental device is its reliability, compactness, easy implementation and transport, table-top installation, low cost and high accuracy. Reference: 1.A A Rodríguez-Rosales, R Ortega-Martínez and O G Morales-Saavedra, Journal of Physics, in press. 2.Antonio A. Rodríguez-Rosales, Omar G. Morales-Saavedra, Carlos J. Román and Roberto OrtegaMartínez, Optical Materials, 31,(2), pp. 350-360, 2008. 3.A.A. Rodríguez-Rosales, R. Ortega-Martínez, M. L. Arroyo Carrasco, E. Reynoso Lara, C. G. Treviño Palacios, O. Baldovino-Pantaleón, R. Ramos García and M.

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D. Iturbe-Castillo, Molecular Crystal and Liquid Crystals 489, pp. 335-347, 2008. 4.M. Sheik-Bahae and A.A. Said and E.W. Van Stryland, Optics Letters, 14 (17), 1989.

2285094

Experimental characterization of devil’s vortex-lenses CALATAYUD A.1, REMÓN L. 1, CASANOVA C. 2, RODRIGO J.A. 3, FURLAN W.D. 2, MONSORIU J.A. 1 1 Universitat Politècnica de València/ 2Universitat de València/ 3Instituto de Óptica

Devil´s vortex-lenses (DVLs) are a new kind of vortex lenses in which the radial phase distribution is characterized by the ―devil‘s staircase‖ function. Recently, the influence of the topological charge on the focusing properties of these diffractive optical elements has been studied analytically [1, 2]. These lenses present a focal volume containing a delimited chain of optical vortices that are axially distributed following the self-similarity of the lens itself. In this contribution we present the first experimental results achieved with Devil´s vortex-lenses. These structures have been encoded onto a programmable spatial light modulator (SLM) and their focusing properties have been investigated. A very good agreement is obtained between experimental and theoretical results. It is suggested that the particular focal volume provided by DVLs could be profited as versatile and very efficient optical tweezers. [1] W.D. Furlan, F. Giménez, A. Calatayud, and J.A. Monsoriu, "Devil s vortex-lenses", Opt. Express, 17(24), 21891-21896 (2009). [2] W.D. Furlan, F. Giménez, A. Calatayud, L. Remón, and J.A. Monsoriu, "Volumetric optical traps produced by Devil s lenses", J. Europ. Opt. Soc, 5, 10037S(5) (2010).

2284757

Obtaining the wavefront in the Ronchi test without polinomial fit or trapezoidal integration AGUIRRE-AGUIRRE D., GRANADOS-AGUSTIN F. S., CORNEJO-RODRÍGUEZ A. Instituto Nacional de Astrofísica, Óptica y Electrónica

It is well known that the Ronchi test can be used to measure the optical path difference of a wavefront [1]. For recover the wavefront from an optical system under test we present a simple method to recovery the wavefront using one ronchigram without the need for polynomial fit or trapezoidal integration. The recovery of the coefficients of third aberration order is achieved by assigning random values but controlled in the equation of the optical path difference (OPD) which is given for a lateral sheared interferometer. Since the Ronchi test can be seen as a variation of this type of interferometer [2], the OPD for the Ronchi test is given as the difference between the original wavefront W(x,y) and the sheared wavefront W(x+∆x,y), resulting in the generation of various ronchigramas, which are compared with the ronchigram under analysis. The generated ronchigram with lower RMS (Root Mean Square) must have the highest correlation with the ronchigram analyzed, since the RMS is inversely proportional to the correlation. For some simulated ronchigrams which were generated by introducing Gaussian noise, some results will be shown. The proposed method retrieves in a reliable and accurate way the coefficients of the aberration polynomial of the analyzed ronchigram.

2284889

Fluorescent albumin holograms ORDÓÑEZ-PADILLA M.J., OLIVARES-PÉREZ A., BERRIEL-VALDOS L.R., MEJIASBRIZUELA N.Y., FUENTES-TAPIA I. INAOE

A characterization and analysis based on photosensitive films for holographic recording albumin. We carried out photo-oxidation of albumin "Gallus gallus" albumin-propylene glycol chemically combining with an aqueous solution of ammonium dichromate. It was to analyze the behavior of the parameter of diffraction efficiency holographic gratings made with and without eosin as a fluorescent agent, through the intensity pattern produced by diffraction gratings made with those products. 122

2284897

Holographic comparative study of glucose, pectin and sugar. ORDÓÑEZ-PADILLA M.J., OLIVARES-PEREZ A., BERRIEL-VALDOS L.R., FUENTESTAPIA I INAOE

A characterization of photosensitive films prepared with glucose, pectin and sugar (glass ®) environmental conditions for holographic recording. The photo-oxidation was carried out with ammonium dichromate in aqueous solution at various concentrations. It was the analysis of the behavior of diffraction efficiency parameter through the intensity diffraction pattern produced by holographic gratings made with the saccharides mentioned.

2285032

Directional holographic gratings: application to color and linear polarization multiplexing LUGO PÉREZ L. I., RODRÍGUEZ COBOS A. 1, RAMÍREZ FLORES G., GUEL SANDOVAL S., GUTIÉRREZ HERNÁNDEZ J. M. Instituto de investigación en Comunicación Óptica, UASLP

Directional holographic gratings: application to color and linear polarization multiplexing l.I. Lugo Pérez, A. Rodríguez Cobos, G. Ramírez Flores, S. Guel Sandoval, and J. M. Gutiérrez. Instituto de Investigación en Comunicación Óptica (IICO) Universidad Autónoma de San Luís Potosí, S.L.P. (UASLP), México [email protected] Utilizing light of different wavelength and holographic gratings made ex-profeso, whose spatial frequency is determined depending of what color is to be obtained in some also pre-determined direction, it is possible to multiplex information. Each wavelength can be modulated with a digital or analogical signal different; in such a way that multiple information can be sent simultaneously, using only one channel which can be an optical fiber. Demultiplexing is carried out using a similar grating, working backwards, allowing throughout an electronic system to recuperate the modulating information. It was been found that the system preserves the polarization of light, which give us a one more freedom degree, allowing us to process twice the original information amount.

2285067

Laser ablated glass microlens arrays: aberrations dependence on reflowing temperature J. ARINES2, D. NIETO1,2,3, M.T. FLORES-ARIAS1,2, C. GÓMEZ-REINO1,2, GERARD M. O’CONNOR3 1 Departamento de Física Aplicada (área de Óptica), Escola de Óptica e Optometría (Campus Vida), 15782 Santiago de Compostela, Spain 2 Grupo de Microoptica y Optica (GRIN), Unidad Asociada al Instituto de Ciencia de Materiales de Aragón, CSIC, Zaragoza, Spain 3 School of Physics, National Centre for Laser Applications, National University of Ireland, University Road, Galway, Ireland

crolens arrays fabrication has experienced a growing interest in the last decades due to their presence in a variety of applications which ranges from fiber couplers, to beam shapers or wavefront sensors. Among the various methods used to fabricate microlens arrays (thermal reflow forming, stereolithography, or embossing) the direct laser-writting technique provides several advantages: flexibility in terms of surface shapes, diameter, and focal length; the very small dead space between lenslet of any desired shape and profile; and the simplicity of the fabrication setup. And above all, this technique can operate with glass substrates, which

123

allows to fabricate microlens arrays with a high degree of simplicity and high chemical and radiation resistance, as well as thermal and mechanical stable.The Laser-direct writing technique combined with a reflowing thermal treatment has demonstrated its capability to provide microlens array with small diameter and good focusing capabilities. In this paper we analyze the influence of the thermal treatment at temperatures of 650ºC, 660ºC, and 670ºC, on the optical aberrations of the manufactured microlens arrays. We observed that by increasing the reflowing temperature we reduce the microlenses optical aberrations and increase the resemblance between microlenses. In particular at 670ºC we obtained high quality microlens arrays characterized with a root mean square aberration of λ/28 ± λ/77, strehl ratio of 0.9475± 0.0352 and depth of focus of 16.438± 5.762 µm. Our results show the reliability of the combination of the Laser-direct writing technique with thermal treatment for fabricating high quality microlens arrays.

2285169

Generation of irradiance patterns using a semi-spherical irradiance meter of two degrees of liberty TECPOYOTL-TORRES M.1, VERA-DIMAS J. G.1, ESCOBEDO-ALATORRE J. 1, SANCHEZ-MONDRAGON J. 2, TORRES-CISNEROS M.3, PÉREZ-CASPETA I. Y.1, VARONA J.4 1 Universidad Autónoma del Estado de Morelos/ 2Instituto Nacional de astrofísica, óptica y electrónica/ 3Universidad de Guanajuato/ 4Universidad panamericana campus bonaterra

Generation of Irradiance Patterns Using a Semi-spherical Irradiance Meter of Two Degrees of Liberty The mechanical arrangement of the meter is based on a mobile rectangular arc, where the photo-detector is mounted. One of two steps motor, located on the lateral side of the arc, allow to the sensor capable to describe semi-circular trajectories of 170˚, almost half meridians. The other one, located at the center of meter geometry, produces a mobile base of the illumination source under analysis, capable to rotate 360˚. These two motors allow obtaining a semi-spherical geometry where the sensor moves. The number of measure points is determined by the programming of the step motors respectively, while; the use of a single photo-sensor ensures uniformity in the measurements. The mechanical arrangement has the enough rigidity, in order to support the precision required for the acquisition stage, based on a DSPIC. Measurements of illumination sources with different sizes can be possible by using adjustable lengths of the base and the ring. Special attention has been given to the luminaries based on LEDs technology with divergent beams, due to the interest of an enterprise interested in our work, and in the characterization of its products. The received power by the detector is useful to obtain the irradiance profile of the lighting source under test. The meter has been designed and fabricated with recyclable materials, considered as electronic waste, making it a low cost prototype. Keywords: Irradiance meters, DSPIC applications, step motors, LED luminaries, mechanical arrangement, recyclable materials.

2285345

Characterization of planar waveguides fabricated by multiple sol-gel dip-coatings. REY-GARCÍA F.1, FLORES-ARIAS M.T.1, GOMEZ-REINO C.1, DE LA FUENTE X.F.2, BERNESCHI S.3, PELLI S.3, NUNZI-CONTI G.3, RIGHINI G.C.3 1 Universidad de Santiago de Compostela / 2ICMA/CSIC-Universidad de Zaragoza/ 3 Istituto di Fisica Applicata ―Nello Carrara‖

In this work we present planar waveguides obtained by sol-gel technique combined with dip-coating. The solgel method has been demonstrated to be suitable for controlling the chemical composition, and thus the refractive index of the layers fabricated. It is well established in the literature that a minimum thickness of the layer has to be achieved in order to use it as planar waveguide. We prepare planar waveguide of inorganic hybrid sols from Si, Ti and Ce organometallic precursors in order to obtain layer with different refractive index values. For fabricating waveguides with suitable thickness, a multiple sol-gel-dip-coating of SiO2:TiO2 and ZrO2:CeO2 sols, both in proportion 70:30 are developed. The waveguides are characterized by transmission electron microscopy (TEM) and energy dispersive X-ray analysis for performing the microstructural characterization. A homogeneous and continuous union between layers is achieved. This allows us to obtain a thick layer from the stacking of several thin layers. Confocal Microscopy was employed 124

to evaluate the surface roughness, which was measured to be 5.69 nm for SiO2:TiO2 and 7.21 nm for ZrO2:CeO2 coatings. Thicknesses of 1230 and 489 nm and refractive indices of 1.59 and 2.04 for SiO2:TiO2 and ZrO2:CeO2 waveguides were obtained, respectively, through optical studies by Spectroscopic Ellypsometry. Dark m-line Spectroscopy was employed to evaluate TE and TM modes at wavelengths of 635 and 1550 nm; observing different qualitative results depending on the sample studied. It was also observe that, zirconia-ceria films exhibit birefringence. Finally, the optical loss measurements allow us to confirm that these compositions can be employed as efficient waveguides

2285348

Santa Maria Degli Angeli Lucernaria prismatic lenses CUEVAS S.1, QUAGLIATA N.2, SIGISMONDI C.3, CHAPA O.4, PÉREZ F.4, TINOCO S.4 1 Instituto de Astronomía, Universidad Nacional Autónoma de México 2 Quagliata Studio 3 University of Roma, La Sapienza, ICRA, Dept. of Physics 4 Instituto de Astronomía, Universidad Nacional Autónoma de México

Santa Maria degli Angeli Basilica was built in 1561 in part of the remains of the Diocletian Baths by Michelangelo Buonarroti. In the last 300 years two astronomical instruments have been installed in the Basilica. The Clementina sundial line and the Divinity in Light Lucernaria. Clementina sundial line was built in 1702 in order to test the parameters introduced by the Gregorian reformation (1582) of the Calendar. Divinity in Light Lucernaria is an artistic stained glass dome including prismatic lenses designed to project detailed images of the sun on the church floor for the visitor´s delight. Sun images are centered on the Lucernaria rotunda in different colors at the solstices and equinoxes. Furthermore, a Venus transit and partial sun’s eclipses have been registered with the lenses and the image’s ephemeris verified in the last years. In this work the Lucernaria prismatic lenses and opto-mechanics are described. Also there are shown the yearly observations carried out for system verification. Diocletian baths were built in 305 A.D. Therefore we conclude that we implemented an optical instrument on a 1700 years old building

2285365

Holograms of albumin with gentian violet. DORANTES-GARCÍA V., OLIVARES-PÉREZ A., ORDÓÑEZ-PADILLA M.J. , MEJIASBRIZUELA N.Y. INAOE

A characterization and analysis based on photosensitive films for holographic recording albumin. We carried out the albumin photo-oxidation ―gallus gallus" albumin-propylene glycol chemically combining with an aqueous solution of ammonium dichromate. It was to analyze behavior of diffraction efficiency parameter from holographic gratings made with and without gentian violet dye, through intensity diffraction pattern produced by the gratings made from such products.

2285500

Refractive-index dispersion of absorbing and turbid solutions SANCHEZ-PEREZ C, GARCIA-VALENZUELA A CCADET, UNAM

Refractive-index dispersion of absorbing and turbid solutions Celia Sánchez-Pérez and Augusto GarcíaValenzuela Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Apartado Postal 70-186, Distrito Federal 04510, México. ABSTRACT We describe a method for measuring the reflectance as a function of the angle of incidence of liquid solutions in a spectral range from 400nm - 900 nm. The method is based on measuring the reflectance spectra of an optical beam of white light in an internal reflection configuration near the critical angle defined by the refractive indices of the incident medium (a glass prism) and that of the solvent, which is assumed to be transparent. From a few reflectance 125

spectra taken near the critical angle with the pure solvent and the solution, the dispersion of the contribution to the refractive index of the solute (the sample) can be obtained. We analyzed the prediction of the Fresnel‘s equation for both absorbing solutions where the critical angle is not well defined in a conventional way and for turbid media where the sample is not homogeneous on the wavelength scale. We present experimental results with solutions of rhodamine 6G dissolved in methanol and dielectric particles of SiO2 in distilled water. Keywords: Refractive-Index Dispersion, Anomalous Dispersion, Reflectance Spectra, Internal Reflection, Critical Angle

2285723

Interferometric analysis of polishing surface with a petal tool SALAS-SANCHEZ ALFONSO J.1, LEAL-CABRERA IRCE2, PERCINO-ZACARIAS ELIZABETH1, GRANADOS-AGUSTIN FERMIN S.1 1 Instituto Nacional de Astrofísica Óptica y Electrónica./ 2Instituto Tecnológico Superior de Tepeaca

In this work, we described a phase shift interferometric monitoring of polishing processes produced by a petal tool over a spherical surface for obtained a parabolic surface. In this process, we used a commercial polishing machine; the purpose of this work is to have control of polishing time. To achieve this analysis, we used a Fizeau interferometer of ZYGO Company for optical shop testing, and the Durango software from Diffraction International Company. For data acquisition, simulation and evaluation of optical surfaces, we the start polishing processes with a spherical surface with 15.46 cm of diameter; a 59.9 cm of with radius curvature, for obtained the parabolic surface with f/# 1.9.

2285844

Opto-mechanical fabrication of the spectrometer for the edifise project ARREDONDO-VEGA L., PEREZ-SANTOS C., POMPA-CARRERA O., RUIZ-MARQUEZ A., HURTADO-ORTEGA J., PAEZ G. Centro de Investigaciones en Óptica A. C.

The purpose of this paper is to present the development of the optical, mechanical and thin film coatings for the camera and collimator of the EDiFiSe (Equalized and Diffraction-limited Field Spectrograph Experiment) spectrometer made at Centro de Investigaciones en Óptica, Leon Guanajuato Mexico facilities. EDiFiSE is a prototype instrument developed by the Instituto de Astrofisica de Canarias (IAC) that will cover part of the visible up to the near infrared (400 to 1000 NM) and will be used in projects related with the Gran Telescopio de Canarias (GTC) and/or the Extremely European Large Telescope (42 m EETL). This spectrograph has 22 high precision optical components made from glasses of different refraction index, diameter and thickness.

2285880

Measurements of surface optical anisotropies of semiconductors with a multichannel spectrometer NÚÑEZ-OLVERA O.F., BALDERAS-NAVARRO R.E., ORTEGA-GALLEGOS J., LASTRASMARTÍNEZ L.F., LASTRAS-MARTÍNEZ A. Universidad Autónoma de San Luís Potosí

We report on a 32-channel spectrometer for acquiring optical reflectance-anisotropy spectra in a sub-second time-scale. The spectrometer is based on a photoelastic modulator for light polarization modulation, a 32channel photomultiplier for light detection and a lock-in amplifier for signal processing, and uses commercial analog switches for scanning the photomultiplier channels. Its performance was tested by measuring the well known E1 en E1+D1 signatures associated to optical anisotropies of different semiconductor samples in the visible-ultraviolet spectral region. The proposed system is compact and economical as it. Furthermore, the system is well suited to be used for in-situ studies of the kinetics of surface processes in cubic semiconductors, such as those occurring during molecular beam epitaxy growth.

126

2285961

Design and implementation of a prototype micropositioning and fusion of optical fibers VEGA F., TORRES C.O., MATTOS L. Universidad Popular del Cesar

We developed an automated system in micro and optical fiber fusion, using stepper motors of 3.6 º (1.8 º Medium step) with a threaded system for displacements in the order of microns, a LM016 LCD for User message management, a PIC16F877A microcontroller to control the prototype. We also used internal modules of the PIC: TMR0, EEPROM, PWM (pulse Ashura modulation) control using a pulse discharge circuit apocopated the high voltage (20 to 35 kilovolt transformer for FLYBACK fusion) the USART (Universal Synchronous Asynchronous Receiver Transmitter) for serial interface with the PC. The software platform developed under Visual Basic 6.0, which lets you manipulate the prototype from the PC. The entire program is optimized for microcontroller interrupt, macro-functions and is written in MPLAB 7.31. The prototype is now finished.

2286007

Self assembled monolayer, as optical transducers, using spiropyran photochromic material ORTIZ A.1, DELGADO R.2, ROJAS M.2, LÓPEZ V.2 1 CIBA TLAXCALA/2CIBA IPN TLAXCALA

The self assembled monolayers (SAM) have become in the most popular strategy for design and generate surfaces charaterizated by specific functional organic groups. The aimed of this work is applied this SAM as optical transducer in biosensors. The techniques, Infrared (in ATR mode) and UV/Vis spectroscopy have been used to study the films generated in each step in the self assembled process. The SAM was generated as follow; first silane group was added to the glass substrate. After that, the substrates were immersed in a solution containing carbomiide group (EDC). Finally the spiropyran 1′,3′-Dihydro-8-methoxy-1′,3′,3′trimethyl-6-nitrospiro[2H-1-benzopyran-2,2′-(2H)-indole] was attached to functionalized slides. In each process absorbance was analyzed by UV/Vis (270 to 500 nm) and FTIR (650 to 1800 cm-1). In UV, the spectra shows an absorbance band centered at 280 associated to EDC film and a lower intensity band centered at 380 nm associated to spiropyran. In FTIR spectra, the Si-Si and Si-O bond are present below the 1250 cm1. The EDC film shows very weak bands in the region from 1300 to 1800 cm-1. For the spiropyran film the band associated to the C-N, N-O, C=C, C-H and aromatic ring have a very well defined peaks. Once the transducer bands were detected, a biologic element (glucose oxidase) was added to the spiropyran by electrostatic attraction and the biosensor was finally tested by the enzyme high selectivity to the glucose in a water solution.

2286045

Fabrication and study of the optical and electronic properties of organic thin film based on the P3HT:PCBM blend SANCHEZ A.A., ALEMAN K., MANSUROVA S., KOSAREV A. National Institute for Astrophysics, Optics and Electronics

Research in new materials for photovoltaic applications has been focused recently on organic photoconductors. One of the most successful of them is the blend of P3HT:PCBM where Poly (3hexylthiophene) (P3HT) works as donor material and [6, 6]-phenyl-C61-butyric acid methyl ester (PCBM) works as acceptor material. In this work we report on fabrication process of organic thin films based on this mixture varying fabrication parameters such as annealing temperature, weight ratios of the components, and film thickness. Optical and electronic properties of the film such us optical absorption spectra, refractive index, temperature dependence of dark conductivity and transport parameters (mobility life-time product, photoconductivity response time, drift mobility) have been studied experimentally. Optical absorption spectra have been measured in the VIS-NIR range where and optical gap, Urbach energy and absorption coefficient 127

of the thin films have been evaluated. Dark conductivity measurements have been performed at different temperatures using a Keitley 6517A Electrometer. For evaluation of the material transport parameters dynamic grating technique based on excitation of alternating current in the photoconductor illuminated by oscillating interference grating have been used. Finally, the correlation between fabrication parameters and photoelectric properties of the material have been discussed. 2286053 Quantification of critical parameters for a rotational shearing interferometer to detect extra solar planets GALAN M., STROJNIK M., PAEZ G. Centro de Investigaciones en Óptica, A.C. Currently, there is an increasing interest in the detection of extra solar planets by direct methods. In the last years, more than 500 planets have been discovered by means of indirect methods: carefully analyzing the effects generated by the planet on the host star. However, the small signal-to-noise ratio and the small angular separation of the star-planet system have hindered the direct detections of the optical / IR signals caused by the planets. Several methods have been proposed to reduce the star irradiance and detecting the presence of the planet around them. One proposal is the rotational shearing interferometer (RSI). The concept of the RSI is based on the idea of comparing a wavefront to a rotated version of itself. The RSI takes advantage of rotational symmetry of the star‘s wavefront to cancel it. We proposed a RSI based on a Mach-Zehnder interferometer with a Dove prism in each arm. In this work, we quantify, employing exact ray trace, the critical parameters for this RSI to detect extra solar planets.

2286082

Characterization by XDR of amorphos SiCx/C-SI structures at high temperatures TORRES IVALDO TORRES I. Pamplona University

By annealing thin hydrogenated amorphous silicon carbide (a-SiCx:H) films deposited by Plasma Enhanced Chemical Vapor Deposition (PECVD) on crystalline silicon (c-Si) wafers, pn-junctions with very low inverse saturation current can be formed. This has been shown in heterojunction bipolar transistors and solar cells. The characterization of the annealed structures indicates that the a-SiCx:H films partially recrystallize during the annealing process forming Si-nanocrystals embedded in the amorphous film. To better understand this process and to further improve pn-junction we are studying the recrystallization process by X-Ray Diffraction (XRD) measurements and optical transmission measurements in the infrared (FTIR). This paper deals with characterization of amorphous SiCx/c-Si structures of 300 and 100 nm thick by x-ray diffraction with temperature camera during of an annealing process at high temperatures (900 °C). Both, intrinsic and phosphorus-doped a-SiCx:H were deposited on a c-Si substrate type-p of 300um-thick and crystallographic orientation with a cylindrical parallel plate PECVD reactor. From the in-situ measures by the equipment XDR was obtained the phase crystallization; take the max value of intensity of the peak dominant in the orientation and normalizing. Fitting with the Avrami-Mehl-Johnson theory for random nucleation and growth of crystallites of the a-SiCx:H films. Obtained the nucleation time and the growth time, assumes in the analysis thermally activated.

2286117

Opto-mechanical characterization of a solar concentrator prototype CRUZ –MARTÍNEZ V.M.1, SANTIAGO – ALVARADO A1, GONZÁLEZ-GARCÍA J1, CAMPOS GARCÍA M2, VÁZQUEZ – MONTIEL S3, GRANDOS-AGUSTÍN F.S.3, VÁZQUEZ MEJIA T. G.1 1 Universidad Tecnológica de la Mixteca/2Universidad Nacional Autónoma de México/ 3 Instituto de Astrofísica, Óptica y Electrónica

Solar concentrators are devices typically used to produce steam to heat a fluid with solar radiation. Solar concentrators are composed of a reflective surface collector, a receiver, a fluid, and a system of electromechanical control for solar tracking and control of fluid pressure. Generally the collector surface is made of 128

a polished metal plate or an aluminum plate and a reflective film. In this paper, we present the design of a solar concentrator of the parabolic channel type, but the collector employed is made of an acrylic plate with a reflective surface. The opto-mechanical performance of the solar concentrator is presented. Finally, we the experimental results are

2286121

CdSe/CdS multilayer films for optoelectronic devices LÓPEZ-RAMÍREZ L.M.1, HERNÁNDEZ-PÉREZ M.A.1, AGUILAR-HERNÁNDEZ J.R.2, VARGAS-GARCÍA J.R.1, CONTRERAS-PUENTE G.2 1 Escuela Superior de Ingeniería Química e Industrias Extractivas - Instituto Politécnico Nacional/2Escuela Superior de Física y Matemáticas - Instituto Politécnico Nacional

CdSe/CdS multilayer films were prepared on Corning glass substrates by Chemical Bath Deposition (CBD) technique. The morphology and roughness of the substrates were modified by acid and alkaline agents in order to improve the adherence of the films. The multilayer films were characterized by UV-VIS spectrometry, X-Ray Diffraction (XRD), Energy Dispersive Spectroscopy (EDS), Photoluminescence (PL) and Atomic Force Microscopy (AFM) to know the optical, structural and morphological properties. The cohesion between films was improved at deposition temperatures of 90°C and 75°C for CdSe and CdS films respectively. The band gap of the multilayer films has an intermediate value (1.9 to 2.2) between the CdSe and CdS Band Gaps. The particle size in CdSe/CdS multilayer films is greater than the particle size in films grown separately, it generates a higher roughness. The films obtained showed good properties for optoelectronic devices. Keywords: Chemical Bath Deposition; Band Gap; CdSe/CdS multilayer films; optoelectronic devices. Agradecimiento: CONACyT (Beca Doctoral y Proyecto CB-82573) y SIP-IPN (20111207).

2286164

Improving the quantitative testing of fast aspherics surfaces with null screens using dijkstra algorithm MORENO-OLIVA V.I.1, CAMPOS-GARCÍA M.2, DÍAZ-URIBE R.2 1 Universidad del Istmo, campus Tehuantepec/2CCADET-UNAM

The null screen technique is a geometric method that allows the testing of fast aspherical surfaces, this method measures the local slope at the surface and by a numerical integration procedure, the shape of the surface is measured. One usual technique for the numerical integration is the trapezoidal rule; it is a wellknow fact that the truncation error increases with the second power of the average spacing between spots of the integration path. To reduce the numerical errors in this work we implemented the Dijkstra algorithm. This algorithm can find the shortest path from one spot to another spot in a weighted conected graph. Using a modification of the algorithm is possible to find the minimal length path from a select spot to all others. This result simplifies the integration process in the test with null screens. The performance of this method is shown by evaluating a previously tested surface with a traditional process.

POE Photonics and Opto-Electronics 2284148

Gaussian beams to calculate multimode interference in waveguides RODRIGUEZ-MORALES G. Universidad Autónoma de Nuevo León

In this work, we present an alternative analytical method to describe the multimode interference (MMI) in waveguides. It is common to use numerical calculation to simulate the MMI, but it usually requires a large amount of computational resources to obtain the simulation in the corresponding section of the waveguide. Our method is based in the propagation of multiple Gaussian beams that interfere between them to produce the self–image effect as it appears in the waveguide MMI phenomena. In this case, we can calculate electromagnetic field distribution at an arbitrary propagation distance without the need to calculate the field in 129

the entire waveguide section. This method simplifies the characterization of the MMI based devices as the multiplexor and the called optical fiber beam shaper.

2284511

Wavelength-switchable fiber laser based on temperature-dependent transmittance of an LPFG ANZUETO-SÁNCHEZ G.1, CASTRELLÓN-URIBE J.1, TORRES-GÓMEZ I. 2, MARTÍNEZRIOS A.2, OSUNA-GALÁN I.3 1 Centro de Investigación en Ingeniería y Ciencias Aplicadas CIICAp, Universidad Autónoma del Estado de Morelos. / 2Centro de Investigaciones en Óptica. / 3Universidad Politécnica de Chiapas.

A wavelength-switchable Erbium-doped fiber ring laser is demonstrated and reported. The Erbium-Doped fiber net gain of the fiber laser is modified by controlled heating of a Long Period Fiber Grating (LPFG) inserted into the laser cavity. The rejection band of the LPFG is altered in the resonant wavelength and loss according to the exposed temperature and consequently, the operating wavelength of the fiber laser can be switched from a single wavelength operation at 1563 nm to a simultaneous operation at 1527 nm and 1563 nm. The laser system can be used as temperature fiber sensor as well.

2284781

Tunable dual-wavelength fiber laser based on adjustment of cavity loss by a fiber optical loop mirror MANUEL DURAN SANCHEZ M. D. S.1, R. IVAN ALVAREZ TAMAYO R. I. A. T. 2, E. A. KUZIN E. A. KUZIN3, BALDEMAR IBARRA ESCAMILLA B. I. E.3, OLIVER POTTIEZ O. P.4 1 Universidad Tecnológica de Puebla/ 2Benemerita Universidad Autónoma de Puebla/3INAOE/ 4Centro de Investigaciones en Óptica A.C

We experimentally demonstrate tunable dual wavelength operation of a fiber laser through adjustment of cavity loss using a Fiber Optical Loop Mirror (FOLM) with a high-birefringence fiber in the loop. The reflection adjustment of the FOLM was achieved by temperature control of the hi-bi fiber. The spectral spacing has been tuned from -1.98 to 5.2 nm with a tunable fiber Bragg grating. A temperature change of the hi-bi fiber by 0.1º C causes a change in the ratio between the reflectances for the wavelengths, R(λ1)/R(λ2). The output stability has been experimentally analyzed.

2284977

Optical characterization of LiBr-water using MMI in optical fiber ANTUNEZ-CERON E.E.1, ESTRADA-VAZQUEZ J.A.1, BASURTO-PENSADO M.A.2, SANCHEZ-MONDRAGON J.J.2, GARCIA-CASTREJON J.C.1 1 Universidad Autónoma del estado de Morelos/2Instituto nacional de Astrofisica, Óptica y Electrónica

Optical Characterization Of LiBr-Water Using MMI In Optical Fiber E. E. Antúnez-Cerón1, J. A. EstradaVázquez1, M. A. Basurto-Pensado2, J.C. García-Castrejón1, J.J. Sánchez-Mondragón2 1 Universidad Autónoma del Estado de Morelos 2 Instituto Nacional de Astrofísica, Óptica y Electrónica Heat pumps work with a refrigerant mixture of lithium bromide (LiBr) with water, depending on the concentration of this solution may adjust the efficiency of the heat pump, reason why this research presents the analysis of LiBr concentration using the optical technique: multimode interference (MMI) in a singlemode-multimodesinglemode (SMS) fiber structure, wherein the singlemode sections are SMF-28 fiber with a core diameter of 9 µm and a cladding diameter of 125 µm and a multimode fiber which has a 125 µm core diameter without coating (refractive index 1.4615), this is the sensing area. The LiBr-Water solution analyzed has a concentration ranging from 45% to 60% and refractive indices between 1.423 and 1.472, respectively. This range of refractive indices on the exposed fiber gives rise to variations in the modes coupling into the MMI section. The fiber is mounted on acrylic plates with a compartment for the sensing section, so that the core of 130

the multimode section interacts with LiBr-Water solutions at different concentrations. The measurements are acquired with low cost equipment that includes a 1554 nm diode laser as the source of the system (operated at constant current) and a photodiode connected to a data acquisition card.

2285097

High-visibility photonic crystal fiber interferometer for ultrasensitive refractometric sensing FERNANDO C. FÁVERO F. F.1, VITTORIA FINAZZI V. F.2, JOEL VILLATORO J. V.2, VALERIO PRUNERI V. P.2 1 Pontifical Catholic University of Rio de Janeiro/ 2ICFO-Institut de Ciences Fotoniques

A simple, compact photonic crystal fiber interferometer (PCF) that operates in reflection mode is proposed for refractive index (RI) sensing. The device consists of a ~12mm-long stub of commercial PCF (LMA-10) fusion spliced to standard optical fiber (SMF-28). Two collapsed zones in the PCF allow the excitation and recombination of specific modes in the PCF. This makes the device reflection spectrum to exhibit interference patterns with extinction ratio of up 40 dB. One of the excited modes in the PCF is sensitive to external RI for which the device can be useful for refractrometry and sensing based on RI changes. The measuring range goes from 1.33 to 1.43 which can be measured in two different ways. The shift of the interference pattern can be monitored as a function of the external index. In this case, the maximum shift is less than the interferometer period for which there is not ambiguity in the measurements. If a shift of 50 pm in the interference pattern can be resolved, then the maximum sensitivity and resolution are, respectively, 735 nm per RI units and 7x10-5. The other approach consists of monitoring the reflection power of a wavelength located at the quadrature point of the inference pattern. In this case the measuring range is narrower but the resolution is higher, up 7x10-6, thanks to the high extinction ratio. We believe that the device proposed here can be useful for industrial and biosensing applications. Monitoring RI changes, for example, is important in the chemical, food and beverage industries since it is part of the quality control. On the other hand, molecular bindings, chemical or biochemical reactions are manifested and detected as minute refractive index changes. Investigation of our interferometer for biosensing applications is being carried out and some results will be presented during the conference.

2285160

Vitrification of photocuring resins by embedded cantilever and Fizeau interferometer ARENAS G.F.1, DUCHOWICZ R.2 1 Laboratorio Láser, Facultad de Ingeniería, Universidad Nacional de Mar del Plata, Argentina./2Facultad de Ingeniería, Universidad Nacional de La Plata / Centro de Investigaciones Ópticas (CCT CONICET La Plata-CIC), La Plata, Argentina

We present a method for estimating viscosity and degree of vitrification of photocuring polymeric materials. Real-time knowing of solidification transition provides important information for many scientific areas. The technique involves the embedding of one end of a small aluminum cantilever subjected to oscillations of constant amplitude and frequency, into blends made of unfilled dental resins based on bis-GMA-TEGDMA. These resins were activated for visible light polymerization by the addition of camphorquinone (CQ) in combination with dimethylamino ethylmethacrylate (DMAEMA), or ethyl-4-dimethyl aminobenzoate (EDMAB). As the polymerization process progresses, the embedded end of the beam ceases to be free. The variation in the oscillation amplitude measured by means of a Fizeau fiber optic interferometer at a given point near the lower end can be interpreted as a proportional indicator of solidification in the resin being photo cured. This feature provides a vital support in the early stages of photo-polymerization. From the results, we observe that the resin passes from liquid to gel and then to a vitreous state resin in a short time compared with the total photocure evolution. After this short transition, polymerization should take place mainly through diffusive processes.

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2285838

Optical channel waveguides in ND: YVO4 crystals by multi-implants with protons SANCHEZ-MORALES M E1, VÁZQUEZ G.V.2, RICKARDS J3, TREJO-LUNA R3 1 CUCienega Universidad de Guadalajara/ 2Centro de Investigaciones en Óptica A.C/ 3 UNAM

Optical channel waveguides in Nd:YVO4 crystals by multi-implants with protons M.E. Sánchez-Morales a,*, G.V. Vázquez b, J. Rickardsc and R. Trejo-Lunac a Departamento de Ciencias Básicas, División de Biotecnología Centro Universitario de la Ciénaga Universidad de Guadalajara, Avenida Universidad 1115, Lindavista, 47820 Ocotlán, Jalisco, México. b Centro de Investigaciones en Óptica, Loma del Bosque 115, Lomas del Campestre, 37150 León, Guanajuato, México c Instituto de Física, Universidad Nacional Autónoma de México D.F. México This work reports the formation of channel waveguides by proton implantation in Nd:YVO4. Three sets of channels were generated with widths of 10, 15 and 20 microns. Two implants were realized using energies of 1.06 and 1.0 MeV at 8° in order to form deep wide barriers, and another implant was made at 70º with the energy of 1.0 MeV, thus generating buried waveguides. The implanted doses were 5-7x1015 ions/cm2. The analysis includes refractive index profiles, spectroscopic properties and near field imaging. This work has been partially supported by PROMEP under project PROMEP/103.5/_08/2919 Keywords: Channel waveguides; Ion implantation; Nd:YVO4

2285867

Study of laser channel waveguides in Nd:YAG crystals obtained by proton implantation FLORES-ROMERO E.1, VAZQUEZ G.V.2, MARQUEZ H.3, LÓPEZ-URQUIETA M.A.2, RANGEL-ROJO R.3, RODRÍGUEZ-FERNÁNDEZ L.1 1 Instituto de Física, Universidad Nacional Autónoma de México/ 2Centro de Investigaciones en Óptica A.C/ 3Departamento de Óptica, CICESE

Ion implantation is a powerful tool to obtain optical channel waveguides in several substrates. The damage caused in the substrate by the ions while they are stopped can be used to form waveguide structures. Waveguides with different properties can be obtained depending of the implanted ions and of the substrates. When the implantation is performed over a laser crystal then the waveguide formed can be capable of support laser oscillation. In this work we report a study of the optical properties of laser channel waveguides fabricated in Nd:YAG crystals by proton implantation at different implanted doses. The protons were accelerated to the energy of 1.0 MeV in the Pelletron Accelerator of the Physics Institute at UNAM, then they were implanted over several Nd:YAG crystals at an implantation angle of 60 degrees. The implanted doses were between 0.5-4.0x10^16 proton/cm^2. By these processes three sets of channel waveguides with different widths were obtained for every implanted dose, this allows us to make a statistic treatment for the properties studied. The optical properties studied were the optical transmission and the transversal modal distribution at visible wavelengths, the photoluminescence spectra and the laser emission. The laser performance was obtained in a resonant cavity configuration with mirrors held onto the polished end faces of the waveguides.

2286069

Metal-germanium-metal photodetectors integrated with dielectric waveguides CERVANTES-GONZALEZ J.C. 1, AHN D. 2, TORRES-JACOME A. 1, BANERJEE S.K.3, ZALDIVAR-HUERTA I.E.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Alcatel-Lucent/ 4University of Texas at Austin

Metal-semiconductor-metal (MSM) Ge photodetectors integrated with dielectric waveguides using topcoupling configuration have been experimentally demonstrated. Responsively about 0.37 A/W at wavelength of 1.55 um and a dark current about 1 uA at 1 V were obtained. It is shown that top-waveguide-coupled MSM photodetector offers technological process compatible with CMOS for intrachip optical communications.

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2286073

Measurement of group velocity dispersion in optical fiber with a hundreds of meters lengths RAMOS-BELTRÁN J., BELTRÁN-PÉREZ G., MUÑOZ-AGUIRRE S., CASTILLOMIXCÓATL J. Benemérita Universidad Autónoma de Puebla

In this work an experimental setup that allows evaluating the group velocity dispersion (GVD) in optical fibers with a hundreds of meters length is presented. The setup was composed by an optical fiber Sagnac Interferometer, SI. The optical fiber under test and a phase modulator were placed inside of the SI loop. The main idea is to place asymmetrically the phase modulator inside the SI loop. This means that the fiber length in both sides of the phase modulator, L1 and L2, satisfy L13 1 Opto Eletronica- Brazil 2 IFSC-USP/Opto Eletronica – Brazil 3 EESC-USP- Brazil

One of the widely used methods for performance assurance of an optic system is the determination of the Modulation Transfer Function (MTF). The MTF represents a quantitative and direct measure of image quality, and, besides being an objective test, can be used on concatenated systems. This paper presents the development of a software called SMTF, on C++ and Open CV platforms, for MTF calculation on electrooptical system. Through this method, the performance of a digital fundus camera, an infrared sensor and an optometric surgery microscope will be analyzed. The MTF information supports the analysis of the optical system alignment, and also defines its resolution limit by the MTF graphic, with the CCD or sensor. The results obtained from the implemented software will be compared with the theoretical MTF curves from the analyzed systems. 2286100 Software configurable optical test system for refractive optics DOMINGUEZ M.Z.1, WANG L.1, SU P.1, PARKS R.E.1, BURGE J.H.1 1 University of Arizona SCOTS (software configurable optical test system) is a new tool that can provide lens manufacturers with the ability to fully evaluate lens systems, or individual lenses performance without the use of complex metrology systems and setups. This technique is based on measuring the slopes of rays to obtain curvature information using transmission deflectometry, the refractive equivalent of reflection deflectometry. As in the case of previously reported results for SCOTS in the reflection mode1, we are investigating phase shifting methods for data collection and reduction from a Hartmann /Hartmann–Shack perspective as well as investigating slope data calculation and unwrapping with centroiding and line-scanning methods. Results on reflective surfaces, such as the primary mirror of the Giant Magellan Telescope (GMT) show that the test has a large dynamic range in which measurement accuracy is comparable with interferometric methods. Initial wavefront measurements of refractive elements, such as a 1‖ diameter biconvex BK7 lens, show good agreement when comparing them with equivalent ZEMAX wavefront measuring models, which match the measured parameters, where the estimated and measured RMS values and Zernique coefficients agree to within a few percent. The alignment of the setup was done crudely and quickly and used a screen which had a pixel pitch of 0.1905mm to generate green scanning fringes. The camera used for the measurements was a simple digital CCD camera. The technique was shown to be repeatable to within a few percent. More work on adjusting the experimental setup and the ZEMAX model is being performed to reduce the disagreement between these results and generate more faithful models. 1 Peng, S., et. Al., ―Software configurable optical test system: a computerized reverse Hartmann test‖, Applied Optics, Vol. 49, pp 4404-12. 241

POE 6 Photonics and Opto-Electronics 2284995

Thermocavitation: a novel method of cavitation produced by CW lasers RAMIREZ-SAN-JUAN J.C.1, PADILLA-MARTINEZ J.P2, PLACIDO-ZACA P.1, RAMOSGARCIA R1 1 INAOE/ 2Fisicoquímica de materiales, ICUAP-BUAP

Cavitation is a well known phenomenon studied since the end of the last century by Lord Rayleigh. It consists in the formation, growth and collapse of vapour/gas bubbles produced when the liquid is broken. Depending on breaking mechanism, cavitation can be classified in four types: acoustic, hydraulic, particle and optic. The most important feature of cavitation occurs at collapse where bubbles produce shockwaves in the range of MPa to GPa. These high pressure waves are responsible for the damage on ship propellers and water pipes. Cavitation may have useful applications in particular ocular surgery, photolithotripsy, photolithography, and military applications. In this paper, we will focus on new cavitation mechanism termed thermocavitation produced with low power CW lasers in highly absorbing solutions. In particular, we studied thermocavitation in saturated solution of copper nitrate salts. However, bubbles can be obtained in any solution with sufficient absorption coefficient. Cavitation bubbles are produced in contact with the substrate due to the large attenuation distance. The bubble‘s dynamics is studied in detail showing that bubble lifetime is around 100 microseconds and maximum radius of ~300 micrometers for a power of ~80 mW. The pressure waves are studied and optimized to produce controlled damage on dielectric and metallic thin films opening the possibility to create nano-holes and patterning. A numerical model based on superheating has been developed and we show that heat diffusion plays a critical role on the amplitude of the shockwave

2284744

Beam modulated fanning in a crystal BaTiO3 RUBIO SAAVEDRA L.A., MÁRQUEZ AGUILAR P.A., ZAMUDIO LARA A., VERA DIMAS J.G. 1 Facultad de Ciencias Químicas e Ingeniería de la Universidad Autónoma del Estado de Morelos/ 2Centro de Investigación en Ingeniería y Ciencias Aplicadas

Beam Modulated Fanning in a Crystal BaTiO3 L. A. Rubio Saavedra1, P.A. Márquez Aguilar2, A. Zamudio Lara2, J. G. Vera Dimas1, 1. FCQeI, Autonomus University of Morelos State, Av. Universidad 1001, C.P. 62209, Cuernavaca, México. 2. CIICAp, Autonomus University of Morelos State, Av. Universidad 1001, C.P. 62209, Cuernavaca, México. Beam fanning is a very studied effect for the implications thereof in the hologram recording process, the process is the division into multiple beams in different directions of a coherent incident beam into a photorefractive crystal, allowing their possible application as a router to modulate the input beam. We report the characterization of this effect modulating spatially a Gaussian beam to λ=532 nm in a crystal Batio3:Rh. Our results show that for a specific input polarization beam there is a dependency between the number of channels and their orientations with respect to frequency of modulation, in addition to the bundles filaments retain the modulation of the input beam in a wide range (approximately 1 kHz) of oscillation frequencies, although with different amplitudes.

2284983

Highly efficient photorefractive polymers doped with Cyano non-linear chromophores HERRERA V.M.1, MALDONADO J.L.1, RODRIGUEZ M.1, RAMOS-ORTIZ G.1, MENESESNAVA M.A.1, BARBOSA-GARCIA O.1, SANTILLAN R.2, FARFAN N.3, LACROIX P.4 1 Centro de Investigaciones en Óptica A.C/ 2Departamento de Química, CINVESTAV/3Facultad de Química, UNAM/ 4Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077, Toulouse, France

Nonlinear organic materials for the fabrication of polymers with photorefractive (PR) properties are the subject of extensive research by their potential applications in real-time optical processing, i.e., image 242

correlation, image amplification, dynamic volume holography, phase conjugated mirrors, etc. [1,2]. This work reports new highly efficient organic photorefractive polymers based on aryl-cyano non-linear chromophores [(4-(diethylamino)-2-hydroxybenzylideneamino]benzonitrile (CN-C-OH) and [4(diethylamino)benzylideneamino]benzonitrile (CN-S-OH). The PR polymer blends are composed by the photoconductor poly (9-vinylcarbazole) and plasticizer 9-ethylcarbazole PVK:ECZ matrix, as well as the sensitizers C60. PR samples with concentrations of 20, 25, and 30 wt. % of chromophores were prepared. Holographic experiments in a tilted four wave mixing (FWM) and two beam coupling (TBC) geometry were carried out by using a 10 mW He-Ne laser (633 nm). The experiments were performed at room temperature to measure the electric field steady-state diffraction efficiency dependence of the PR composites. High diffraction efficiency up to 90 % was observed for polymers based on CN-C-OH chromophore at 25 wt. % doping level and an external applied electric field around 56 V/μm. A computational investigation for the cyano chromophores structures showed a bent conformation. The first hyperpolarizability as the μβ product was also measured by EFISH technique for the chromophores, results showed that CN-C-OH presents a value 3.5 times higher than CN-S-OH. Demonstrations of fast reversible holographic imaging and optical phase conjugation are presented. [1] P.-A. Blanche et al. Nature, 468, 80 (2010) [2] J.L. Maldonado et al., J. Phys. D: Appl. Phys. 42, 075102 (2009). Acknowledgments: CONACyT

2285877

Analysis and study of optolectronics characteristics of INP photodetectors MUÑOZ ZURITA A.L.1, CAMPOS ACOSTA J.2, MARIN CARDENAS J.M.1, LARRUQUERT J.I.2 1 Facultad de Ingeniería Mecánica y eléctrica. U. Torreón Universidad Autónoma de Coahuila/ 2Instituto de Física Aplicada IFA-CSIC

The InP-photodiodes from different manufacturers have got rather low noise level, good response uniformity over the sensitive surface and a wide dynamic range. As in any photodiode, the spectral short-circuit responsivity is determined by the wavelength and the photodiode‘s reflectance and internal quantum efficiency. Then if these quantities were known, the photodiode‘s responsivity would be known without being compared to another standard radiometer; i. e. the photodiode would be an absolute radiometer for optical radiation measurements. This idea was firstly developed for silicon photodiodes in the eighties, once the technology was able to produce low defects photodiodes. Following this reference, the reflectance could be approached from a superimposed thin layers model. By knowing the thicknesses of the layers and the optical constants of the materials, it is possible to determine the device reflectance. However, this information is not completely available for InP photodiodes: the actual thickness of the layers is not known and optical constants of materials are only approximately known for bulk. Nevertheless it‘s possible to measure reflectance at some wavelengths and to fit the thicknesses of a layer model that would reproduce those experimental values. Therefore the attainable scope at present is just to obtain a model to be able to calculate spectral responsivity values at any wavelength. To get this, a model has been developed to calculate reflectance values from experimental ones at some wavelengths and another model has been developed to interpolate spectral internal quantum efficiency values from some values got from reflectance and responsivity measurements at some wavelengths. Both models will be presented in this communication.

2285917

Optical fiber communication system employing multiplexed with a Bragg grating. ANA PALOMINO LENGUA A.L.1, CESAR TORRES MORENO C.T. 2, ANNY JULIETH PRECIADO MOLINA A.J.1, LORENZO MATTOS VASQUEZ L.M.2 1 Universidad Popular del Cesar 2 Grupo LOI Universidad Popular del Cesar In this paper, an experimental investigation on optical fiber communication system is presented, the assembly used multiplexed with conventional Bragg gratings (BG); the communications device includes two laser of different wavelengths, bifurcated fiber and diffracting element (BG) that diffracts the optical signal onto optical paths separated. The light emitted by each laser is modulated with help of mirrors placed over speakers, injected on the bifurcated fiber and finally is directed toward a diffraction element to obtain a multiplexed optical transmission. 243

POE 7 Photonics and Opto-Electronics 2285492

Polarization entangled photon pair generation in optical fibers with birefringence ZHANG WEI, ZHOU QIANG, WANG PENGXIANG, HUANG YIDONG, PENG JIANGDE Tsinghua University

In recent years, spontaneous four photon scattering (SFPS) in optical fibers focus much attention for its potential in realizing high efficient correlated/entangled photon pair generation at 1.5 micrometer. In this paper, we will introduce our recent works about polarization entanglement generation utilizing fiber birefringence. When the pulsed pump light passes through the optical fiber, two kinds of SFPS will take place simultaneously. One is scalar scattering processes, in which two annihilated pump photons and generated photon pair are all polarized along the same fiber polarization axis. The other is vector scattering processes, in which two annihilated pump photons are polarized along different fiber polarization axes, either to the two photons of the generated pair. If the fiber has large group birefringence, the intensity of vector scattering processes will be suppressed at the phase matching frequencies of the scalar scattering processes. On the other hand, the walk-off effect of the pump pulse components polarized along the two fiber polarization axes also suppresses the vector scattering processes in the case of long fiber. Hence, by proper pump polarization and signal/idle frequency selection, photon pairs can be generated only by the two independent scalar scattering processes in optical fibers with birefringence, which provide a simple way to realize polarization entangled photon pair generation. This paper shows our recent experiments of polarization entanglement generation using microstructure fiber with birefringence and dispersion shifted polarization maintained fiber. A twophoton interference with visibility higher than 89 percent is achieved without subtracting the background counting, showing its potential as high quality fiber based entangled photon pair source.

2285755

Measurement of the orbital stokes parameters of OAM waves RANDUNU PATHIRANNEHELAGE N.1, GUZMAN A.M.1, RHODES W.T.2 1 Florida Atlantic University/ Department of Physics/2Florida Atlantic University/ Department of Computer & Electrical Engineering and Computer Science.

The azimuthal structure of a light beam carrying orbital angular momentum (OAM) can be characterized by the orbital Stokes parameters [1]. We have implemented the experimental method described in [1, 2] to measure the orbital Stokes parameters for waves with different OAM. The orbital Stokes parameters are obtained as linear combinations of second-order moments of the electromagnetic field [1]. The matrix of second-order moments has ten independent elements, three of which can be measured directly as irradiance moments. We introduce four different phase space rotations, as described in [1, 2], and measure second-order irradiance moments of the OAM beam for four different configurations of an astigmatic optical system consisting of two identical positive cylindrical lenses whose relative orientation can be controlled by a rotator. From the set of measurements we can obtain all ten independent second-order moments of the OAM wave profile and calculate the orbital Stokes parameters. Computer generated holograms (CGHs) are used to produce OAM light with azimuthal charges varying from 1 to 15. A (lens-less) digital camera and appropriate MATLAB image-processing techniques were used to measure and calculate the irradiance moments at the output plane of the astigmatic optical system. We obtain the orbital Stokes parameters of the OAM waves as functions of the azimuthal charge. The different configurations of the optical system were achieved by mounting the two positive cylindrical lenses on an aluminum rotator where the axes of the lenses are free to rotate individually in the plane transverse to the optical axis of the system. The rotator is placed midway between the input and the output planes of the optical system. [1] T. Alieva and M. J. Bastiaans, ―Phase-space rotations and orbital Stokes parameters‖, Optics Letters Vol.34, No.4 (2009) [2] G. Nemes and A. E. Siegman, ―Measurement of all ten second-order moments of an astigmatic beam by the use of rotating simple astigmatic optics‖, J. Opt. Soc. Am. A Vol.11, No.8 (1994)

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2286027

Power dependent van der Waals interaction in cold atom reflection. ESTRADA G.1, GUZMÁN A.M. Florida Atlantic University

The role of Casimir forces in the fabrication and performance of micro- and nano-devices has motivated renewed interest on the realization of more precise experiments on ultracold atom reflection by evanescent wave (EW) mirrors [1], than those originally performed in the earlier days of the BEC [2]. The earliest measurement already showed large deviations of the cold-atom reflection probabilities from theoretical predictions as the intensity of the EW increased [2]. The more recent results confirm a discrepancy between the measured dependence of the barrier height on the EW power and theoretical predictions obtained from a non-retarded van der Waals-like potential, a retarded potential and the full QED potential [1]. This discrepancy is particularly large for all theoretical models based on a power-independent Casimir force at high EW intensities. In 2004 one of us introduced a theoretical model based on the quantum interaction between induced atomic dipoles to describe experiments involving atomic interactions in the presence of electromagnetic fields and found expressions for an intensity dependent van der Waals interaction [3]. We claim that the observed discrepancy arises from the assumption that the effective potential barrier results from the combined action of the repulsive optical dipole force due to the EW, and an attractive (powerindependent) Casimir force. We show that a power-dependent atom-wall interaction yields the linear behavior observed experimentally for the barrier height as a function of the EW power. [1] H. Bender, Ph.W. Courteille, C. Marzok, C. Zimmermann, and S. Slama, PRL 104, 083201 (2010). [2] A. Landragin, J.-Y. Courtois, G. Labeyrie, N. Vansteenkiste, C. I. Westbrook, and A. Aspect, PRL 77, 1464-1467 (1996). [3] A. M. Guzmán, Proc. SPIE, Vol 5622, p. 348-353, (2004).

2286046

Statistical properties of noisy multistable systems MARTÍNEZ-ZÉREGA B.E.1, PISARCHIK A.N.,2 1 Universidad de Guadalajara/2Centro de Investigaciones en Óptica.

We study statistical characteristics of coexisting attractors in a multistable map subject to additive noise and periodic modulation. We demonstrate how noise modifies the attractors and their basins of attraction of the Hénon map. The analysis of stochastic dynamics of the systems under external harmonic modulation shows a cooperative effect of noise on the multistability control method, inducing attractor selection. A preference of attractors is induced on the Hénon map working on a regime where three periodic solutions coexist (in addition to the infinity solution). Our study is done first by constructing the probability distributions of the different solutions as a function of noise. When averaging this probabilities some paths are observed on the number of point of the basins of attraction N as a function of noise D for each attractor. Besides, for the Hénon map a clear stochastic resonance appears if we consider the maximum value of the number of points on the basins of attraction of the probability distributions of the P3 solution, instead of the average. This resonance strongly depends on the modulation frequency since it is related to the relaxation oscillation frequency of the attractor.

2286149

Semiclassical quantum dots in their own micro cavity GARCIA-MELGAREJO J.1, SANCHEZ-MONDRAGON J.1, SANCHEZ-SANCHEZ S.1, MAGAÑA-LOAIZA O. S.2, TECPOYOTL-TORRES M.3, BASURTO-PENSADO M.3 1 Instituto Nacional de Astrofísica, Óptica y Electrónica/2Universidad de Rochester/ 3 CIICAP, Universidad Autónoma del Estado de Morelos

The growing development of structured materials makes us to consider the possibility of having Quantum Dots (QDs) in their own micro cavity. In this work we are considering a semiclassical approach to a pair of coupled Quantum Dots in their respective micro cavity. Each one is interacting only with their own local field but coupled among them trough their characteristic QD Dipole-Dipole coupling as in a QD Diatomic Molecule. While such interaction is real for QDs, often is introduced to model atomic entanglement, therefore producing an excellent laboratory for a comparative analysis. We develop a model that describes the 245

dynamics of such a physical system and we discuss its key features by means of the coupled Bloch associated to the problem. We derive the corresponding Bloch Equations, before and after RWA, and show that such coupling leads to additional nonlinear term, whose quantum coupling is disregarded in a factorization. In analogy to the Diatomic Molecule, we introduce the two modes solution and compare with the well known classical coupled oscillator. We numerically analyze the specific cases of coherent and thermal fields, constant and Gaussian amplitudes, and compare with their respective isolated QDs.

OIS 6 Optical Interaction Science 2285127

Tailoring the dispersion of photonic crystal fibers for supercontinuum and photon pairs generation DÍEZ A.1, ANDRÉS M. V.1, SILVESTRE E.1, CASCANTE-VINDAS J.2, VELÁZQUEZIBARRA L.3, ABREU-AFONSO J.1, MARTÍNEZ MA. A.4, LUCIO J. L.3 1Universidad de Valencia/2Universidad de Costa Rica/ 3Universidad de Guanajuato/4Centro de Investigaciones en Óptica.

The interplay between chromatic dispersion and nonlinear effects is patent. Once a photonic crystal fiber (PCF) preform has been prepared, changing the parameters that control the fabrication process it is possible to adjust the dispersion properties of the fiber. In addition, it is very useful to develop postprocessing techniques that enable a fine adjustment of the dispersion along a section of PCF. The tapering of PCF, using a fusion and pulling technique, has been established as a rather useful technique to engineer the dispersion properties along tens of centimeters. Some recent experiments, which we have carried out, demonstrate that the use of erbium doped PCF enables an optical control of the dispersion through optical pumping of the rare earth ions. Our interest is focused on the exploitation of nonlinear PCF for the development of fiber light sources. Thus, we will present several experiments on supercontinuum and photon pairs generation, through degenerated four wave mixing (FWM), in order to illustrate the control that one can achieve on the optical spectra of these light sources as a function of different dispersion control approaches.

2284947

Speckle photoelectromotive force detection FREJLICH J, KUMAMOTO R.,Universidad Estadual de Campinas-UNICAMP

We report on an efficient setup for speckle photoelectromotive force detection in photorefractive materials. We show that a maximum in the detected photocurrent arises at a certain value of the speckle pattern vibration amplitude, in rough agreement with the mathematical model [1] developed for this phenomenon. We also report the frequency dependence of the photocurrent as a function of the pattern vibration frequency and find out two cutoff frequencies that characterize the space-charge buildup response and the free charges lifetime, respectively, in agreement with former publications on this subject [2]. We report on experimental results using 532 nm and 1063 nm wavelength light onto titanosillenite and CdTe crystals. [1] T.O. dos Santos et al., J.Appl. Phys. vol.103, pp.113104 (2008) [2] Serguei Stepanov, Handbook of Advanced Electronic and Photonic Materials and Devices, Ed. by H.S. Nalwa, vol.2: SEmiconductor Devices, Chapter 6 (2001).

2285184

Linear and nonlinear optical properties of metallic nanocrystals in sapphire MOTA-SANTIAGO P:E:, CRESPO-SOSA A., JIMÉNEZ-HERNÁNDEZ J.L., SÁNCHEZDENA O., SILVA-PEREYRA H.G., REYES-ESQUEDA J.A., OLIVER A., 1Instituto de Física, Universidad Nacional Autónoma de México.

Metallic nanoparticles embedded in transparent dielectrics are very important for new technological applications because of their unique optical properties. These properties depend strongly on the size and shape of the nanoclusters. For their formation, we used the technique of ion implantation because it allows the control of the depth, straggling and concentration of the metallic ions inside the sample, without other 246

contaminant agents. We report the linear and nonlinear optical properties of metallic nanoclusters in sapphire under different fabrication conditions. α-Al2O3 single crystals were implanted with Ag or Au ions at room temperature with different fluences (from 2×1016 to 8×1016 ions/cm2). Afterwards, the samples were annealed at different temperatures (from 600 ºC to 1100 ºC) in oxidizing, reducing, Ar or N2 atmospheres. Once spherical nanoparticles were synthesized, the samples were irradiated with Si++ with different energies and fluences to control the anisotropy. As a result of the ion implantation color centers were formed, mostly F+. After thermal annealing they capture an electron to form F centers or combine for a F2+ center. Also the photoluminescence signal from Al+ interstitial appears. We measured the ion depth profile by Rutherford Backscattering Spectroscopy, and the nano-crystal size distribution and geometry by means of the surface plasmon resonance in the optical absorption spectrum and by Transmission Electron Microscopy. Regarding the nonlinear optical response, the spherical-like Au nanocrystals embedded in sapphire show a saturated positive nonlinear absorption at 355 nm and negative nonlinear absorption at 532 nm, which show saturation when increasing the incident irradiance. They also present positive nonlinear refraction at 532 nm, which is null at 355 nm.

2284331

Direct laser writing: superresolution photoinduction-inhibied nanolithography (SPIN) GU M., CAO Y., GAN Z., JIA B., BAO H., LI X.,Swinburne University of Technology.

Direct laser writing is one of important methods for generating three-dimensional photonic devices. Stimulation emission depletion provides a principle for superresolution microscopy imaging by using two laser beams. One laser beam is responsible for switching on a physical or chemical process and the other one for switching-off. Appling this principle into direct laser writing can lead to superresolution fabrication methods. Here we report on superresolution photoinduction-inhibited nanolithography (SPIN), in which case, one laser beam acts for photoinduction and the other for inhibition. A particular example of photoinduction is photopolymerisation, which is a major method in direct laser writing. We show that the physical mechanism of this kind of SPIN can be well explained by the kinetic coupling (KIC) model and that the smallest feature size of the polymerised dots we have achieved is approximately 40 nm, which is a twelfth of the wavelength.

2286124

TiO2 as a platform for all-optical switching EVANS C.C.1, BRADLEY J.D.B.1, MARTÍ-PANAMEÑO E.A.3, MAZUR E. 1Harvard University/2Benemérita Universidad Autónoma de Puebla.

Future optical systems will require compact, ultra-fast devices capable of switching and logic across a wide range of wavelengths. We present TiO2 as a novel nonlinear material to meet these needs. TiO2 is highly transparent for wavelengths > 400 nm and possesses both high linear and nonlinear refractive indices. We measure the nonlinear index of bulk rutile to be 25 times that of silica using the z-scan technique near the half bandgap (800 nm). We observe multi-photon absorption and conclude that it is sufficiently low to enable ultrafast all-optical switching. We deposit low-loss TiO2 films that are suitable for on-chip applications. We will present data on the composition, linear absorption and nonlinear optical properties of our thin films and discuss the feasibility of all-optical switching and logic devices using this platform.

OIS 7 Optical Interaction Science 2285132

Band structure of three dimensional photonic crystals determined by using integral methods and dyadic green’s functions VILLA F.V.1, MENDOZA A.S.2, GUEL J.A.T.1, PEREZ H.A.2 1 Centro de Investigaciones en Optica 2 Facultad de Ciencias Físico-Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo

247

The vector wave equations for the electromagnetic field are solved numerically as an eigenvalue problem, to determine the band structure on three-dimensional photonic crystals by using integral equations and dyadic Green‘s functions. The numerical formalism is developed by following similar ideas applied to determine the light scattering in two-dimensional systems. It is shown that proposed method is useful to determine the scattered light in the near and far fields, besides the band structure in systems composed of a variety of materials.

2285091

Optical properties of 3d nanostructured composites BERNARDO MENDOZA 1, W. LUIS MOCHÁN 2, GUILLERMO ORTIZ 3 1 Centro de Investigaciones en Óptica A.C 2 UNAM-ICF-Cuernavaca 3 U. del Nordeste, Argentina

We present a very efficient recursive method to calculate the effective optical response of metamaterials made up of arbitrarily shaped inclusions arranged in periodic 3D arrays. We apply it to dielectric particles embedded in a metal matrix with a lattice constant much smaller than the wavelength of the incident field, so that we may neglect retardation and factor the geometrical properties from the properties of the materials. If the conducting phase is continuous the low frequency behavior is metallic, and if the conducting paths are thin, the high frequency behavior is dielectric. Thus, extraordinary-transparency bands may develop at intermediate frequencies, whose properties may be tuned by geometrical manipulation.

2285991

Photoassisted poling: electro-optic measurements using the mach-Zehnder interferometer. SHIMIZU F.M.1, GIACOMETTI J.A.1 1 Faculdade de Ciências e Tecnologia, UNESP Univ Estadual Paulista

The photoassisted poling technique (PAP) allows azobenzene groups in polymeric films to be oriented to generate second order nonlinear optical activity. The trans-cis-trans photoisomerization of azobenzene groups increase their mechanical mobility allowing, at room or even at low temperatures, orientation of groups under an excitation light and a dc electric field. Thus, with the PAP technique it is unnecessary to heat the polymer to a temperature near its glass transition temperature to achieve poling. Orientation of azobenzene groups, i.e., the electro-optic activity, can be probed by a Mach-Zehnder interferometer (MZI). We show that a MZI setup can be used to track the poling process and its decays after poling in the PAP technique. The electro-optic activity measurement during poling is possible since the excitation light, the dc voltage, the modulation MZI voltage and the light beam from the interferometer light source are simultaneously applied to the polymeric film mounted in one of the MZI arms. We will show r13 measurements made from films prepared by casting of poly(methyl methacrylate), PMMA, containing disperse red-1, DR1, as azobenzene group at a concentration of 5 wt% in the polymer. PMMA/DR1 guest-host films were casted onto ITO glass slides and a semitransparent layer of aluminum was evaporated to have the second electrode to apply the voltage. The excitation light with wavelength of 488 nm was obtained from an Ar+ laser. Under the dc voltage of 100 V and a light intensity of 64 mW.cm-2 during 10 minutes, at room temperature, a PMMA/DR1 film with 12 µm thickness exhibited electro-optic coefficient r13 ~0.67 pm/V which agrees with the published values. The measured signal from the electrostriction effect and the time dependence of r13 during the poling process and its decay after poling at several temperatures will be presented and discussed.

2286130

Bleaching response of photosensitive films containing multi walled carbon nanotubes. DÍAZ COSTANZO G1, LEDESMA S2, GOYANES S3 1 LPI y LP&MC, Dpto de Física, Universidad de Buenos Aires 2 LPI, Dpto de Física, Universidad de Buenos Aires, CONICET 3 LP&MC, Dpto de Física, Universidad de Buenos Aires, CONICET

248

Nowadays the technologies associated to the development of nonlinear optical materials demands highly controlled parameters for applications that include optical data storage, waveguiding and optical signal processing. For these practical applications to be carried out, it becomes important to have a temporally and thermally stable material that can be controlled in the nanoscale. Push-pull azo dyes have been broadly used for the elaboration of nonlinear photosensitive materials and their particular feature is that they may undergo a trans-cis photoisomerization process when illuminated with light of the proper wavelength. Azo dye molecules may suffer an irreversible photoinduced bleaching according to the energy or time exposure. Additionally, it is already known that certain azo dye molecules may interact with multi walled carbon nanotubes (MWCNTs) by modifying their surface. In this work we studied two different guest host epoxy resin systems. One includes MWCNTs functionalized with an azo dye molecule, Disperse Orange 3 (DO3) and the other includes only DO3 dye-doped. Thin films of both systems were prepared and they were irradiated until bleached spots appeared. We observed that films including MWCNTs functionalized with DO3 have a different bleaching response. This response which depends on the quantity of MWCNTs added in the film would allow controlling the formation of transparent regions in the material with a different refractive index. Our measurements support the idea that those molecules remaining in the surface of MWCNTs would not be suffering such a bleaching effect therefore generating a reduced area of bleaching on those films with MWCNTs. We find it very promising the fact that specific pattern could be inscribed in these thin films by controlling the ammount of MWCNTs functionalized with DO3 added in the material.

2285425

A probe for scanning near-field magnetic microscope in visible range. WROBEL P.W.1, ANTOSIEWICZ T.J.A.2, SZOPLIK T.S.1 1 University of Warsaw 2 Chalmers University of Technology

A probe for scanning near-field magnetic microscope in visible range Piotr Wróbel Faculty of Physics, University of Warsaw, Pasteura 7, 02-093 Warsaw, Poland Tomasz J. Antosiewicz Dept. of Applied Physics, Chalmers University of Technology, SE-412 96 Goteborg, Sweden Tomasz Szoplik Faculty of Physics, University of Warsaw, Pasteura 7, 02-093 Warsaw, Poland In the last decade a new type of artificial materials was designed and fabricated. These are so called metamaterials, which are magnetically resonant within a wide range of frequencies from the microwave to the visible. Optical magnetic metamaterials are composed of subwavelength size metal-dielectric elementary cells such as split ring resonator, U-shape rod, pairs of nanowires or nanostrips, and fishnet, where LC resonances create dispersion of magnetic permeability. In alldielectric arrayed composites dispersion of magnetic permeability results from dipole resonances. Further development of metal-dielectric and all-dielectric metamaterials with magnetic response at optical frequencies might be possible when new inspection techniques are established. By analogy to scanning near-field optical microscopy (SNOM) we propose a method of investigating magnetic responses of metamaterials with a scanning near-field magnetic microscope (SNMM). The crux of the microscope is a tapered fiber probe with a radially corrugated metal coating. The radial slits enable internal azimuthally polarized light to couple to plasmons. The plasmons propagate in the slits to the probe apex and form an azimuthal mode which concentrates the longitudinal magnetic field component into a subwavelength spot in the near-field. In this magnetic focus, the longitudinal magnetic field component is much stronger than the perpendicular electric one. Preliminary results of fabricating the probes are discussed. TJA is on leave from Interdisciplinary Centre for Mathematical and Computational Modeling, University of Warsaw, Pawinskiego 5A, 02-106 Warsaw, Poland T.J. Antosiewicz, P. Wróbel, T. Szoplik, "Magnetic field concentrator for probing optical magnetic metamaterials," Opt. Express 18, 25906-25911 (2010). http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-25-25906

249

Plenary 5 2286196

The lam network and the development of optical sciences and applications in Africa. WAGUE A.1 1 President of the African Laser Atomic Molecular and Optical Sciences Network (LAM Network) University Cheikh Anta Diop, Dakar, Senegal

The African Laser Atomic Molecular and Optical Sciences Network ( LAM Network) was created in May1991 in Dakar ,Senegal. Since this periode the activities of the LAM Network are focused on the running of international workshops, conferences, schools, scientific visiting exchanges for the development of optical sciences in Africa. In addition the LAM Network has operated in the creation of many optical centres in Africa and to the creation of strong collaborative actions and scientific cooperation in Africa as well as at national and international levels. Today the Network in working in strong partnership with the Abdus Salam International Centre for Theoretical Physics (ICTP) In Trieste Italy , with the International Science Program ISP in Uppsala, Sweden and also with the International Commission of Optics( ICO) as International Society member of ICO. After twenty years of existence, through its activities the LAM Network have been able to show the importance of optical sciences with their various applications for social and economic development in Africa. At the same time it was shown that through networking in science it is possible to overcome the isolation of scientists in Africa and to share knowledge with other partners all over the world

Thursday Poster Session – 3 FDI Fabrication, design and instrumentation 2283168

High-intensity Yb3+-doped fiber laser for engraving and cutting acrylic RAMIREZ-YAÑEZ E.A.1, CRUZ-CONTRERAS A.1, ALVAREZ-CHAVEZ J.A.1 1 CIITEC-IPN

Using finite element theory an Yb3+-doped fiber laser at 1 μm, will be designed for marking, engraving and cutting acrylic with a thickness from 2 to 120 millimeters in a wide range of applications from data storage to bar coding. A 30 W@976 nm semiconductor diode laser will be employed as the pump. A double-clad, octagonal-shape 5 μm-core with a 25,000 ppm tailored profile concentration is used as the basis of the engraving/cutting design. A 10W@1064nm, high-intensity (I≈6.4exp21 W/μm2), quasi diffraction-limited with an M2≈1 and temporally stable behavior will be demonstrated after full theoretical optical design and simulation. Thorough optical characterization of the laser and samples of engraving and cutting will be discussed in our talk.

2284302

Interferometric chalmer’s test using a reflective microdisplay CANALES_PACHECO B1, GRANADOS_AGUSTÍN F1, CORNEJO_RODRÍGUEZ A1 1 National Institute of Astrophysics Optics and Electronics.

Chalmer‘s test is based on the principle of interference phenomenon and geometrical optics to measure the aberrations of optical systems. The test consists of an extended mercury source placed at a distance 2f from the lens under test; just after the lens is placed a screen with several holes in a vertical line that allows selecting only two areas of the wavefront, opening only two holes. Those two open holes work as two secondary sources, whose wavefronts will be superimposed, and at a certain distance an interference pattern is observed. Therefore his physical shapes of the interference fringes give partial information of the quality of 250

the optical lens. To find the total surface deformation, along one line; a pairs of holes each time will be discovered on the Chalmer‘s screen, and each interferogram will give information. Following this Chalmer‘s idea a microdisplay reflector with an active area of 17.43 X 13.95 mm and 1280 X 1024 pixels, had been used in such a many that two neighbor holes can be ―open‖ for any zone of a lens wavefront under testing. Therefore local errors for the lens wavefront can be measured, for any zone just opening a pair of holes, with the microdisplay. Experimental results will be shown, where local errors for certain areas of a lens about a square centimeter can be observed and measured.

2284451

Wavefront determination using the Ronchi test with equivalent wavelength GARCIA-ARELLANO A.1, GRANADOS-AGUSTIN F.1, CORNEJO-RODRIGUEZ A.1 1 National Institute of Astrophysics, Optics and Electronics

In this work we present an efficient proposal to evaluate optical surfaces working at infrared wavelengths based in the Ronchi test and the synthetic wavelength concept. The implementation is performed using a spatial modulator (XGA2 SLM) and a white Light Emitting Diode (LED) of 5mm. In order to select distinct wavelengths, different color filters are employed. Thus, for a given selected wavelength, the surface evaluation is carried out with the method of Ronchi, registering two perpendicular interferograms for this color; the process is repeated for a second wavelength (architecture of this proposal allowed us to test the surface in more than two wavelengths). Then, an equivalent Ronchigram is computationally generated with the registered data which then is analyzed in order to generate the Wavefront for the correspondent synthetic wavelength. Observations of our results show that with an appropriate LED alignment and high intensity, we avoid an increase of noise due to the employment of longer wavelengths, as well as, the alignment problem, often linked to the evaluation of IR surfaces. Finally, the simplicity of the optical array and low cost materials make this proposal applicable in the area of optical testing.

2284594

The effect of alignment errors in polarimetry of light using liquid-crystal variable retarders LÓPEZ-TÉLLEZ J.M.1, BRUCE N.C.1 1 Centro de Ciencias Aplicadas y Desarrollo Tecnológico, UNAM.

Experimental results using Liquid-Crystal Variable Retarders (LCVRs) to measure the four Stokes parameters of a light beam simultaneously are presented. We use known waveplates (half-wave and quarter-wave) as known sources to provide controlled polarization states to the Stokes polarimeter, and we use the measured Stokes parameters as functions of the orientation of the axes of the waveplates as an indication of the quality of the polarimeter. The effects of errors in optical alignment and nonlinearity of the retardance variation on the results are presented and discussed. We also present results of simulations of the effect of the errors for comparison. Finally, we present the advances obtained in the development of a Mueller matrix polarimeter for use in a goniometric scatterometer.

2284962

Slope measurement of a phase object TOTO-ARELLANO N.I.1, MARTÍNEZ-GARCÍA A.1, RAYAS-ÁLVAREZ J. A.1, SERRANOGARCÍA D. I.1 1 Centro de Investigaciones en Óptica A.C

An interferometric method to measure the slope of phase objects is presented. The analysis was performed by implementing a polarizing phase shifting cyclic shear interferometer coupled to a grating interferometer. This system can obtain four interference patterns with adjustable phase shifts and variable lateral shear. In order to extract the slope of a phase object, is analyzed the optical phase applying the classical method of phase extraction.

251

2284964

Parallel PSI using a double cyclic shear interferometer TOTO-ARELLANO N.I.1, SERRANO-GARCÍA D.I.1, MARTÍNEZ-GARCÍA A.1, RAYASALVAREZ J.A.1 1 Centro de Investigaciones en Óptica A.C

In this work we present a parallel polarizing phase shifting interferometer based in a Double Cyclic Shear Interferometer (DCSI) to analyze transparent samples. This system has the advantage of better mechanical stability against external vibrations and is capable of generating four beams that can interfere properly, this can reduce the number of captures needed in phase shifting interferometry. The interferometric system generates two π-shifted interferograms, which are recorded by the CCD camera in a single-shot. The separation between parallel interferograms can be varied in the two axes for convenience. For the processing of optical phase, a phase shift can be generated by placing a linear polarizer on each one of the two patterns. We analyze the cases of four patterns with an arbitrary shift in two shots and the case of four patterns with shifts of /2 captured in two shots. The unwrapped phase is processed by Kreis methods and conventional four-step algorithm. Related simulations and experimental results obtained by the proposed interferometer are presented

2284970

Simultaneous phase shifting interferometry based in a Michelson interferometer SERRANO-GARCÍA D.I.1, TOTO-ARELLANO N.I.1, MARTÍNEZ-GARCÍA A.1, RAYASÁLVAREZ J.A.1, MONTES-PERÉZ A.2 1 Centro de Investigaciones en Óptica A.C 2 Benemérita Universidad Autónoma de Puebla

Due to that non-destructive optical techniques allow surface measurement with high accuracy, a Michelson interferometer was implemented to analyze a phase object using polarization phase-shifting interferometry. Each beam of the interferometer has a birefringent wave plate attached in order to achieve nearly circular polarization of opposite rotations one respect to the other. The system is coupled to a 4-f arrangement with Ronchi grating which is collocated in the Fourier plane. The interference of the fields associated with replicated beams, centered around the diffraction orders, is achieved varying the beams spacing with respect to the grating period. The optical configuration allows obtaining n-interferograms simultaneously. The phase reconstruction is performed using a four steps phase shifting algorithm and the algorithms with symmetrical (N+1) phase steps. Experimental results are present to a thin phase object.

2284999

Characterization of a hydrogenated amorphous silicon microbolometer array ORDUÑA DÍAZ A1, ROJAS LÓPEZ M1, DELGADO MACUIL R.J.1, TORRES JACOME A2, DE LA HIDALGA WADE F.J2, FERRUSCA DANIEL2, VENTURA GONZÁLEZ SALVADOR2, TREVIÑO PALACIOS C.G2 1 Centro de Investigación en Biotecnología Aplicada, IPN 2 Instituto Nacional de Astrofísica Óptica y Electrónica

Hydrogenated Amorphous silicon is recognized as an excellent material for active layers in thin-film solar cells and thin-film transistors. This material doped with boron has been employed as a thermosensor layer in microbolometers arrays. We present here the characterization of a thermosensor layer grown for application in far infrared detection. The array was fabricated on a Si wafer covered with 0.4 µm of Si3N4. Wet bulk micromachining was used to generate the windows of suspended nitride film of 660 x 420 µm by removing the Si underneath. Then a 95 nm thick film of B doped a-Si:H was deposited on the micromachined Si wafer by means of low frequency PECVD system at 540 K. Conventional lithography was used to define the size of the thermometer on the nitride window. 5 x 5 microbolometer arrays were fabricated and then characterized at a base temperature of 77 K under black body illumination at temperatures ranging from 573 K to 1373 K. A responsivity of 1.17 x 10-2 mA/W with a temperature change in resistance of 4.25% was measured as an average on the individual devices of the array 252

2285028

Parameter evolution diffraction efficiency of gratings with corn syrup MEJIAS-BRIZUELA N.Y.1, OLIVARES-PÉREZ A. 1, GRANDE-GRANDE A.2, ORDÓÑEZPADILLA M.J.1 1 INAOE 2 Instituto Tecnológico Superior de Atlixco

We present the temporal behavior of diffraction efficiency parameter to first order, of holographic gratings recorded in corn syrup, sensitized with potassium dichromate. For the record we used two wavelengths, 473 nm and 532 nm respectively, and studied the evolution behavior of diffraction efficiency parameter over a period of time ranging from 24, 48.72 and 96 hours. Diffraction gratings built were made at room temperature both showed a temporal evolution, showing a peak in a certain period of time. Demonstrating the need for a suitable period of stability after exposure to this material shows its maximum modulation.

2285033

Pva with nopal dye as holographic recording material TOXQUI-LÓPEZ S.1, OLIVARES-PÉREZ A.2, FUENTES-TAPIA I.2, PINTO-IGUANERO B.1 1 Benemérita Universidad Autónoma de Puebla (BUAP) 2 Instituto Nacional de Astrofísica Óptica y Electrónica (INAOE)

Cactus nopal dye is introduced into the matrix of polyvinyl alcohol achieving a thick film with a like brown appearance, such as they can be used as a recording medium. This dye material provides excellent property as photosensitizer, such as ease of handling, low cost and also has the ability to record real time, for application of holography. We present the experimental results obtained through diffraction gratings were recorded using a laser of He-Cd (442 nm). Polyvinyl alcohol and dye from cactus nopal, were deposited by the technique of gravity on a thick film on a glass substrate, which dries to form a photosensitive emulsion. On the other hand shows the average results of the diffraction efficiency parameter which is quantified.

2285258

Coherence matrix for speckle patterns DÍAZ GONZÁLEZ G.1, MARTÍNEZ VARA P.2, MARTÍNEZ NICONOFF G.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica, INAOE 2 Benemérita Universidad Autónoma de Puebla, BUAP

We report the implementation of a four arm speckle interferometer using a rough surface with bounded power spectrum. With the symmetry implicit in the configuration, and illuminating with a partially coherent and polarized beam, we describe the spatial evolution of the scattered field. This configuration allows us to calculate easily the coherence matrix for the speckle pattern by considering the vector structure of the illumination beam. Experimental results are shown.

2285383

A system for the study of the sound phenomena in alloy samples of FE2MO VILLAFAÑA RAUDA EDGAR 1, CRUZ MANDUJANO JAVIER 2, MORALES ESTRELLA RICARDO 3 1 , Centro Universitario de Los Lagos, Universidad de Guadalajara. 2 Universidad Michoacana de San Nicolás de Hidalgo, Dpto. de Ciencias Básicas y Matemáticas, Facultad de Ingeniería Civil 3 Universidad Michoacana de San Nicolás de Hidalgo

In this work, we presented the design of Photoacoustic (PA) cell, which is used for the experimental determination of the thermal diffusivity of solids, this study appears taking a comparation with the Rosencwaig and Gersho (RG) model, which uses the thermal diffusion mechanism like the main generator of the signal (PA). The contribution of this work is shows the photoacoustic technique of an open cell (CFA) and 253

the studies the photoacoustic signal of alloy samples of a metal to metal compound Fe2Mo that took place by dust reduction of Fe2MoO4 Hydrogen and sinterized by Hydrogen [5], which was compressed to form a tablet of 1 cm of diameter and we shows the results of the Photoacoustic signal in amplitude and phase.

2285477

Structural characterization of opuntia laser using FT-IR and thermal analysis MEJIAS DIAZ K. D.1, FLORES REYES T.1, PONCE CABRERA L.1, ARRONTE GARCÍA M.A.1, DOMÍNGUEZ SÁNCHEZ M.A.1 1 CICATA IPN

This paper presents the characterization of Opuntia samples by laser spectroscopy techniques as Fourier Infrared (FT-IR) and thermal analysis differential calorimetry (DSC). In this study we performed a comparative analysis of samples before and after samples treatment with Nd: YAG laser emitting at 1064 nm and produces pulses whose energy is variable up to a maximum of 0.9 J. It was determined that there was no structural change in the epidermis of the cactus.

2285588

Progress in the design of chromatic null screens to test cylindrical parabolic concentrators BELTRÁN MADRIGAL J.1, DÍAZ URIBE J.R.2 1 Universidad Nacional Autónoma de México 2 Centro de Ciencias Aplicadas y Desarrollo Tecnológico UNAM

The qualitative and quantitative results obtained on the test of cylindrical parabolic concentrators when the screens are designed using dot color changes on the screen are shown. Such a design guarantees a better dot correspondence assignment and makes the optical test of the concentrator easier. The test allows to measure deformations from tenths of a millimeter to several millimeters on the concentrator surface, thus demonstrating that null screen method is good enough for testing surfaces with important deformations. In addition, for validating the test method, in a second approximation, a new null screen is designed for the evaluated surface when it is described by an approximating fourth degree polynomial which includes a crossed term. This second test of the same surface shows that the first evaluation gets close to the form of the surface.

2285656

Quantitative evaluation of a Plano-convex parabolic lens GONZALEZ-UTRERA D.1, AVENDAÑO-ALEJO M.1 1 Universidad Nacional Autónoma de México

A new design of a null screen Hartman‘s to test quantitatively a fast plano-convex aspherical lens is presented. The design of the null screen Hartman‘s is based considering the caustic produced by refraction through the lens. Additionally, the null screen can be used to improve the alignment in optical systems. A quantitative evaluation of medium precision by using a trapezoidal integration method is presented.

2285745

Focusing a microscope with a single additional moving lens LARA-GARCÍA H.1, DIAZ-URÍBE R.2, CORKIDI-BLANCO G.3, PIMENTEL-CABRERA A.3 1 Facultad de Ciencias UNAM 2 CCADET UNAM 3 IBt UNAM

Studying the natural 3D movements of living microorganism freely moving at a high speed along a liquid medium requires high Numerical Aperture (NA) objectives. Usually immersion objectives are used, so a continuous focusing movement to follow the 3D path of such microorganisms will cause perturbations on the liquid medium, altering their natural movements. In this work, an analysis to include a single additional 254

moving lens within a microscope optical system, whose function is to maintain the focus over the microorganism, while the objective and stage are kept static, is presented. The first order theoretical solution to the movement of the additional lens to keep the right focus will be shown, together with experimental results to demonstrate its feasibility. In order to validate the theory, experiments were made for a single focusing simple lens, when the objective is a low power single lens and for a low power microscope objective. When additional requirements are imposed on the total magnification and on the focusing range together with the allowed movement of the focusing lens, practical solutions are very limited. In this work, the method to find the focal length and initial position for the focusing lens is described.

2285802

Dragging force versus speed and polisher density with Teflon® tools IZAZAGA-PÉREZ R.1, CORDERO-DÁVILA A.2, GONZÁLEZ-GARCÍA J.3, CUAUTLECORTÉS J.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) 2 Benemérita Universidad Autónoma de Puebla (BUAP) 3 Universidad Tecnológica de la Mixteca (UTM)

In polishing process of a glass with a Teflon tool, we measured the dragging force exerted from the glass to the Teflon tool for several relative speeds and polisher densities. We used a force sensor, a Teflon tool of 4cm diameter and an 120-cm diameter piecework glass, rotating in a polishing machine. In order to increase the relative speed, the Teflon tool was placed, without rotation, at several glass radial positions over the piecework glass. To reproduce the dependence of the dragging force with the relative speed and the polisher density we imposed two physical conditions to a bi-dimensional polynomial, whose coefficients were estimated by means of a least squares fitting. The polynomial degree and the inclusion of the polisher density terms, in mathematical model, were statistically defined.

2285935

Opto-mechanical design, analysis and simulation of tunable liquid-filled lenses SANTIAGO ALVARADO A1, GONZÁLEZ GARCÍA J1, ITUBIDE JIMÉNEZ F1, CAMPOS GARCÍA M2, VÁZQUEZ MONTIEL S3, LICONA MORAN B.I.G.1 1 Universidad Tecnológica de la Mixteca 2 Universidad Nacional Autónoma de México 3 Instituto de Astrofísica, Óptica y Electrónica

Tunable liquid-filled lens (TLFL) is lenses that changing their focal length by modify the quantity of liquid within the mount. Recent research shows that, the use of tunables lens makes lighter, simpler and more compact optical devices in micro-engineering. In the literature there are papers that present simulations of the behavior of tunable micro-lenses composed slim membranes. We use a TLFL composed a cylindrical metallic mount with a compartment for two transparent elastic membranes filled with water between them. Membranes with plane, spherical and conic surfaces are employed. The membranes are elaborated of Polydimethilsolixane and the mechanical mount is made of alluminium. In this work, we present the optomechanical design, analysis and simulations of behavior de tunable liquid-filled lenses composed thick membranes. The analysis is made in three TLFL with different types membranes. The simulations and analysis of mechanical behavior were made with SolidWorkTM software. Moreover an application with genetic algorithms was development to obtain the geometrical parameters of the lenses when a value of pressure is applied on the membrane surfaces. On the order hand, the analysis of optical behavior of the lenses was made with the OSLO software. Finally, results are shown.

2285957

Quantitative surface evaluation by matching experimental and simulated ronchigram images KANTUN J.R1, CORDERO A.1, GONZALEZ J.2 1 Benemérita Universidad Autónoma de Puebla 2 Universidad Tecnológica de la Mixteca 255

QUANTITATIVE SURFACE EVALUATION BY MATCHING EXPERIMENTAL AND SIMULATED RONCHIGRAM IMAGES Juana Rosaura Kantún Montiel1, Alberto Cordero-Dávila1, Jorge González García2 1Benemérita Universidad Autónoma de Puebla, Facultad de Ciencias Físico Matemáticas (México) 2Universidad Tecnológica de la Mixteca (México) To estimate qualitatively the surface errors with Ronchi test[1], the experimental and simulated ronchigrams are compared. Recently [2] surface errors have been obtained quantitatively matching the intersection point coordinates of ronchigrama fringes whit x-axis . In this case, gaussian fit must be done for each fringe, and interference orders are used in Malacara algorithm [3] for the simulations. In order to evaluate surface errors, we added an error function in simulations, described with cubic splines, to the sagitta function of the ideal surface. We used the vectorial transversal aberration formula [4] and a ruling with cosinusoidal transmittance, because these rulings reproduce better experimental ronchigram fringe profiles. Several error functions are tried until the whole experimental ronchigrama image is reproduced. The optimization process was done using genetic algorithms. References [1] Ronchi V., ‗‗Due Nuovi Metodi per lo Studio delle Superficie e dei Sistemi Ottici,‘‘ Ann. Sc. Norm. Super Pisa., 15, (1923b). [2] A. Cordero-Dávila, J. González-García, ―Un solo ronchigrama para estimar el radio de curvatura de una superficie cóncava esférica‖ Presented in ―VII Reunión Iberoamericana de Óptica‖ (RIAO), Lima, Perú, September, 2010 [3] Malacara D., ‗‗Geometrical Ronchi Test of Aspherical Mirrors,‘‘ Appl. Opt., 4, 1371– 1374 (1965b). [4] Alberto Cordero-Dávila ―Dificultades de la aplicación del método de mínimos cuadrados en la evaluación tradicional de interferogramas‖, Ph.D. Thesis, Instituto Nacional de Astrofísica Óptica y Electrónica, México, 1991.

2286095

An electro-opto-mechanical device to make diffractive optical elements CASTRO-RAMOS J.1, GORDIANO-ALVARADO G.1, ORTIZ-LIMA C.M.1, DE JESUSORTIZ M.A.1, VAZQUEZ-MONTIEL S.1, JARAMILLO-NÚÑEZ A.1 1 Instituto Nacional de Astrofisica Óptica y Electrónica

Precision machining has been well known as a very precise and effective method for micro structure components. In this paper the mechanical structure of one xyz and spindle axis of freedom machine with 800 nm of resolution in linear axis is described, details of the homemade mechanical mounts are given; also components of the electronic system such as hardware firmware and software are included in the description. The optical systems to make Diffractive Optical Elements, like linear and circular diffraction gratings in different substrates are shown.

2286097

Electro-mechanical bench for a beam shaper of glass prisms HERRERA-MARTÍNEZ G.1, LUNA A.1, GÓMEZ-ARISTA I.2, ROBLEDO-VÁZQUEZ R.A.2 1 Instituto Nacional de Astrofísica, Óptica y Electrónica 2 Universidad Nacional Autónoma de México

An electro-mechanical bench was designed to improve a beam shaper based on glass prisms. To realize a onedimensional expanding of the laser beam one can exploit the prism beam shaper. Such a shaper can be designed relatively simply, and it is rather compact even with large factor of expanding. Additionally, we do it tunable in behavior with four prisms. We achieve relative expansion from few times to thirty times in onedimension. The electro-mechanical prototype is compact and with an easy manufacture. It was designed basically to align the last two glass prisms. The angular movement is done by step-motors for each glass prism. Potential uses are, for example, to illuminate apertures of an acousto-optical cell for tunable spectral resolution.

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2286135

Application of laser shock processing on biocompatible metal GOMEZ-ROSAS G.1, RUBIO-GONZÁLEZ C.2, OCAÑA J.L.3, MOLPECERES C.3, CHAVEZ-CHAVEZ A.1, BLANCO-ALONSO O.1, CASILLAS F.J. 4 1 Centro Universitario de Ciencias Exactas e Ingenierías, CUCEI. Universidad de Guadalajara 2 Centro de Ingeniería y Desarrollo Industrial, CIDESI 3 Centro Laser Madrid, Departamento de Física Aplicada a la Ingeniería Industrial, E.T.S.I.I. Universidad Politécnica de Madrid 4 Centro Universitario de los Lagos CULAGOS. Universidad de Guadalajara

Laser shock processing (LSP) is a technique for metal strengthening. This process induces a compressive residual stress field which increases fatigue crack initiation life, reduces fatigue crack growth rate and increases wear resistance of metals. We present a configuration and results in the LSP concept for metal surfaces treatments in underwater layer with constant thickness using laser irradiation at 1064 nm. A convergent lens is used to deliver 0.9 J/pulse in 6 ns (1064 nm) laser pulse produced by a Q-switched Nd:YAG Laser. Experimental results using pulse densities of 5000 pulses/cm2 and spot of 1 mm in diameter on biocompatible metal (Ti6Al4V)are presented. The compressive residual stress distribution as a function of depth was measured with the hole drilling method.

2286136

Alignment of PDLC droplets by mechanical vibration techniques PÉREZ-CORTÉS M.1, CARVENTE-MUÑÓZ O.1, ORTÍZ-GUTIÉRREZ M.2 1 Universidad Autónoma de Yucatán 2 Universidad Michoacana de San Nicolás de Hidalgo

This paper presents a novel method for the construction of a PDLC cell, which is based on the control of droplet formation controlled packaging techniques implemented by external mechanical vibrations. In order to find the best geometric distribution of droplets, and thus achieve the efficiency and performance of the cell, which is a function of vibration delivered during device fabrication, we present the characterization of the cell in terms of opacity, and energy expenditure required voltage for operation.

2286138

Charged-particle prototype detector to be used in studies with radioactive ion beams MEZA-OLIVO A.A.1, GALINDO-URIBARRI A.2, ORTEGA-MARTÍNEZ R.1, PADILLARODAL E.1 1 UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO 2 OAK RIDGE NATIONAL LABORATORY

The aim of this work is to develop and to characterize a prototype detector as a building block for an array of charged-particle detectors based on scintillators coupled to SiPMs. This array could be used as an auxiliary detector with the new generation of 4π-Gamma-ray spectrometers, such as GRETINA [1], to study the structure and properties of atomic nuclei. The studies to be carried out will mainly involve the use of Radioactive Ion Beams (RIBs) [2]. The study of RIBs requires the use of specialized detection systems and instruments. Since most of the reactions are produced in inverse kinematics, it is necessary to simultaneously detect gamma-rays in coincidence with charged-particles to correct for Doppler broadening. A chargedparticle array used with a 4π-gamma-ray spectrometer must be highly efficient, with high position sensitivity, low-kinetic energy thresholds, good energy resolution and linearity, high count-rate capability, stability, angular resolution and resistance to radiation. Additionally it should have the smallest possible influence on the performance of the gamma-ray detectors [3]. We are exploring the performance of a modular, compact charged-particle detector, based on a scintillator such as CsI(Tl), coupled to SiPMs, evaluating all the previously mentioned features in addition to its capability of particle identification by means of pulse-shape analysis. The goal is to build a prototype that allows us to obtain, for a charged-particle stopping in the

257

scintillator, position information of about 1 mm, as well as to be able to measure the energy deposited and to identify the type of charged particle (Z identification) based on the pulse shape differences.

2285100

Focusing properties of Thue-Morse Zone Plates CASANOVA C.1, REMÓN L. 2, CALATAYUD A.2, GIMÉNEZ F.2, ANDRÉS P.1, MONSORIU J.A. 2, FURLAN W.D.1 1 Universitat de València / 2Universitat Politècnica de València

Zone plates have undergone a renewed interest during the last years because they arise as key elements for obtaining images in several scientific and technological areas, such as THz tomography and soft X-ray microscopy. With this motivation, we have proposed different kind of fractal zone plates that provide singular focusing and imaging properties [1]. Following this trend, in this contribution we present the Thue-Morse Zone Plate (TMZP) as a novel bifocal diffracting lens, which distribution of zones are based on the ThueMorse sequence [2]. The axial irradiance provided by a TMZP when it is illuminated by a monochromatic parallel wavefront presents two main self-similar foci replicated along the optical axis. Under polychromatic illumination, each focus produces an increase in the depth of focus and a strong reduction of the chromatic aberration too. [1] J.A Monsoriu, W.D. Furlan, and G. Saavedra, ―Focusing light with fractal zone plates‖, Recent Res. Devel. Optics, 65 (5) (2005). [2] E. Maciá, ―The role of aperiodic order in scicence and technology‖, Rep. Prog. Phys. 69, 397-441 (2006).

VC Vision and Colour 2285422

Tangential and sagittal curvature from the normals computed by the null screen method in corneal topography ESTRADA-MOLINA A1, DÍAZ-URIBE R1 1 Universidad Nacional Autónoma de México

A new method for computing the tangential and sagittal curvatures from the normals to a cornea is proposed. The normals are obtained through a null screen method from the coordinates of the drops shaped spots at the null screen, the coordinates on a reference approximating surface and the centroids on the image plane (CCD image). This method assumes that the cornea has rotational symmetry and our derivations will be carried out in the meridional plane that contains the symmetry axis. Experimental results are shown for a calibration spherical surface, using cylindrical null screens with radial point arrays.

2285774

Energy balance in apodized diffractive multifocal intraocular lenses ALBA-BUENO F.1, VEGA F.1, MILLÁN M.S.1 1 Universitat Politécnica de Catalunya

The energy distribution between the distance and near images formed in a model eye by three different apodized diffractive multifocal intraocular lenses (IOLs) is experimentally determined in an optical bench. The model eye has an artificial cornea with positive spherical aberration (SA) similar to human cornea. The level of SA upon the IOL, which is pupil size dependent, is controlled using a Hartmann-Shack wave sensor. The energy of the distance and near images as a function of the pupil size is experimentally obtained from image analysis. The influence of the SA is deduced from the comparison of the experimentally obtained energy efficiency with the theoretical prediction based solely on the diffractive profile of the IOL. All three IOLs have a base refractive power of 20D immersed in water. A spherical lens with addition of +4D and two aspherical lenses, with respective additions of +4D and +3D, are analyzed. The results show that, the energy efficiency of the distance image decreases for large pupils, in contrast with the theoretical and simulated results that only consider the diffractive profile of the lens. As for the near image, since the diffractive zone responsible for the formation of this image has the same apodization factor in the spherical and aspheric 258

lenses and the apertures involved are small (and so the level of SA), the results turn out to be similar for all the three IOL designs.

2285835

Dynamic point shifting in null screen videokeratometry RODRÍGUEZ RODRÍGUEZ M.I.1, JARAMILLO NÚÑEZ A.1, DÍAZ URIBE R.2 1 Instituto Nacional de Astrofísica Óptica y Electrónica 2 Centro de Ciencias Aplicadas y Desarrollo Tecnológico-Universidad Nacional Autónoma de México

For obtaining the shape of the corneal surface through the Null Screen method, a numeric integration procedure must be carried out; perhaps, the simplest integration method, is the trapezoid rule. This method, however, is limited by the truncation error. It has been shown previously that the point shifting method allows the reduction of this error by adding many more evaluation points so reducing the average spacing between evaluation points. To do so, an array of LCD‘s must be used to display the moving Null Screen. In this paper we propose to use three LCD forming a triangular prism, instead of a cylindrical Null Screen for measuring the shape of the human corneas. The null screen design will be described and some experimental results obtained with calibration spheres used to simulate the corneal surface will be presented.

2286068

Spherical aberration and depth of field in simple optical systems MUÑOZ A.F.1, VALDIVIESO L.G.1, LOPEZ E.1, IBARRA J.1, TEPICHIN E.1 1 INSTITUTO NACIONAL DE ASTROFÍSICA, ÓPTICA Y ELECTRÓNICA

Laser refractive surgery has been successfully applied to change ocular aberrations. Typically, to reduce the spherical aberration of the ocular system by modifying the anterior corneal surface. However, spherical aberration of ocular system has been associated with its great depth field [1].On the other hand, we know that some simple optical systems exhibits large spherical aberration that can be understood as a large depth field. We analyze in this paper the relation between the spherical aberration of simple optical system and the resultant depth of field and its possible application in visual optics. [1]Holladay J. T. ―Spherical Aberration: The Next Frontier‖, Cataract & Refractive Surgery Today, November/December 2006.

2286133

Objective visual acuity in human eyes obtained from its wavefront aberration function VARILLAS G1, LÓPEZ-OLAZAGASTI E1, SÁNCHEZ DE LA LAVE D1, RAMÍREZZAVALETA G1, TEPICHÍN E1 1 INAOE

Objective visual acuity in human eyes obtained from its wavefront aberration function. G. Varillas, E. LópezOlazagasti, D. Sánchez de la Lave, G. Ramírez-Zavaleta, E. Tepichín Instituto Nacional de Astrofísica, Óptica y Electrónica, Apdo. Postal # 51, Tonantzintla, Pue., 72000 México; The subjective visual acuity in humans is usually defined in terms of the ability of the eye- brain system to distinguish letters or shapes in a standard chart. The most common chart, known as the Snellen´s Chart, consists in different rows of letters in which the subtended angle of vision is constant in each row, and progressively smaller between them. By definition, with a visual acuity of 20/20 can distinguish a ―E‖ letter subtending an angle of 5 minutes or arc. On the other hand, it is well known that if we consider the eye as an isolated image-forming system, then the retinal image can be calculated thought the convolution of the object and the corresponding impulse response of the system. Therefore, if the object is the Snellen´s chart then the retinal image can be consider as the objective visual acuity. To calculate the actual value of the objective visual acuity we need to have a perfectly characterized reference chart. Several patents exist in the literature that explains how to build this reference chart for the numerical simulation. We show in this work that by choosing the adequate metric, it is possible to obtain a numerical value of the objective visual acuity in perfect concordance with the clinical or subjective visual acuity value. We show the preliminary results of our proposal. This procedure can be useful to estimate the visual acuity in situation where the clinical value is hard to obtain for example in preschool children. 259

2286233

Paradoxical design of the optical system of the human eye. Evolutive hipothesis NAVARRO R.1 1 ICMA, Consejo Superior de Investigaciones Científicas & Universidad de Zaragoza Facultad de Ciencias. Plaza San Francisco s/n, 50009 Zaragoza, Spain

Cornea, lens and eye models are analyzed and compared to experimental findings to assess properties and eventually unveil optical design principles involved in the structure and function of the optical system of the eye. Models and data often show good match but also some paradoxes. The type of optical design of the eye clearly corresponds to a wide angle lens. Compared to conventional optical systems, the eye presents a poor optical quality on axis, but a relatively good quality off-axis, thus yielding higher homogeneity for a wide visual field of nearly 180º. This seems the result of an intriguing combination of two opposite design principles: Symmetry in the distribution of elements, but total lack of rotational symmetry of optical surfaces and absence of an optical axis. Even more intriguing is the mismatch between that relative homogeneous optical performance across visual field and the strongly inhomogeneous retina and the even more inhomogeneous cortical (log-polar) mapping of visual field. Visual acuity and vision of details is concentrated inside the fovea. This is a small area compared to the nearly 180º of peripheral visual field. This mismatch, and apparent design flaw, is discussed in terms of evolution, adaptation and cost/benefit ratio. A better optical performance might be quite possible, but then our visual system should have more neurons to take advantage of it, and the cost of improving optics seems much lower than the cost of significantly increase the number of neurons in the brain. On the other hand, the eye‘s design is not bad if we consider that any attempt to modify its optical system with today‘s surgical technologies tends to deteriorate rather than improve its optical quality. Key words: Visual Optics, Optics of the Human Eye, Eye Models, Evolution, Wide Angle Lens, Symmetry.

IAPD Information Acquisition, Processing and Display 2284154

Development of fluorescent multilayer disc structure BELIAK IE.V.1, BUTENKO L.V.1 1 Institute for Information Recording of National Academy of Science of Ukraine

Fluorescent multilayer disc (FMD) consists from substrate and sandwich-structure of information and intermediate layers. While all the structure of the disc is transparent and homogeneous the parasitic signal will be caused mostly by photoluminescence (PL) and absorption of pits areas where laser light is unfocused. For big quantity of layers (10 or more) the level noise will got significant value, so it was suggested to distinguish readout signal as a variable one. Also it was proposed to record information only by the lands, to decrease absorption level and thus uncontrolled changing of the noise level. Furthermore in information layer of FMD there are inner and outside peripheral areas which uphold a stable level of parasitic signal during readout from the edges of the disc. While PL readout signal is spatially isotropic optical head of FMD drive get just a part of the probing beam energy. PL quantum yield, absorption factor, receiver systems exposure loss coefficients are other reasons of PL signal low power. Thus the problem of low SNR in this case is a major one and the only way of its solving is synthesis of the dye with a high PL quantum yield. The PL relaxation time in other hand is a main feature of the data reading rate and therefore selection of the appropriable registration material will allow getting this parameter up to modern optical disc ones. To achieve this goal composite organic pyrazoline dyes where investigated and accepted as effective registration media with a quantum yield of PL up to 60-70%, relaxation time less than 100 ns, wide spectrum of the PL and possibility of two-photon absorption. Mentioned parameters were further improved by method based on the performance of organic dye molecules in the zeolite matrix.

260

2284156

High-density optical disks for long-term information storage. PETROV V.V.1, KRYUCHYN A.A.1, GORBOV I.V.1 1 Institute for Information Recording of National Academy of Sciences of Ukraine

Optical disks are widely used for storage of archival data represented in a digital form. Long-term storage of information recorded on standard CDs is provided by periodical transferring (once in 3-5 years) to new carriers. High-stable light-sensitive materials and special reflective metal coatings are proposed to use for increasing optical disk information storage term. The conducted researches showed that the application of vitreous chalcogenide semiconductors in optical WORM disks provided the data storage term not under 30 years. A substantially larger term of data storage can be realized on optical ROM carriers. Attainment of a guaranteed storage term within several hundreds of years is provided in such carriers by applying high-stable materials substrates and information must be represented in the form of the microrelief structure on the substrate surface. Sapphire, quartz, silicon, glass-ceramics and other materials can be used for manufacturing substrates of optical BD disks (and other subsequent disk formats with high recording density). These materials allow to create substrate characterized increased melting temperature and chemical and mechanical resistance. Furthermore, using mentioned materials for substrates production allows applying hightemperature metals (chrome, nickel) to creation of high-stable refractive layers and providing sufficient mechanical adhesion between refractive layer and substrate. Modern methods of thermolithography provide the creation of nano-size images on photoresist layer deposited on the substrates. These images can be transformed to the nano-size relief structures on the surface of high-stable materials substrates by techniques of reactive ion-beam etching.

2284646

Characterization of atmospheric pollutants from Tuxtla Gutierrez using DOAS system ORANTES-JONAPA A1, MENESES-NAVA M A2, GONZALEZ-HERRERA R1 1 UNICACH 2 Centro de Investigaciones en Óptica A.C

Air pollution due to emissions from cars, industry, and forest fires, has been extensively studied for the effects on health. There are a variety of measurement techniques, using chemical methods of contact, optical techniques for characterization, detection and control of gases based on spectrophotometry, to detect toxic or explosive gases, and air quality, allowing measurement over large areas typically a few hundred meters, although affected by scattering and other mechanisms of interference. Non dispersive measurements are used to measure concentrations of particles in open system configuration, where a second measurement is required at frequencies which absorb any particles as a reference to compensate the loss due to dust, dirt, etc., in the optical path. This technique is differential optical absorption spectroscopy (DOAS), widely used in IR and UV regions. However, this technique suffers from interference problems, which makes difficult the measurement accuracy. This work implemented a passive DOAS system using an achromatic refractor telescope, Meade ETX-80AT, a UV spectrophotometer, BW-TEK, model BRC112E and environmental measurement device, Vantage Pro2 Plus, implemented in the city of Tuxtla Gutierrez, in three areas of monitoring, the study was conducted from February 15 to March 26, 2010 prime-time traffic. The results showed acceptable approximation of the measurements made with the conventional method and the DOAS. The differences between measurements are due to the nature of the measurement. The results are presented for O3. G. A. Bishop and D. H. Stedman, Measuring the Emissions of passing cars, Acc Chem Res 29, pp. 489-495, 1996.

2284866

Characterization of signals issued by bats in the Santander department (Colombia) BAUTISTA MENDOZA C.O.1, MENDOZA CARREÑO E.F.1, VESGA REYES M.E.1 1 Universidad de Santander (UDES)

In nature we are surrounded by animals of all kinds, but there are some that calls more attention, in our particular case study the signals emitted by bats such as frequency. For the above used an ultrasonic detector 261

based on a piezoelectric and a signal amplifier; since the best piezoelectric ultrasonic detectors and those type filter easily audible frequencies. The signals are captured by a digital oscilloscope. In this research we work with bats located in the city of Bucaramanga and sites located close to rural areas, this in order to determine the differences in the signals emitted by them. Using Fourier transform allows us to work in frequency space, where any change in frequency of the bats studied is reflected in the spacing of the signal. These are received by a piezoelectric crystal is which transforms the mechanical waves into electrical signals that are increased by an amplifier stage; the waves are displayed on the screen of an oscilloscope for further analysis. The main part of our device is the piezoelectric which is cut to work at a higher frequency of 20,000 Hz, where the signals emitted by bats. Also, this work allows us to identify the species of bats that are studied by comparing the peak intensity and frequency used by the number of pulses emitted.

2285328

Image-plane alcove reflection hologram using one-step recording CHENG Y.S.1, LEE T.C.1 1 National Central University

Multiplex holography combines the usual photography and the rainbow holography. Hence, not only the static objects on the optical table but also human beings and outdoor scenes can be used as the subjects for holographic recording. Furthermore, computer-generated data, including scientific, engineering, medical data can be utilized as subjects to record hologram. Owing to the characteristics of rainbow holography, white light from either a point source or a line source can serve as the reconstruction light. Alcove hologram, due to its cylindrical shape, can display 3D image at the center of hologram cylinder with illuminating light source positioned on the axis of the hologram cylinder either above or below the hologram. Previously, we have proposed a three-step process to record an image-plane reflection alcove multiplex hologram. Here, we design a special anamorphic optics system which facilitates the separation of the horizontal and the vertical images. A wave diverging from a slit on a diffuser serves as the reference beam for hologram recording. Successive images are input into the optical system for recording as superimposed holograms with proper translation between successive holograms. The developed hologram when curved into a partial cylinder and illuminated with a light bulb with a line filament can reconstruct single-colored image at the center of the hologram cylinder. Some preliminary experimental results are provided and the design of the optical system is described.

2285878

The PCI core for FPGA by calibration and applications in the optical detection instruments GOMEZ JIMENEZ R1, ROJAS DOMENICO J.U.1, URIBE VALLADARES R1, MUÑOZ ZURITA A.L:1 1 Facultad de Ingeniería Mecánica y Eléctrica, U .Torreón Universidad Autónoma de Coahuila

The PCI bus (Peripheral Component Interconnect), Peripheral Component Interconnect bus is a newly proposed high bandwidth, processor-independent. Compared with other buses, the PCI provides better performance for E / S high speed. Because the design of the PC 512 only supports port address on the system bus and because it uses a large number of these addresses, interfacing with design requirements of a large number of ports E / S are difficult to implement. This paper describes a design of a PCI core, to increase the maximum number of addresses available port on the PC. Any transfer of data to the PCI bus is a single transaction consisting of one address phase and one or more data phases. The PCI is designed to allow some variety of configurations based on microprocessors, including both single systems with multiple processors. Uses synchronous timing and a centralized arbitration scheme. The PC typically uses address mapping E / S, but nothing in the design prohibits the use of port forwarding E / S memory mapped. This scheme simply uses memory addresses as addresses of E / S port.It is commonly used to expand the port forwarding E/S and in many microprocessors, the only means the adreassing ports E/S. Note that the PCI core, is designed to operate

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in application cards for instrumentation and data acquisition. This paper considers using the PCI core for the calibration of detection instruments.

2285929

Design of a podoscopy using fringe projection. RENERO-C F.-J.1, CALDERA J.1 1 INAOE

Preliminary optical-digital design of a podoscopy is presented. Thus, the quantification of the fallen arch of the feet is achieved means of the fringe projection. The development software is also presented.

2286170

Noise tolerant n-order phase unwrapping system NAVARRO M.A.1, ESTRADA J.C.1, SERVIN M.1 1 Centro de Investigaciones en Óptica

The present work shows preliminary results of a phase unwrapping technique used in interferometry. Wrapped phase maps are the result of the modulus 2pi ambiguities caused for the phase recovery function. Here we present a recursive n-order phase unwrapping system that removes the ambiguities, it`s robust to noise and fast. The system is able to recover the unwrapping phase in presence of high noise, according to stability of the system that can be controlled. The system is not numerically-heavy in comparison with other methods that tolerate the noise. The application areas of the system can be: optical metrology, magnetic resonance, and those imaging systems where information is obtained as a demodulated wrapped phase map.

2286208

Image reconstruction with Bessel-Fourier moments. PADILLA-VIVANCO A.1, TOXQUI-QUITL C.1, CAMACHO-BELLO C.1 1 Laboratorio de Óptica y Visión por Computadora. Universidad Politécnica de Tulancingo

In this work, we reconstruct discrete image functions by means Bessel-Fourier polynomials. To measure the image reconstruction we use the Normalized image reconstruction error between the input and reconstructed images. We show that, a good reconstruction performance is found to be available for gray-level images. The reconstruction algorithm is implemented using the first forty zeros of the Bessel functions of the first kind. Experimental results are presented

TO Theoretical Optics 2283821

Optical imaging with partially coherent and partially polarized illumination ROMERO P.1, OSTROVSKY A.S.1 1 Universidad Autónoma de Puebla

As swell known, the coherence properties of illumination essentially affect the process of image formation in optical system. Such an effect has been thoroughly studied within the framework of scalar coherence theory [1]. Recently, much prominence is given to the vector coherence theory or so-called unified theory of coherence and polarization [2]. In this connection it is interesting to generalize the corresponding results of Ref. 1 for the vector case of partially coherent and partially polarized electromagnetic illumination. Here, we show that the quality of optical image depends on both the spectral degree of coherence and the spectral degree of polarization of illuminating field. We illustrate this result with an example of optical imaging the two-pinhole object illuminated by Gaussian Schell-model electromagnetic field. [1] J. W. Goodman, Statistical Optics, John Wiley & Sons, 1985. [2] E. Wolf, Introduction to the Theory of Coherence and Polarization of Light, Cambridge Univ. Press, 2007.

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2284810

Light propagation through thin films, the amplitude and phase representation DIAMANT R.1 1 Universidad Autónoma Metropolitana Iztapalapa.

The amplitude and phase representation of classic electromagnetic waves is used to model light propagating through a stratified medium, with a continuous refractive index profile. This medium is assumed to be isotropic, non magnetic, electrically neutral, transparent, dielectric, with a linear response, but letting the electric permittivity vary along the z direction. No approximations regarding a slowly or strongly varying refractive index, compared to the wavelength, are made. This is particularly convenient when the refractive index varies on a wavelength scale. The case of a thin film at normal incidence is studied for various thicknesses and interface ranges. The corresponding nonlinear amplitude differential equation is numerically solved. The amplitude oscillations are construed in terms of counter-propagating waves and the film s reflectivity is evaluated.

BMO Bio Medical Optics 2284463

Birefringence and deformation measurements in porcine corneas using Fourier OCT BRIONES M.J.1, DE LA TORRE M.H.1, MENDOZA F.1, PEDROZA J.2 1 Centro de investigaciones en óptica A.C. 2 Estudio integral de la visión.

A polarization sensitive Fourier domain optical coherence tomography system to measure the birefringence response and the internal deformation of porcine corneas is presented. The optical system uses polarized light to recover simultaneously the s and the p polarization states by means of two low cost cameras. Each camera records fringe patterns which reconstruct the internal structure of the porcine cornea. Combining both sensors information a polarization retardation maps are observed inside the tissue. The corneas are deformed due a hydro static test which simulates different intra ocular pressure variations. Results show simultaneously the micro structure of the cornea, its birefringence response and its mechanical micro deformation. A comparison of the results obtained with the proposed system and commercial ones are also presented.

2284496

Theoretical analysis and experimental validation of a two-fiber probe for biomedical spectroscopy applications DELGADO ATENCIO J.A.1, PRAHL S.A.2, VÁZQUEZ Y MONTIEL S.1, CUNILL RODRÍGUEZ M.1, GUTIÉRREZ DELGADO F.3, CASTRO RAMOS J.1 1 INAOE 2 Oregon Medical Laser Center 3 CEPREC

The goal of the present work is to characterize theoretically and experimentally a simple two-fiber optic probe for spectroscopy applications in turbid biological media such as human skin and cervix. First, we perform a review of the wavelength dependence of optical parameters of these tissues. The validity of the diffusion approximation is evaluated for simple models of skin and cervix in term of the restriction that scattering should dominate over absorption. The spectral bands where the diffusion theory fails are found for skin and cervix models. Second, radially-resolved diffuse reflectance is compared using both Monte Carlo and the diffusion techniques. The optimal source-detector distance that minimizes errors is identified. Using, these spectral and spatial constraints together with known optical properties, a set of synthetic spectra are generated using a valid diffusion approximation. These spectra are used to evaluate an algorithm to extract intrinsic tissue optical properties. Finally, a two-fiber optic probe was built and used to record spectra from in-vivo skin and phantoms mimicking the cervix tissue. The derived optical properties will be presented.

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2284776

690-nm, quasi-diffraction-limited fibre laser design for acupunctural analgesia RIVERA-MANRIQUE I.S.1, JAQUES S.L.2, ALVAREZ-CHAVEZ J.A.1 1 CIITEC-IPN 2 OREGON HEALTH STATE UNIVERSITY

Abstract: The therapeutic effect that laser beams could produce in humans is being investigated all over the world as it might represent an option for conditions as common as migraine and phonophobia and for other serious conditions such as port wine stain, among others. This work is based on the optical design and simulation of a continuous wave (CW) Yb3+-doped, 690nm quasi-diffraction-limited fibre laser for producing specific therapeutic effect known as acupunctural analgesia. It is a simple design on which commercially available software was employed for laser cavity design and the so-called Monte Carlo technique for skin light-transport, thermal diffusion and the possible thermal de-naturalization prediction. A full optical characterization will be included and full results on the laser-skin chromophore interaction, anisotropy, skin dispersion coefficient, all based on the resultant laser design will be described.

2285126

Surface plasmon resonance technique used to differentiate tequilas LUNA MORENO D.1, MONZÓN HERNÁNDEZ D.1 1 Centro de Investigaciones en Óptica, A.C.

SURFACE PLASMON RESONANCE TECHNIQUE USED TO DIFFERENTIATE TEQUILAS Donato Luna Moreno, David Monzón Hernández Centro de Investigaciones en Óptica AC, 37150 León, Gto. México dluna@cio.mx, dmonzon@cio.mx We propose the use of the prism-based surface plasmon resonance (SPR) technique to show that it is possible to differentiate between tequilas of the same type and with the same grade of alcohol (35% alc. vol.) produced by different trademark. The experimental scheme used is based on the Kretschmann configuration and consist of a semi-cylindrical bk7glass-prism coated with a three-layer thin film of chromium-gold-silicon dioxide. The gold is the active layer, chromium was used to enhance the adherence of gold to the prism and finally the silicon dioxide was deposited over the gold layer to protect it against harsh environment. The plasmon resonance curve produced by each tequila sample is analyzed and compared to find the difference between the tequilas.

2285347

Low cost optoelectronic system for drying paint monitoring RUBINSZTAIN E.1, LUTENBERG A.1, TRIVI M. 2, PEREZ-QUINTIAN F.3 1 GLOmAe, Departamento de Física, Facultad de Ingeniería, Universidad de Buenos Aires, Av. Paseo Colón 850 C1063ACV, Ciudad de Buenos Aires, Argentina 2 Centro de Investigaciones Ópticas (CONICET La Plata - CIC) and UID Optimo, Dpto. Ciencias Básicas, Facultad de Ingeniería, Universidad Nacional de La Plata, Casilla de Correo 3, 1897 Gonnet- La Plata, Argentina 3 Laboratorio de Ingeniería Óptica (LIO), Departamento de Física, Facultad de Ingeniería, Universidad del Comahue, Buenos Aires 1400, 8300 Neuquén, Argentina

In previous works we reported several speckle interferometry methods applied to the analysis drying of paints analysis process. In this paper we present the development of a low cost optoelectronic system for monitoring the drying status of different types of paints. The system is composed by a laser diode, a linear CCD sensor and a dsPIC30F4011 microcontroller for control and data processing. One of the key points of the system is the algorithm that processes the speckle patterns produced by the laser beam scattered from the paint. The temporal evolution of the speckle carries information of the painting activity status. The proposed algorithm modifies one of his parameters to follow the speckle rate of change, allowing a real-time measurement of the paint drying state. The results obtained with this system are compared to the ones obtained by the method that measures the paint weight loss in time, due to the solvent evaporation, and to the results from other methods that process the temporal evolution of the speckle with different algorithms.

265

2285851

Non-invasive optical method for epidermal thickness estimation PEÑA A. 1, ARRONTE M.1, PONCE L.1, RODRÍGUEZ E.1, DE POSADA E.1, FLORES T.1 1 CICATA-IPN Unidad Altamira

A non-invasive method to determine epidermal thickness from the intensity of transmitted visible light is proposed. A simple model for passing light through the epidermis layers and then measuring what is transmitted back out of the surface, is implemented by using the Montecarlo method. Simulations revealed that the transmittance is linearly dependent on the thickness of the epidermis and so demonstrate the viability of the proposed method. Our optical coherence tomography measurements of finger tips epidermal thickness agree with the theoretical results.

2285965

Ex-vivo study of cervical lesions using OCT. VÁZQUEZ-VILLA A.1, DELGADO-ATENCIO J.A.1, GUTIÉRREZ-DELGADO F.2, VÁZQUEZ-MONTIEL S.1, MARCIAL-TOLEDO S.2, CASTRO-RAMOS J.1, CHÁVEZMERCADO L.2 1 Instituto Nacional de Astrofísica Óptica y Electrónica 2 Centro de Estudios y Prevención del Cáncer

Each year in the world is diagnosed 12.7 million people with cancer and 7.6 million deaths are caused by this disease. More than 70% of these deaths occur in developing countries. The third part of these tumors can be cured with early detection and therefore new modalities of timely diagnosis of this disease are still developing around all over the world. In Mexico cervical cancer are the second leading cause of death in women and the leading cause of death in women living in rural communities. Each year 16,000 new cases of cervical cancer are diagnosed and 4500 women die from the disease. Optical Coherence Tomography (OCT) provides high resolution in vivo tomography images of turbid media, such human tissue, which become this technique into a good alternative to the traditional gold standard for diagnosing of cancer: optical biopsy based on the microscopy analysis of biological samples extracted from the body. In this paper we present the result of analysis of a set of OCT images taken from ten biopsy samples of cervical tissue that include healthy and anomalous tissue for comparison purposes. The OCT images are analyzed in order to identify typical signatures in micro volumes corresponding to healthy, premalignant and cancer tissues, respectively. In addition, the validity of using an extraction algorithm to determine the optical properties of these tissues from the interferometric signal provided by the OCT equipment is evaluated. The zones measured with the OCT handheld were the indicated by the medical specialist and were marked to guarantee their analysis during the application of the traditional histopathological method. Finally we present an analysis of the correlation between the results obtained using OCT and the results by the traditional optical biopsy method.

2285968

Optical coherence tomography image enhancement by using gold nanoparticles PONCE-DE-LEON Y.R.1, LOPEZ-RIOS J.A.2, PICHARDO-MOLINA J.L.1, ALCALAOCHOA N.1 1 Centro de Investigaciones en Óptica 2 Universidad de Guanajuato

Optical Coherence Tomography (OCT) is an imaging technique to get cross-sectional images with resolutions of a few microns and deep penetration in tissue. For many years OCT has been applied to analyze different human tissues like eyes, skin, teeth, urinary bladders, gastrointestinal, respiratory or genitourinary tracts and recently breast cancer tissues among others. However, one of the big challenges to get a well defined image of breast cancer tissue is to avoid scattering from lipids. On the other hand, typical histology analysis of breast cancer tissue is done by visual identification of morphology or structural changes in tissue and cells (subjective analysis). Gold nanoparticles exhibit interesting optical properties due to its plasmon resonance frequency. Optical absorbance is strong when gold nanoparticles have dimension under 50 nm but over this size optical scattering starts to be the dominant. The aim of our investigation is to analyze the performance of 266

nanoparticles in the contrast enhancement of OCT images. We added gold nanoparticles to phantoms and evaluate the contrast modifications using a Thorlabs Swept Source OCT System working in the central wavelength of 1325nm. Some preliminary results are presented using gold nanoparticles of different morphologies, sizes and coatings as contrast agents in gel phantoms

OE Optical Engineering 2283183

Fibre laser beam-absorption in metals for laser-assisted cold spray ORTIZ-NERIA D.I.1, SCHREIBER T.1, ALVAREZ-CHAVEZ J.A.1 1 CIITEC – IPN

The present work is focused on the analysis of theoretical beam absorption from Yb3+-doped fiber laser on metal sheets to compare them with traditional CO2 laser sources. In laser material processing, the absorption of the laser beam on any type of metal is very important to improve the entire process in terms of speed and accuracy. Although many performance parameters are directly related to the specific process, in most cases the process critically depends on laser type and beam characteristics. Moreover, scientific reports state that the absorption efficiency is a function of laser wavelength and material characteristics that will be processed. A complete analysis of absorption performance of an Yb3+-doped cavity will be useful in order to explore beyond a simple control of deposition temperature process that has strong laser power dependence. The analysis needs to be completed with a technical and scientific comparison over a commercial CO2 laser absorption, so that it could be a good reference to evaluate fiber laser performance in future industrial applications. Theoretical results based on solving inherent, relevant equations and their simulation will be presented as the basis for a strict comparison between Yb3+-doped laser absorption efficiency versus CO2 laser absorption, in order to determine key factors involved in deciding design criteria for industrial and scientific systems such as the so-called laser-assisted cold spray process.

2283831

Influence of some parameters on the performance of fringe projection RAMIREZ F.1, BARRIENTOS B.1 1 Centro de Investigaciones en Óptica A.C

A study of the influence of some parameters on the performance of fringe projection is reported. The parameters under investigation are the period of the fringe pattern, the shape of the carrier fringes, the contrast and the working cycle of the fringes. Numerically simulated objects with different frequency content are analyzed as well. In particular, the deformation map of a rectangular aluminum plate fixed at its corners is firstly computed by finite differences (ANSIS) and then taken as another input to the FP algorithm. For retrieval of the optical phase the Fourier method is considered.

2283940

Optical non-destructive testing of the materials surface structure based on LCs TOMILIN M.G.1, STAFEEV S.K.1 1 Saint-Petersburg SPb State University of Information Technologies, Mechanics and Optics

Thin layers of nematic liquid crystals (NLCs) may be used as unusual recording media for visualizing structural and microrelief defects, the distribution of low power physical fields and local modifications of the surface. NLCs are more sensitive to physical fields detecting in comparison with cholesteric and smectic LCs having super molecular structures. The detecting properties of NLCs are based on local layers deformation, induced by surface fields and observed in polarizing microscope. The structural surface defects or physical field‘s distribution are dramatically change the distribution of surface tension. The recording of the surface defects becomes possible if the NLC deformed structure is illuminated in transparent or reflective modes and observed through optical microscope with crossed polarizes and appearing figure is compared to the background structure. In this case one observes not the real defects but the local deformations in NLCs induced by the fields or defects. The basic theory was developed that gave the information on the real size of 267

defects. The resolution of the LC layer is more than 2000 lines/mm. The fields of NLC application are solid crystals symmetry observation, minerals, metals, semiconductors, polymers and glasses structure inhomogeneities and optical coatings defects. The efficiency of NLC application in biophotonics is illustrated by objective detecting cancer tissues character and direct visualizing the interaction traces of grippe viruses with antibodies. NLCs also may detect solvent components structure such as tea, wine and perfume. NLCs in application to solution components gives unique information of their structure and opens horizons for detecting forbidden and dangerous components in solution (drugs, toxins and explosives). It gives diagnostic information alternative to dyes and fluorescence methods. For the first time the structures of some juices and beverages are presented to illustrate the unique possibilities of the new universal method.

2284392

Structure monitor system by using of optical fiber sensor and watching camera in utility tunnel in urban area NAKANO N.M.1, TORIGOE T.T.2, KAWANO M.K.2 1 Osaka Sangyo University. 2 NTT Infrastructure Network Corporation.

The feature of the optical fiber sensing measurement are 1) strong for receiving inducement, 2) not for electric deterioration, 3) possible to measure along a long distance, 4) unnecessary for the power supply, etc. The optical fiber can measure the distortion and the temperature along the line continuously. And displacement the transformation of the structure to the wide range. And moreover, the measurement system that it is more advanced than the past as well as stability combined with the telecommunication and sensor function of the optical fiber sensor is able to have highly achieved. This paper reports the measurement results of the utility tunnel (electric power and communication) according to the adjacent expressway construction. And moreover, the surveillance camera for the monitor is connected to the network, set up in joint premises in this measurement, and it reports on the content observed overall. Recently, attention has been for disaster prevention that supports the social life. Moreover, it is necessary to make the best use of a limited infrastructure for the provision of social overhead capital in the future efficiently, and effectively. It is necessary to construct the measurement system that considers cost and the effect for that. Remote observation is also possible and can understand the behavior of the structure in the line and respect the optical fiber sensing technology by the network camera observation on which it reported this time. It will be necessary to improve this technology, and to establish the technology as for disaster prevention observation in the future. Real-time disaster prevention technology will become possible by uniting this measurement system and the telecommunication network as shown in Figure 12 in the future. It is thought that it contributes to the achievement of a safe, comfortable social life space by this technology.

2284578

3D displacement and strain measurements using simultaneously three lasers SÁNCHEZ A. A.1, DE LA TORRE-IBARRA M.H.1, SAUCEDO-A. T.2, MENDOZA SANTOYO F.1 1 Centro de Investigaciones en Óptica, A. C. 2 Universidad Autónoma de Zacatecas

In this work we present an extension of the use of three different lasers at 458, 532 and 633 nm and only one high resolution monochrome sensor. Besides the advantage to obtain the 3D deformation in just two images it is now possible due the geometry of the optical setup to obtain the strain gradients present in the object. The system records two consecutive images where each one contains three holograms in it. This configuration gives the opportunity to use long coherence length lasers which allows the measurement of large object areas. A series of digital holographic interferograms are recorded for a particular metallic sample during a well known mechanical deformation. A comparison between the experimental results and a finite element model are presented. From the system it is possible to obtain in just a couple of images the orthogonal displacement components u, v and w and the strain gradients. Latter gives more information about the mechanical response of an object during a micro deformation. 268

2284745

Encoding degree testing in a 4f architecture AMAYA ROBAYO D.1, TEBALDI M.1, TORROBA R.1, BOLOGNINI N.1 1 Centro de Investigaciones Ópticas (CONICET La Plata-CIC), UID OPTIMO - Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina

The distribution of the encrypted information at the output of an encoding system is of major concern. When the encrypted information is conveyed to the final user, image pollution or possible damages can affect the physical support. In such a case, we face possible information degradation when recovering. Therefore, it is of importance to ensure the optimal spatial distribution of the encoded information along the output of the encrypting system. In doing so, we select the classical 4f encoding architecture to apply our analysis. We test what we define the encoding degree as a function of the characteristics of both encoding masks, the input object size and input pupil. We find a dependence on the above parameters influencing the spatial distribution at the 4f output plane. In particular, we observe a definite spatial location or alternatively a wide-spread distribution of the encoded information depending on the parameters‘ manipulation as well as assigning roles to both encrypting masks. We present a number of examples to back our analysis.

2284822

Michelson microscope interference objective for micro-structure topography measuring KARIM GIBRÁN HERNÁNDEZ CHAHÍN K.G.1, RAMÓN RODRÍGUEZ-VERA R.R.2, JUAN ANTONIO RAYAS ÁLVAREZ J.A.2 1 Universidad de Guanajuato, División de Ciencias e Ingenierías Campus León 2 Centro de Investigaciones en Óptica A.C

Nowadays, the trends of miniaturization of sensors and inspection devices have been of major importance in science and technology. The characterization of microchips, integrated circuits, MEMS, and micro-sensors is important to determine their proper operation. Due to their element small size may have structural fails for improper handling of them. This paper proposes the use of a Michelson interferometic objective for the determination of topographical features in materials at micro and nanoscale level. The main advantage of this method is it is non-invasive nature that allows testing in soft materials without damage. An interferometric objective with a magnification of 5X illuminated with a 632nm He-Ne laser is used. Fringes that allow the study of the topography of these structures are properly analysed. The acquisition of the interferograms was performed by a CCD, which are handled by the method of phase-stepping. An integrated circuit of a CCD as target is used. A reconstruction of the microscopic topography of the sample produced results with a statistical error in the topography of 12nm. Application of this method is to conduct quality control tests in manufacture of electronic components such as micro-chips and integrated circuits.

2284899

Analysis of cantilever beam test using digital image correlation and digital holography DE OLIVEIRA G.N.1, NUNES L.C.S.1, DOS SANTOS P.A.M.1 1 Universidade Federal Fluminense

In the present work a new optical testing methodology to analyze and estimate mechanical parameters of fixed-free cantilever beam subjected to a concentrated force applied at the free end submitted to different loads is analysed. This is a standard test for characterizing its mechanical properties in this situation and is considered the simplest form of analysis. So, the experimental tests were carried out using two combined approaches. Large deformations have been evaluated by means of digital image correlation (DIC) and small deformations have been estimated using digital fourier transform holography (DFTH). The experimental procedure to estimate small displacements is carried out using the digital holographic interferometry technique. This is a non-contact optical technique that consists in recording digitally a DFTH hologram with a CCD camera and reconstructing numerically the object image. By other hand, for large displacements the experimental procedure is carried out using the digital image correlation (DIC) method. This is an opticalnumerical full-field surface displacement measurement method. It is based on a comparison between two 269

images of a specimen coated by a random speckled pattern in the undeformed and in the deformed states. This way, it is possible to obtain a complete set of measurements by the combination of image correlation and digital holography for a efficienty mechanical analysis of the proposed specimen. Finally, with whole data colletion, the mechanical parameters are determined.

2285155

3D measurements of a tympanic membrane with digital holographic interferometry MUÑOZ SOLÍS S.M.1, MENDOZA SANTOYO F.M.1, HERNÁNDEZ-MONTES M.H.1 1 Centro de Investigaciones en Óptica, A.C.

In this paper a digital holographic interferometry (HDI) system with three object-illumination beams is used for the first time to detect and measure micrometer deformations on the surface of a tympanic membrane. Using this optical setup allows all three object displacement components x, y, and z, to be independently calculated. The corresponding deformations are registered using a cw laser in stroboscopic mode and a CCD camera synchronized to the excitation acoustic wave that produces a resonant vibration mode on the tympanic membrane surface. A series of digital holographic interferograms record the displacements undergone by the tympanic membrane and from them full field deformation phase maps are obtained. From the latter it is possible to observe the displacement of the tympanic membrane in response to the sound pressure. The study was performed on the tympanic membrane taken from a post-mortem cat. The results show the feasibility to apply a similar optomechanical arrangement for the study in humans, representing an alternative technique for the study of pathologies in the tympanic membrane. Keywords: HDI, tympanic membrane, optical non invasive method

2285612

Temperature distribution of non-symmetric flames with two orthogonal pointdiffraction interferometers AGUILAR JUAN.C1, AGUILAR J.FELIX1, BERRIEL-VALDOS L.R.1 1 Instituto Nacional de Astrofísica, Óptica y Electrónica

Two point-diffraction interferometers were used to reconstruct the temperature distribution of flames; they are arranged in perpendicular direction each to other, so we get two projections. We estimated the optimum pinhole size for a fixed transmittance in order to get the best contrast of the fringes in presence of aberrations. A multiplicative computing algorithm for tomography was used for the reconstruction from the interferometric projection data. Since this type of algorithms accept an initial solution, we can improve the estimated temperature and, also accelerate the convergence by using the classical radial-Abel reconstruction approach as an initial condition. In this way we get a realistic temperature distribution even considering the rapid spatial variations of the flame.

2285888

Experimental results of phase retrieval with reduced noise using inline-DHM ARRIZÓN V.1, CRUZ M.L.2 1 INAOE2Unistmo

Digital holographic microscopy is a method used to retrieve microscopic phase objects. However, the limited CCD bandwidth, used to record the hologram, and the aberrations of imaging lens add some noise into the retrieval process. In this context, the use of referenceless on axis digital holography is highly convenient due to the simplification of the required optical setup. However, the amount of noise, due to the conjugate and zero-order terms in the holograms tend to increase, because these hologram terms are overlapped with the signal term. We propose to enclose the object in a pupil and use this information to obtain an approximation of the object phase. This approximation is used in an iterative method, where the recovered field is cleaned from the conjugate and zero order hologram terms. Moreover, we show that the distortion introduced by loss of high frequency information, in the retrieval process, can be compensated with the iterative method. The simulation of this method had been proved with good results and they present a fast convergence of the algorithm. In this work we present the first experimental results applying this method. 270

2286054

Phase unwrapping using morphologic processing DE LA ROSA MIRANDA E.1, BERRIEL VALDOS L.R.2, GONZALEZ-RAMIREZ E.1, MIRAMONTES DE LEON G.1, FELIX-AGUILAR J.2 1 Universidad Autónoma de Zacatecas2Instituto Nacional de Astrofisica Óptica y Electrónica

In this paper a simple and robust algorithm for phase unwrapping is proposed. For smooth and continuous phase, unwrapping can be carried out using morphological processing. Morphological filter were applied in order to estimate the phase amplitude fulfilling the condition for continuity of the 2π- modulo phase in regions with 4-connectivity. Results showed that the estimation of the unwrapped phase is fast and precise.

2286077

Laser ultrasound with an adaptive interferometer CATANA-CASTELLANOS J.A.1, VÁZQUEZ-LOZANO J.I.1, CASTILLO-MIXCÓATL J.1, MUÑOZ-AGUIRRE S.1, BELTRÁN-PÉREZ G.1 1 Benemérita Universidad Autónoma de Puebla

The use of ultrasound as a non-destructive analysis technique in different technological applications such as medicine, among others has been effective. However the use of the conventional ultrasound technique involves physical contact between the sample and the transducer. This is an important obstacle in different industrial procedures where it is almost impossible to have direct contact with the sample, for instance working with high temperatures, harmful environments or just because the production line cannot stop working. A simple way to solve this problem is using laser to generate and detect ultrasound. Generating ultrasound can be performed with a pulsed laser while the detection can be achieved by the use of an adaptive interferometer. The adaptive interferometer uses a conventional interferometric configuration and adaptive photodetectors, which are based on the non-steady state photo-electromotive force, photo-EMF, which effectively compensate environmental perturbations. The experimental setup uses a PC which performed the control of the pulsed laser and the process of the ultrasound signal which was acquired by an oscilloscope. Some experimental ultrasound signal results are shown and some simple applications such as determination of an aluminum sample thickness and the ultrasound velocity inside the material.

2286154

The influence of the temperature in the UV-Vis spectrophotometers calibration CARRANZA GALLARDO J.C.G1, MEDINA MÁRQUEZ J.M.M1 1 INAOE

In this work a study of the temperature influence in the calibration of swept UV-Vis spectrophotometers is shown. The temperature interval was set between 18 °C to 31 °C, and glass filters of neutral density at 1%, 20%, 30%, 50%, and 90% were used as a reference approved materials, also a holmium oxide filter was used. An ANOVA analysis was used (variance analysis) and the obtained results have a confidence of 95,45%. By determining if the temperature is an influence variable or not during the spectrophotometer calibration, helps to modify the uncertainty range and as a consequence the modification of the uncertainty estimation model.

POE Photonic and Opto-Electronics 2284453

Hybrid birefringence and dichromatism in twisted single-mode erbium-doped fibers TENTORI D1, GARCIA-WEIDNER A1 1 CICESE/Física Aplicada-Óptica

In this work we present an experimental evaluation of the twist induced birefringence changes measured for straight samples of commercial single-mode erbium-doped fibers with uniform residual birefringence. We used short samples (1 to 1.5 m) to minimize depolarization effects. Samples were kept straight, fixed to a 271

polarimetric set up. The connector of the fiber output end was fixed to a mechanical rotation stage. The applied twist was varied from 0 to 1440 degrees using a 10 degree step. The input signal was linearly polarized (azimuth angles = 0, 30, 60, 90, 120 and 150 degrees), the signal wavelength varied from 1520 to 1570 nm (5 nm step) and the output polarization state was measured with a polarization analyzer. For the five commercial samples here studied we obtained an asymmetric response to right and left twist, a result different to that previously measured for standard single-mode fibers (lossless). We found phenomenological similarities between the birefringence responses measured for fibers with different erbium concentrations, developed by the same manufacturer, while fibers made by different manufacturers present a non-similar response. Even though the polarization degree remained close to 100% for the fibers here studied, it is evident that these fibers exhibit in addition to an elliptical birefringence a hybrid (linear and circular) dichroism. Therefore, birefringence changes have been analyzed taking into account the influence of dichromatism, using the 4x4 Mueller matrix formalism and Stokes vectors.

2285187

Automatic polishing specialty-fiber machine for cladding-pumped fibers CUEVA-LOPEZ M.1, SANCHEZ-GUERRERO G.E1, GUAJARDO-GONZALEZ C1, CASTILLO-GUZMAN A1, SELVAS R1 1 Centro de Investigación en Ciencias Físico Matemáticas - UANL

Optical fiber is preferred used as a medium to transmit telephone signals. The technology of fiber optics shows an important change with the design of cladding pumped fibers which are used in applications such as high power fiber lasers and amplifiers. The cladding fiber diameter for this type of fiber is larger than 200 microns, thus, the preparation of its end-surface facet fiber becomes a complicated task. Fibers require endsurface treatment for proper light propagation and the preparation of connectors plays a key role in fiberbased circuit. Fiber polishing is essential for almost every cladding fiber diameter larger than 200micros. A high quality polish can then be achieved with a well designed and precisely tuned polishing machine. This paper presents a novel automatic, self-inspection polishing machine for fiber with diameter larger than 200 microns. This optomechatronic system consists in an inter-changeable connector holder, a carousel-type films changer and for the evaluation is used a vision processing in situ for the fiber-end-termination. A homecomputer program selects a polishing motion among three different patterns and sends instructions to twostepping-axis-motors to performance the polishing. Orbital, figure-8, or circular polishing are the patterns predefined in our system, which were characterized to obtain a high quality-facet-end. These parameters are adjusted every time that the fiber-facet is evaluated or the carousel changes position. Back-reflection, insertion losses and correlation images from a vision camera are applied during this process. Once the automatic process is completed, it is warranty the quality of the facet-fiber-end. The polishing machine can also make angle physical termination. The time recorded for a polishing standard telecom fiber is less than 5 minutes while for a cladding 200microns diameter fiber is roughly 7 minutes. The connector holders also permit up to 8 fibers to polish simultaneously and select from ST, SMA, or FC terminations.

2285267

Point sources of light for surface plasmon excitation GASPAR-ARMENTA J.A.1, MAYORAL-ASTORGA L.2, RAMOS-MENDIETA F.1 1 Universidad de Sonora 2 Posgrado en Ciencias (Física), Universidad de Sonora

A point source of TM polarized light generates inhomogeneous fields at the surface of a metallic slab placed at its vicinity. It is found that the associated k-spectrum contains wave vectors larger than those corresponding to free oscillations. Consequently, evanescent fields are available and surface plasmons can be excited. With FDTD calculations we prove in detail this effect using a point source of cylindrical symmetry placed near a silver film. In addition, we present a theoretical analysis of the fields generated by the source and their reflection at the metallic surface; poles of the reflection coefficient are associated to surface plasmon excitation. Agreement with the numerical FDTD calculations is reported.

272

2285315

Characterization of photon counter devices for biomedical applications ORTEGA A.1, PAEZ G.1, STROJNIK M.1 1 Centro de Investigaciones en Óptica A.C.

In this work we characterized several state-of-the-art high sensitivity optical detectors. We compared avalanche photo diode devices (APD) with multi-pixel photon counting devices (MPPC) in several characteristics such as detection efficiency and response times. We then discussed how they could be used in certain biomedical applications.

2285559

Spectroscopic detection of metals ions using a novel selective sensor PERALTA-DOMÍNGUEZ D.1, RAMOS-ORTÍZ G.1, MALDONADO-RIVERA J.L.1, RODRIGUEZ M.1, MENESES-NAVA M.A.1, BARBOSA-GARCÍA O.1, SANTILLAN R., FARFÁN N.3 1 Centro de Investigaciones en Óptica A.C. 2 Departamento de Química, CINVESTAV del IPN 3 Facultad de Química, UNAM, México

The design and synthesis of intelligent organic molecules with chemosensors characteristics, in particular for detection of heavy metal ions, are currently a task of prime importance for medical, environmental and biological applications. The most common types of chemosensors consist of two components: a signaling unit and receptor part which are linked directly or via a spacer [1]. Colorimetric chemosensors are a simple, economical and practical optical approach for detecting toxic metal ions (Hg2+, Pb2+, Ni2+, etc.) in the environment. In this work, we present a simple but highly specific organic compound 4-chloro-2-((E)-((E)-3(4-(dimethylamino)phenyl)allylidene)amino)phenol (L1) that acts as a colorimetric sensor for ions in a mixture of DMSO/H2O and THF/H2O. The mechanism of the interaction between L1 and various metal-ions has been established by UV-vis and emission spectroscopic experiments that indicate favorable coordination of metal ions in different solvents. Experimental result indicate that the electronic transition band shape of L1 (receptor compound) change after the interaction with these divalent metal-ions, such as Hg, Pb, Mn, Co, Cu, Ni in aqueous solution. We found that L1 have a high selectivity for Ni, even in presence of other metals ions as Co and Cu in experiments using the mixture of DMSO/H2O as a solvent. L1 which has been targeted for sensing transition metal ions, exhibits binding-induced color changes from yellow to orange detected even by the naked eye in presence of Ni ions. This new sensor presents similar time making the operational process of such sensor simpler and more practical to be employed in real samples or applications. [1] J. Janata, Chem. Rev. 108 (2008) 327.

2285709

Raman gain calculation by Raman threshold study in telecom fibers DE LA CRUZ-MAY L.1 1 Universidad Autónoma del Carmen

A simple experimental configuration for measurement of the Raman gain coefficient is demonstrated. The Raman threshold condition plays an important role to calculate the critical power and the Raman gain coefficient. Analysis of the Raman threshold for the second Stokes shows that the Raman gain coefficient scales with the inverse of the pump wavelength and the fiber attenuation, the obtained values are approximate to several quantities previously reported. With those physical properties the single pass evolution of pump and Stokes beams equations are simulated for different fibers lengths and several couple pump powers. The numerical simulations show that the fibers losses and the numerical aperture play a predominant role in the Stokes generation. These results allow designing optical fibers efficiently and faulty in the Stimulated Raman scattering generation.

273

2285862

New method to characterize Gaussian beams BALBUENA ORTEGA A1, ARROYO CARRASCO M.L1, DÁVILA PINTLE J.A1, MÉNDEZ OTERO M.M1, ITURBE CASTILLO M.D2 1 Benemérita Universidad Autónoma de Puebla 5 Instituto Nacional de Astrofísica, Óptica y Electrónica

The measurement of the parameters that characterize a Gaussian laser beam is very important in the design and implementation of several optical experiments like: Z-scan technique, spatial self phase modulation, generation of optical solitons, etc. The knowledge of the beam waist magnitude Wo and its location inside the laser or after some optical elements is a fundamental requirement. There are many techniques for the characterization of Gaussian beams, but some of these techniques require a large number of data, a post processing and in others the precision of the results is not good. In this work we propose a new method to characterize a laser beam based on the Gaussian beam propagation through a lens, and require a simple experimental setup that can accurately measure the magnitude and location of the beam waist. The experimental setup involves a lens, of focal length f, and a chopper located together in a mechanical mount and separated by a distance f, and a photodetector. To characterize the output beam of a laser the lens is placed at a distance smaller than its focal length and the mechanical mount is displaced along the beam axis. A photodetector behind the chopper measure the periodic transmitted intensity and an electrical circuit generates a square wave whose pulse width is proportional to the beam width W at the location of the chopper. The position of the chopper where W is minimum, when the mechanical mount is moving away the laser, fix where Wo is located. Finally it is necessary to make a measurement of the beam width in that position without the lens to find the magnitude of the waist. All the measurements can be obtained in a fast way and only few are needed to determine accurately the position and value of the beam waist.

2285948

Dispersion measurement in optical fibers of short length ARMAS-RIVERA IVÁN A.R.I1, BELTRÁN-PÉREZ GEORGINA B.P.G.1, CASTILLOMIXCOÁTL JUAN C.M.J.1, MUÑOZ-AGUIRRE SEVERINO M.A.S.1, KUZIN-EVGENE A K.E.A.2 1 Benemérita Universidad Autónoma de Puebla, Facultad de Ciencias Físico Matemáticas 2 Instituto Nacional de Astrofísica Óptica y Electrónica

In this work, a method to analyze data obtained from an arrangement to measure dispersion in short length optical fibers (a few cm) is presented. The data were obtained from an arrangement based on a Mach-Zehnder interferometer, where one air arm was used as reference while in the other arm the fiber under test was placed. An algorithm for data processing was implemented using the Fourier Transform (FFT) and the dispersion was evaluated from the interferograms obtained with an optic spectrum analyzer (OSA) in a wavelength range from 1520 to 1620 nm. The results showed that the obtained dispersion values had a minimum error of approximately 2% for a wavelength of 1520 nm and approximately 5% for a wavelength of 1570 nm, with relation to the value reported by the fabricant.

2285997

Theoretical and experimental results of superluminescent fiber optic source PINZÓN-ESCOBAR E.F.1, SANDOVAL-ROMERO G.E.1 1 Universidad Nacional Autónoma de México, Centro de Ciencias Aplicadas y Desarrollo Tecnológico

Theoretical and Experimental Results of Superluminescent Fiber Optic Source E. F. Pinzón-Escobara*, G. E. Sandoval-Romeroa a Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Apartado Postal 70-186, México D. F., 04510, México. *e-mail: enrique.pinzon@ccadet.unam.mx ABSTRACT We present a theoretical and experimental work of an erbiumdoped fiber optic source operating in the superluminescent regime. Experimental results for different pump power levels and different fiber length show that the theoretical model could render useful information for 274

predicting parameters such as total output power, spectral bandwidth and optimum fiber length for a given pump power to achieve the superluminescent regime. These types of sources could have direct application in wavelength multiplexed arrangements of fiber sensors, fiber gyroscopes or in general, in any sensors in which a broad wavelength and stable light source is required. Key words: doped fiber optic, erbium, sensors of physical magnitudes, fiber optic.

2286025

Simultaneous measurement of curvature and temperature using multimode interference devices AGUILAR-SOTO J.G.1, GUZMAN-SEPULVEDA J.R.2, TORRES-CISNEROS M.2, IBARRAMANZANO O.G.2, MAY-ARRIOJA D.A.3 1 INAOE 2 Universidad de Guanajuato 3 Universidad Autónoma de Tamaulipas

In this paper we propose the fabrication, implementation, and testing of a novel fiber optic sensor based on Multimode Interference (MMI) effects for simultaneous and independent measurement of curvature and temperature. Due to its relation with structural mechanical parameters, the measurement of curvature and temperature has received a great deal of interest. Recently, simultaneous measurement of these two variables is a common requirement, as well as discrimination between them using a single fiber sensor. The development of fiber based MMI devices is relatively new and since they exhibit a filter response they can be used in different applications. The operating mechanism of our sensor is based on the self-imaging phenomena that occur in multimode fibers (MMF), which is dependent on the interference of the propagating modes and the accumulated phase. Therefore, we demonstrate that the peak wavelength shifts as temperature changes due to changes in the accumulated phase through thermo-optics effects, while the amplitude of the peak wavelength diminishes as curvature increases since we start to loss higher order modes. In this way both measurements are obtained independently with a single fiber device. Compared to other fiber-optic sensors, our sensor features an extremely simple structure and fabrication process, and hence cost effectiveness.

2286070

Fiber bragg grating fabrication for the implementation of sensors in the electronics and optoelectronics laboratory at BUAP BRACAMONTES-RODRIGUEZ Y.E.1, BELTRÁN-PÉREZ G.1, CASTILLO-MIXCÓATL J.1, MUÑOZ-AGUIRRE S.1 1 Benemerita Universidad Autónoma de Puebla

Fiber Bragg gratings (FBG) are important optical devices since they have been quite successful not only in the field of communications but also in sensor systems and optical fiber lasers. In the sensors area they are generally used as detection elements for different physical parameters such as temperature, strain, flow, etc. In the electronics and optoelectronics laboratory at Benemerita Universidad Autónoma de Puebla (LEyOBUAP), there are already experimental setups of sensors as well as laser systems, where FBGs are fundamental elements for their adequate performance. However, these FBGs are commercial devices and they present limited characteristics in their transmission profiles, bandwidth and reflectivity. On the other hand, in some occasions, the delivery time from the fabricant to the customer is quite long. Therefore, it is quite important for LEyO to implement a system to fabricate this kind of devices, which would mean LEyO independence in the technological development. In the present work, results of FBGs fabrication based on the phase mask technique are presented. Such mask is optimized for UV and it has a period of 1060 nm. A Nd:YAG pulsed laser with a 5 ns pulse length and an energy of 40 mJ was used as the UV source employing the 4th harmonic generation to obtain a 266 nm wavelength. Ge-doped fiber was used to fabricate the devices.

275

2286075

Ray-tracing algorithm for the study of pump power absorption in DC fibers NARRO R.1, ARRONTE M.1, RODRIGUEZ E.1, PONCE L.1, DE POSADA E.1, FLORES T.1 1 CICATA-IPN, UNIDAD ALTAMIRA

An algorithm for the analysis of the double clad fiber design is described. The algorithm developed in the computer language MatLab, this based on the method of drawing up rays on three-dimensional graphical figures that are composed by a set of planes. The algorithm allows evaluating the trajectories of thousands of rays in sequential form and its corresponding absorption in each of the elements of the fiber according to the law of Lambert-Beer. Simulations for fibers with internal clad type ―D" (DC fibers) were carried out with the aim of evaluating the influence of the position of the nucleus within the internal clad. The results show that DC fibers present major absorption in the active core when it is displaced outside the geometric center of the internal clad.

2286143

Zinc-diffusion waveguide fabrication into periodically Poled Lithium Niobate RIOS L.A1, MATA J.O.2, CASILLAS P.3 1 Centro de Investigación Científica y de Educación Superior de Ensenada 2 Universidad Autónoma de Baja California 3 Centro de Nanociencias y Nanotecnología, UNAM

Zinc diffusion into Periodically Poled Lithium Niobate (PPLN) is a recently developed technique to fabricate waveguides useful for non-linear optical devices where high confinement of light is essential, like that to obtain tuned coherent light sources not available in the traditional laser market.. We present results obtained in the fabrication of PPLN waveguides through zinc diffusion of metallic zinc carried out at atmospheric pressure, and shows that zinc diffusion is a viable route for fabricating waveguides to study of non-linear phenomena and the periodically inverted domain structure demonstrated to survive the thermal diffusion processes.

2286145

Cuasi-continuous wave OPO based on periodically poled lithium tantalite BARBOZA N.A.1, RIOS L.A.2, CUDNEY R.S.2 1 CITEC UABC 2 CICESE

We present an optical parametric oscillator based on periodically poled lithium tantalate (PPLT). We have obtained near-infrared emission from 1.48 to 1.55µm using pump pulses of 500ns of duration. We can get tunable light by using two different methods: by changing the PPLT crystal or choosing a different periodicity. This OPO have a threshold of less than 30W Peak power and presents a 3.5% of conversion efficiency from pump power to signal.

2286151

Multimode interference effects in optical fiber for pressure sensing applications RUIZ-PÉREZ V.I. V.I.1, TECPOYOTL-TORRES M. T.T.M.2, ROMERO-ANTEQUERA L. R.A.L.1, FUENTES-FUENTES M.A. M.A.1, BASURTO-PENSADO M. B.P.M.2, IBARRAMANZANO O.G. O.G.3 1 Optics Department, National Institute of Astrophysics Optics and Electronics (INAOE) 2 CIICAP UAEM 3 FIME University of Guanajuato

Nowadays, applications of Multimode Interference (MMI) effects in semiconductor optical devices have steadily increased because their excellent properties and ease of fabrication. Development of these effects into optical fiber has been achieved through a single-mode – multimode – single-mode (SMS) fiber structure that shows a high sensitivity to the bending-loss phenomenon. Therefore, they have been efficiently implemented 276

into pressure sensing devices such as those described in this work. Basically, the SMS structure is embedded in a pressure-sensitive membrane, that transform pressure into a mechanical displacement proportional to the applied pressure, whose output is the corresponding attenuation of the transmitted intensity. Under this configuration, an all-fiber pressure sensor, with high sensitivity and repeatability, is obtained into a pressure range from -90 to +90 kPa. When the membrane thickness is changed, we have been able to measure a pressure range as large as 140 psi with this configuration. However, there are a wide range of opportunities depending on the membrane material. It is important to point out that, the proposed all-fiber MMI pressure sensor is characterized by an ease of manufacturing and a low-cost that includes the inexpensive required instrumentation.

2286153

Optoelectronic auto-sync pass filter DÁVILA PINTLE JOSÉ ANTONIO DPJA1, CALDERON FLORES BENJAMIN CFB1, REYNOSO LARA EDMUNDO ELE1, RENDÓN MARIN MANUEL RMM1 1 Benémerita Universidad Autónoma de Puebla/ Facultad de Ciencias de la Electrónica

Auto-sync pass filters are an important element in systems of phase sensitive detection (lock-in), allowing the passage of the measured signal rejecting unwanted signals outside the transmission bandwidth of the filter, the filter must be dynamic and match its frequency of maximum transmission with the frequency of the signal to be measured which is determined by the needs of the experiment. Here we report the design of a band pass filter with maximum transmission frequency and quality factor adjustable by using light depend resistance (LDR) whose value is controlled by the intensity of a light emitting diode (LED) controlled by a control system that adjusts the values to get maximum transmission and bandwidth adjustable.

2284975

Raman spectroscopy of minerals and the effect of polished surface MENESES-NAVA M.A.1, ROBLES-CAMACHO J.2, SICARDI-SEGADE A.1, BARBOSAGARCIA O.1, RAMOS-ORTIZ G.1, MALDONADO J.L.1 1 Centro de Investigaciones en Óptica A.C./2Centro INAH Michoacán

The mineral composition of archeological samples is commonly determined by x-ray diffraction and electronic microscopy, but both techniques are destructive and expensive. An alternative non destructive technique is Raman spectroscopy, but has been reported that its application to archeological samples is restricted because the signal is dependent on the surface quality of the sample [1]. So in this work we present the effect of the surface quality on the Raman spectra of geological samples (jadeite, microcline and chalcedony) with different polished grades. The Raman spectra were measured with a 532 nm CW and pulse lasers to discriminate between the fluorescence and Raman signal. The results show that the Raman signal does not change significantly with the polished grade, but the induced fluorescence does change considerably. [1] L‘Homme et le precieux matieres minerales precieuses, Ed. Marie-Helene Moncel & Franguis Frohlich, Bar International Series 1934 (2009)

-2286223

Holographic switcher for fiber optic cable SEMLALI M.1, GROSMANN M.2 1 Faculté des sciences, Université Mohammed V-Agdal, Rabat, Maroc 2 Groupe de Recherche en Photonique, Université Louis Pasteur, Strasbourg, France

The development of fiber optics communications requires the use of cables with fiber optics. It is frequently necessary to connect a piece of cable to another (or to others). This means to transfer information carried by optical fiber a of an optical cable A in another optical fiber b (or several other c, d, etc ...) of another optical cable B (which can be the same one or others in case of multiplexing). These operations can be done by using a ―holographic switcher‖. A holographic switcher is prepared in the following way: We record on the same holographic plate several Fourier holograms. Each of them is recorded with a reference beam oriented in the direction (usually normal incidence) where the beam to be injected will come from during utilization. Each of 277

them is recorded with an object beam coming in each case from the direction of each different fiber in the cable B in which the beam shall be injected after the switching. At reconstruction, the reference beam transmitted by fiber a, illuminate the chosen coupler-switcher hologram (usually normal incidence). The hologram transmits the reconstructed beam which is thus injected in the proper optical fiber of the second cable. Holographic switchers can be designed in different ways. But their great advantage is that once designed, they can be reproduced very reliably, quickly and cheaply compared with conventional glass optical components.

OIS Optical Interactional Science 2283998

Effects of primary spherical aberration, coma, astigmatism and field curvature on the focusing of ultrashort pulses: experimental results GONZÁLEZ-GALICIA M.A.1, GARDUÑO-MEJÍA J1, ROSETE-AGUILAR M1, BRUCE N.C.1, ORTEGA-MARTÍNEZ R1 1 Universidad Nacional Autónoma de México, CCADET

In this paper we evaluate the electric field distribution, by using scalar diffraction theory, near the focal plane of a lens for Gaussian illumination and a well-collimated pulse beam incident on an achromatic doublet. The effects of primary aberrations: spherical aberration, coma, astigmatism and field curvature are analyzed for 200fs pulses @810nm incident on the lens. An experiment was performed to measure the pulses at the focus of the lens by using the two photon absorption (TPA) autocorrelation method. The Theoretical results are compared to experimental results.

2284558

Two-photon absorption and lasing in novel fluorene polymers ROMERO SERVIN S.1, RAMOS ORTIZ G.1, CARRILES R.1, MALDONADO J. L. 1, CASTRO CAMUS E.1, ZOLOTUKHIN M. G.2 1 Centro de Investigaciones en Óptica A.C. 2 Universidad Nacional Autónoma de México.

Organic semiconductors can be used for low cost two-photon infrared pumped lasing systems emitting in the visible. In this context, organic polymers with delocalized electrons can show large optical nonlinearities and high gain coefficients. Recently, many studies have reported the development of organic semiconductors with efficient two-photon activity. These materials have large two-photon absorption cross sections and high fluorescence quantum yields and can be used in two-photon pumped lasing systems. However, few reports have dealt with the measurement of cross sections for stimulated emission on these materials in order to assess their potential for laser applications. Here, we report on the stimulated emission cross section and optical gain in a novel semiconductor fluorene polymer (Poly[4,7-Bis[2´-(9´,9´dimethyl)fluorenyl]benzo[1,2,5]thiadiazole]) that exhibits two-photon absorption of the order of 6000 GM (1 GM = 10E-50 cm4 s) at 740 nm and a quantum yield of 1. Stimulated emission cross sections were measured through transient absorption experiments using fs laser pulses and white light continuum in a pump-probe configuration. The polymer exhibited optical gain in the wavelength range 500 – 600 nm and demonstrated to be a promising candidate for a two-photon pumped tunable laser system.

2284924

Soliton compression in tapered hollow-core photonic bandgap fibers GONZÁLEZ BAQUEDANO N.1, VARGAS S.1, ARZATE N.1, TORRES I.1, MARTÍNEZ RÍOS A.1, CEBALLOS HERRERA D.E.1, FERRANDO A.2, MILIÁN C.3 1 Centro de Investigaciones en Óptica A.C. 2 Departamento de Óptica, Universidad de Valencia 3 ITACA, Universidad Politécnica de Valencia

278

Hollow-core photonic bandgap fibers have made possible the study of new nonlinear optical effects with the additional advantage that if we change its geometric configuration, it also does the way in which light is guided through the fiber, directly influencing the generation of such phenomena. Pulse compression is one of that nonlinear optical effects, whose main application is to provide sources of ultra-short pulses. We present a numerical study of pulse compression, in the femtosecond regime, for different configurations of tapered hollow-core fibers, taking into account the third-order dispersion (TOD) and Raman scattering. Firstly, we show the effect of filling fraction, the shape of the holes and thinning of the photonic crystal fibers on the nonlinearity and TOD. Subsequently, solving the nonlinear Schrödinger equation, we study the compression experienced by the pulse as it propagates through the fiber. References [1] Dimitre G. Ouzounov et al, Opt. Express Vol. 13 6153 (2005) [2] A.D. Bessonov, A.M. Zheltikov, PRE Vol.73 (2006) [3] J.C. Knight, F. Gerome, W.J. Wadsworth, Opt. Quant. Electron Vol. 39 1047 (2007) [4] A.V Gorbach, D.V. Skiryabin, Opt. Express Vol. 16 4858 (2008) [5] Yichang Meng et al, Optics Communications Vol. 283 2411 (2010)

2284980

Quantum security in homodyne reception using weak coherent states GARCIA E.1, LOPEZ J.A.2, MENDIETA F.J.2, ARVIZU A.2 1 Universidad Autónoma de Baja California 2 CICESE Research Centre

In the scenario of quantum cryptography Weak coherent states (WCS) are being used with continuos variables detection for determinate the security level in presence of an eavesdropper. For these low-photon-number applications, simultaneous field quadrature measurements are frequently required, such as in the detection of multilevel modulations in the communications environment. For this task multiport balanced homodyne detection (BHD) structures are employed, based on the splitting of the received field into its (noncommutating) in-phase (I) and quadrature (Q) components and their separate beating with a local oscillator (LO) in two BHD. This allows the simultaneous measurements of the 2 quadratures at the price of an additional noise due to the vacuum fields that leak via the unused ports resulting in a modified Husimi function for joint probability distribution for I and Q. These schemes require the proper optical phase synchronization between the LO and the incoming field, which constitutes a challenge for WCS reception. To achieve this, a Costas loop is implemented for low photon number WCS, with the design of an optimum feedback scheme considering the phase diffusion of WCS generated by semiconductor lasers. We implemented an optical Costas loop at 1550 nm based on polarization splitting of the laser field to detect the both quadratures simultaneously in free space. We present experimental and theoretical results on the performance of the mutual information between Alice and Bob due the phase error for different photon numbers, which have an impact on the optimization of the loop filter.

2285020

Optical waveguide writing in photochromic material: photoinduced optical properties by femtosecond laser GUTIÉRREZ M.1, RODRÍGUEZ A.1, BALDERAS R.E.1, CAMACHO S.2, CANO M.2, ELIZALDE L.E.3, LEDEZMA R.3 1 Universidad Autónoma de San Luis Potosí 2 Centro de Investigación Científica y de Estudios Superiores de Ensenada 3 Centro de Investigación en Química Aplicada

We report on a study of the interaction of a pulsed laser Ti: sapphire with an spiropyran polymer. Such a polymer is photochromic, which has potential applications in integrated optical devices. A thin film of polymer deposited on a glass substrate is irradiated with ultrashort pulses from a laser Ti: sapphire (with a photon frequency ω). The film shows a two-photon absorption effect that is reflected in the generation of channel waveguides. Since the formation of such channels show this type of irradiation, using an ultrashort laser pulses, absorption band in the visible can be induced with a photon frequency 2ω, thus we demonstrate the use of femtosecond pulses to accomplish microchannel formation with photochromic response.

279

2285036

Nonlinear spectroscopy of isotropic and anisotropic metallic nanocomposites in silica FERNÁNDEZ-HERNÁNDEZ R.C1, TORRES-TORRES C.2, CHEANG-WONG J.C.1, CRESPO-SOSA A.1, RODRIGUEZ-FERNÁNDEZ L.1, RANGEL-ROJO R.3, OLIVER A.1, REYES-ESQUEDA J.A.1 1 Instituto de Física, Universidad Nacional Autónoma de México 2 Sección de Estudios de Posgrado e Investigación, ESIME-Z, I.P.N 3 CICESE/Depto. de Óptica

Nonlinear spectroscopy of isotropic and anisotropic metallic nanocomposites in silica R. C. FernándezHernández1, R. Gleason-Villagran1, C. Torres-Torres2, J. C. Cheang-Wong1, A. Crespo-Sosa1, L. Rodriguez-Fernández1, A. López-Suarez1, R. Rangel-Rojo3, A. Oliver1, J. A. Reyes-Esqueda1 1Instituto de Física, Universidad Nacional Autónoma de México, México, D. F. 04510, México 2Sección de Estudios de Posgrado e Investigación, ESIME-Z, I.P.N, México, D. F. 07338, México 3CICESE/Depto. de Óptica, A.P. 360, Ensenada, B. C. 22860, México reyes@fisica.unam.mx We have studied the nonlinear absorption and refraction of metallic isotropic and anisotropic nanocomposites of Au and Ag nanoparticles embedded in matrices of SiO2, by using the Z-scan technique in the picosecond regime, and by varying the incident wavelength and irradiance. In the case of the anisotropic nanocomposites, the nonlinear optical response was determined exploring mainly the minor and major axes of the prolate anisotropic nanoparticles, using wavelengths close enough to the respective plasmon resonances, and varying also the polarization in order to measure the different components of the third order susceptibility tensor, χ(3). The results show a superposition in the nonlinear absorption, that is, the simultaneous presence of both positive and negative types, close and far enough to the surface plasmon resonance, which affects directly the nonlinear refraction. We have also found that the inter- and intra-band transitions of the metallic nanoparticles contribute positively to the nonlinear absorption, while the hot-electrons contribute negatively, at this temporal regime, and when the irradiance on the sample is increased. On the other hand, the inter-band transitions contribute negatively to the nonlinear refraction, whereas the intra-band transitions and hot-electrons contribute positively.

2285216

Carrier dynamics and nonlinear optical study on semiconductors PÉREZ-HERNÁNDEZ B. G.1, GARDUÑO-MEJÍA J.1, MORALES-SAAVEDRA O. G.1, CASTAÑEDA-AVIÑA L.2, RODRÍGUEZ-ROSALES A. A.1, ORTEGA-MARTÍNEZ R.1 1 Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México. 2 Instituto de Física, Benemérita Universidad Autónoma de Puebla.

Ultrashort pulsed lasers have been demonstrated as effective tools for the non-destructive examination (NDE) of energy transport properties in thin samples, in particular for the investigation of transient dynamics as well as nonlinear optical properties in semiconductors and metals. In this work we present two NDE pump-probe techniques known as Transient-Thermo-Reflectance and Transient-Thermo-Transmitance (TTR and TTT) for the study of transient dynamics in novel semiconductor materials. Each technique enables to monitor the change in reflectance or transmittance of the sample surface as a function of time on a sub-picosecond time scale. Changes in reflectance and transmittance can then be used to determine properties of the sample. In the case of metals, the change in reflectance or transmittance is related to changes in temperature and strain. The transient temperature profile at the surface is then used to determine the rate of coupling between the electron and phonon systems as well as the thermal conductivity of the material. In the case of semiconductors, the change in the reflectance and transmittance are related with local electronic state changes and temperature. In both techniques, a femtosecond pulse is split into an intense heating pulse and a weaker probe pulse. The heating pulse is used to generate the transient event to be observed. Control of the optical path length of the probe pulse produces a variable time delay between the pump and probe pulses. The probe then takes a snapshot of the reflectance or transmitance at a specific experimental time delay relative to the pump, whit a temporal resolution on the order of the probe pulse duration. Preliminary results are presented using GaAs and novel semiconductors materials, based on and ZnO:X (X=Cr, In, F). Additionally, the cubic non linear optical properties of these materials are also presented. 280

2285181

Real-time self-referenced phase reconstruction proposal of ghz-bandwidth nonperiodical optical pulses by in-fiber semi-differintegration CUADRADO-LABORDE C.1, ANDRÉS M. V.2, LANCIS J.3 1 Centro de Investigaciones Ópticas 2 Universidad de Valencia 3 Universitat Jaume I

Different techniques have been developed to measure the phase information of short light pulses, such as the frequency-resolved optical gating (FROG) and the spectral phase interferometry for direct electric field reconstruction (SPIDER). However, they require a rather bulky experimental setup and complex numerical algorithms, being best adapted for femtosecond pulse durations. Recently, it was proposed the phase reconstruction using optical ultrafast differentiation (PROUD), best suited for GHz-bandwidth light pulses. In PROUD, the signal‘s instantaneous frequency is retrieved from two temporal intensity measurements, namely the input and output pulses of a first-order differentiator. Unfortunately, the algorithm used in PROUD also needs the numerical calculation of the first-order derivative of the modulus of the input signal, which makes the procedure very sensitive to the presence of noise, and thus requiring a large averaging in the photodetection process, precluding real-time applications. This technique was later optimized to enable real-time capability by using two linear-amplitude spectrally-shifted optical filters, plus differential photo-detection. Here we show two new simpler proposals for the instantaneous frequency detection based on in-fiber semidifferintegration, where by semi-differintegration we mean either a 0.5th-order differentiation or integration. In both cases, the signal‘s temporal phase can be obtained by simple dividing the intensities of the input and output pulses of a spectrally-shifted semi-differintegral operator. The proposed algorithms are inherently nonsequential and self-referenced providing real-time applicability. We numerically prove the viability of these proposals.

2285377

Photophysical properties of metallic-phthalocyanines dispersed in sonogel optical glasses TORRES-ZÚÑIGA V.1, SÁNCHEZ-VERGARA M.E.2, MORALES-SAAVEDRA O.G.1, ALVAREZ C.2, BAÑUELOS J.G.1 1 Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, CCADET-UNAM. 2 Facultad de Ingeniería, Universidad Anáhuac

Phthalocyanines (Pcs) based compounds having central metallic atoms of Ga, Ni, and Fe were successfully embedded in porous silica gels via a catalyst-free sol-gel (sonogel) process in order to fabricate optically active solid-state hybrid glasses in both bulk and thin film formats at different dopant concentrations. The organic-inorganic hybrid composites obtained with room temperature processing showed stable mechanical performance, controllable geometrical shapes, good transparency and homogeneity suitable to perform morphological and linear and nonlinear optical (NLO) characterizations. AFM studies, epi-microscopy surface evaluation, refractive-index measurements (via Brewster‘s angle method), FTIR, Raman and absorption (UV-vis) spectroscopies were carried out in selected bulk samples. Thin film hybrid samples were also studied via the NLO techniques such as third-harmonic generation (THG) and Z-scan. The morphological and spectroscopic results showed a homogeneous dispersion of the organometallic compounds within the highly pure SiO2-sonogel network. Moreover, Brewster‘s angle measurements demonstrated the feasibility of tuning the refractive index of the samples by varying the chromophore dopant concentration. Additionally, the electronic absorption spectra showed band shifts of the two characteristic bands (Q-band: ~600nm and Bband: ~400 nm), evidencing the formation of molecular aggregates for all hybrids and modifications of the optical properties. Finally, THG and Z-scan measurements in hybrid thin films exhibit important NLO activity and good optical limiting performance. We conclude that the chemical variation of the central metallic ions in Pcs potentially modify and promote the NLO-effects in these compounds and that the sonogel matrix act only as an inert protective shell giving stable mechanical and thermal properties to the guest dopant compounds. 281

2285587

A model for light transmission through a thin nonlocal-nonlinear media ARROYO CARRASCO M.L.1, MÉNDEZ OTERO M.M.1, REYNOSO L. E.2, CHÁVEZCERDA S.3, ITURBE CASTILLO M.D.3 1 Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla 2 Facultad de Ciencias de la Electrónica, Benemérita Universidad Autónoma de Puebla 3 Instituto Nacional de Astrofísica, Óptica y Electrónica

The transmission of an intense light beam through a thin nonlinear sample has been extensively studied, like in self phase modulation experiment and Z-scan technique, with different approaches: the Gaussian decomposition method, the Huygens-Fresnel principle, the diffraction theory, etc., The nonlocality in the response of the media in general leads to solve more than one differential equation. In this work we present a simple model to calculate, in a numerical way, the on axis far field intensity in a Z-scan experiment or the far field pattern in spatial self phase modulation experiment by means of the diffraction theory and taking into account the locality of the thin nonlinear media. The obtained results show that the peak-valley separation distance and the transmittance difference in a Z-scan experiment and the number of rings, size and intensity distribution of the far field pattern in the spatial self phase modulation experiment are functions of the locality in the nonlinear response of the media. The proposed model describes in good approximation experimental results for samples, like absorbing liquids, liquid crystals, metal nanoparticles, etc., with different kind of nonlinear response. This model is valid for any value of the nonlinear phase shift.

2285720

Running hologram technique with arbitrarily fixed phase coupling for hole-electron competition characterization in undoped photorefractive titanosillenite crystals OLIVEIRA I. 1, FRESCHI A. A.2, FREJLICH J.1 1 Faculdade de Tecnologia-Universidade Estadual de Campinas – UNICAMP 2 Universidade Federal do ABC

Photorefractive crystals are electro-optic and photoconductive materials. When a spatially modulated pattern of light is projected onto the crystal, charge carriers are excited from photoactive centers in the band gap and a space-charge field modulation arises because of photoconductivity. Because of the electro-optic effect, this space-charge field produces an index-of-refraction modulation, that is to say a phase hologram, in the crystal volume. If electrons and holes are involved in this process and if they are photoexcited from independent centers in the bandgap, more than one hologram arise, with different relative phases. Different techniques for characterization of hole-electron competition in photorefractive materials have been already reported in the literature, where holographic erasure and running hologram are two of the most interesting ones. [1-5]. The use of stabilized and self-stabilized holographic techniques [6] are particularly interesting because of the possibility of coping with environmental perturbations. In this work we report on the use of phase modulation in two-wave mixing with negative feedback to record stabilized photorefractive running holograms with arbitrarily fixed phase shift between the transmitted and the diffracted beams behind the crystal in the presence of hole-electron competition. We measure the diffraction efficiency as a function the phase shift between the transmitted and as a function of the velocity the self-stabilized running hologram, in the presence of an applied electric field. From these data we are able to determine several parameters characterizing the presence of holes and electrons in the recording process. REFERENCES [1]- I. Aubrecht et al., J. Opt. Soc. Am. B, vol.12, pp.1918 (1995) [2]-I. de Oliveira et al., Appl. Phys. Lett. vol.95, pp. 241908 (2009) [3]G.Valley, J.Appl. Phys. Vol.59, pp.3363 (1986) [4]-G. Pauliat et al., Opt.Commun, vol.61, pp.321 (1987) [5]-V. Jerez et al., J. Appl. Phys. Vol.109, pp. 024901 (2011) [6]-A.A. Freschi and J. Frejlich, Opt. Lett., vol.20, pp.635 (1995)

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2285841

Synthesized nano-ring structures on 4x2 gaas surfaces probed by RAS and STM ORTEGA GALLEGOS J.1, GUEVARA L.E.1, BALDERAS R.E.1, LASTRAS L.F.1, LASTRAS A.1 1 Instituto de Investigación en Comunicación Óptica, UASLP

In this work we report GaAs-nanoscale structures with annular geometry grown on GaAs substrates with 4x2 surface reconstruction. The structures were grown (self-assembled) at high temperature without flow of arsenic. Conventionally, such structures are manufactured at relatively low temperatures (around 200 C). In contrast, this study used a temperature of 600 C. For the 4x2 surface reconstruction of the GaAs substrate were deposited about ten monolayers of GaAs, without flow of arsenic. This results in structures with annular geometry, with average radius of 100 nm and low surface density. We report measurements of Differential Reflectance Spectroscopy as an in situ technique, which monitors the evolution of the formation of the nanoscale structures, as well as images of Scanning Tunneling Microscopy, which allow real-space description of the above structures.

2285908

Two-photon temporal self-imaging TORRES-COMPANY V1, LANCIS J2, LAJUNEN H3, FRIBERG A.T.4 1 Purdue University, West Lafayette, IN, USA/ 2Universitat Jaume I, Castello, Spain 3 University of Eastern Finland, Joensuu, Finland 4 University of Eastern Finland, Joensuu, Finland; Aalto University, Espoo, Finland; Royal Institute of Technology (KTH), Kista, Sweden

Entangled photon pairs generated through the process of spontaneous parametric down-conversion (SPDC) in nonlinear crystals have recently attracted a lot of attention due to their interesting applications, e.g., in quantum information processing and quantum metrology. Here, the second-order analogue of the self-imaging Talbot effect is described and theoretically analyzed in the time domain. Rich phenomena are observed in coherence propagation along dispersive media of mode-locked two-photon states with frequency entanglement exhibiting a comb-like correlation function. These states have been experimentally generated through periodic spectral filtering of the two-photon spectrum with a Fabry-Perot cavity. First, the secondorder correlation function revives (self-images) to its initial configuration when the group delay dispersion values of the dispersive media placed in the arms of signal and idler photons add to a multiple of the Talbot parameter T squared/pi, with T the period of the two-photon coherence. Note that this situation is completely different from that arising in the dispersion cancellation phenomenon, in which group delay dispersion for signal and idler photons cancel each other. Further, coherence propagation undergoes fractional revivals as a result of Gauss sums arising from Schrödinger evolution of the correlation function. Although revivals are an exact consequence of the periodic nature of the two-photon correlation function, practical implication, which only involves a finite number of propagating modes, exhibits some good but approximate self-imaging. The two-photon temporal Talbot effect suggests a straightforward and implementable way to transfer remotely frequency standards embedded on ultracompact quantum light sources.

2285962

Quadrupolar Second-Harmonic Generation By Higher-Order Gaussian Beams GONZALEZ M A, MAYTORENA J A 1 Posgrado en Ciencias Físicas, UNAM/ 2Centro de Nanociencias y Nanotecnología, UNAM

Optical second-harmonic generation (SHG) has been used widely to study surface and interface phenomena in centrosymmetric systems. Besides planar surfaces, other shapes have also been explored, such as spherical particles. SHG from the surfaces of Si nanocrystals within a matrix was also reported. The observed SH pattern suggests an induced nonlinear source with nonlocal character and depending on the in homogeneity of the incident field. Here, we study the scattering of optical second-harmonic (SH) radiation from a homogeneous centrosymmetric thin composite material illuminated by a higher-order Gaussian laser beam. The induced nonlinear quadratic polarization in the nanocomposite is taken as quadrupolar type. The 283

transverse field distribution of the incident beam is described by Hermite-Gauss (HG) or Laguerre-Gauss (LG) modes. We calculate the SH radiation angular patterns generated by several incident combinations of spatial modes and polarizations. Excitation with radially and azimuthally polarized doughnut modes, and helical beams with linear or circular polarization are considered in particular. We found that this quadrupolar SHG depends sensitively on the transverse structure and polarization of the driving field. We comment on SH efficiency, forward scattering, angular momentum conversion and related issues.

2286006

Numerical Study Of The Medium Thickness In The Z-Scan Technique MARCELA MARIBEL MÉNDEZ OTERO M.M.M.O.1, MARCELO DAVID ITURBE CASTILLO M.D.I.C.2, MAXIMINO LUIS ARROYO CARRASCO M.L.A.C.1 1 Benemerita Universidad Autónoma de Puebla, Dependencia Facultad de Ciencias Físico Matemáticas/ 2Instituto Nacional de Astrofísica, Óptica y Electrónica, dependencia Departamento de Óptica.

The optical characterization of non linear media through the Z-scan technique considers initially a thin medium (with a thickness much less than the beam depth of focus). It has been observed that increasing the thickness of the medium the transmittance increases, this means that n2 increases, for this reason we will present a numerical model to determinate the minimum thin and the maximum thick medium limit. A thin medium is considered as a thin lens with focal length F [1] and a thick medium can be regarded as a set of such thin lenses set with focal lengths F [2], these lenses are contained in a medium whit a refraction index different than air. This analysis is made through Matlab using the theory of Gaussian beams, ABCD matrices and the q parameter, elementary theory in the development of this work, where the main feature of this model is that the nonlinearity type of the medium is considered as an integer constant in himself focal length [3]. We present the graphs obtained from Z-scan for thick medium with both thermal and Kerr non lineal. [1] M. Sheik-Bahae, A. A. Said and E. W. Van Stryland. High-sensitivity, single-beam n2 measurements. Optics letters, Vol. 14 No. 17, (1989), 955-957. [2] Mansor Sheik-Bahae, Ali A. Said, D. J. Hagan, M. J. Soileau, Eric W. Van Stryland. Nonlinear refraction and optical limiting in thick media. Optical Engineering, Vol. 30 No. 8, (1991), 1228-1235. [3] Edmundo Reynoso Lara, Zulema Navarrete Meza, M. David Iturbe Castillo, Carlos G. Treviño Palacios, Erwín Martí Panameño, and M. Luis Arroyo Carrasco. Influence of the photoinduced focal length of a thin nonlinear material in the Z-scan technique. Optics Express, Vol. 15, Issue 5 (2007) 2517-2529.

2286021

Entanglement of formation of a pair of quantum dots SÁNCHEZ-S. SERGIO S.S.1, SÁNCHEZ MONDRAGÓN J. J. J.J.2, GARCÍA-MELGAREJO J.C. J.C.2, ALEJO-MOLINA A. A.A.2 1 Institute for Energy Studies (IEE) of the University of Isthmus (UNISTMO) and Optics Department, National Institute of Astrophysics Optics and Electronics (INAOE) 2 Optics Department, National Institute of Astrophysics Optics and Electronics (INAOE)

We investigated the dynamics of entanglement of two isolated Quantum Dots (QDs), each one immersed in a cavity of the Jaynes-Cummings model (JCM) type. The Hamiltonian difference between an atom and a QD is the physical QD Dipole-Dipole interaction that often has been used to model atomic entanglement. On the other hand, there is an outstanding analysis of CQED entanglement in the framework of the JCM, suitable to distinguish the actual role played by such Dipole-Dipole coupling and QED entanglement on its own. We show analytically that initial entanglement has effects of very much interesting such as temporal evolution that includes the so-called sudden death effect. In which the dipolar interaction effects change markedly due to its nonlinear characteristic contained in the Hamiltonian of quantum dots, which in principle is the type JCM but in reality is a collective Hamiltonian of the Dicke type. Therefore the physical properties are more innovative than the simple two-level atoms which should allow greater control for the technological applications of quantum computing. Entanglement has marked a new way to reinterpret the quantum nature of computer technology due to the incorporation of quantum processing units with so-called quantum bits (qbits), represented as dual units that open up infinite possibilities for processes parallel at least theoretically 284

much faster any classical computational process. Therefore a precise measurement is needed to quantify the degree of entanglement for a system such as two q-bits, which in this case we represented for two entangled quantum dots. A quantifiable measure widely used is the entanglement of formation of a mixed state (density matrix) of a bipartite quantum system, defined as the minimum number of singles needed to create an ensemble of pure states that represents the density matrix of the system.

2286071

Study of light propagation in random nanoparticles arrays JUAREZ-MORALES J.C.1, MUNOZ-LOPEZ J.1, MARTINEZ-NICONOFF G.1 1 Instituto Nacional de Astrofisica, Óptica y Electrónica

Elementary long-range plasmon modes are described assuming an exponential dependence of the refractive index in the neighborhood of a conductive thin film. The study is performed using coupling mode theory. The interference between long-range plasmon modes allows the synthesis of surface sinusoidal plasmon modes which can be considered as generalized plasmon modes completely coherent. These sinusoidal plasmon modes are used for the synthesis of new surface plasmon modes partially coherent, which are obtained by means of an incoherent superposition of sinusoidal plasmon modes where each period is considered as a random variable. The kinds of surface modes generated have a profile easily tunable which is controlled by means of the probability density function associated to the period. The numerical simulation for sinusoidal, Bessel, Gaussian and Dark Hollow plasmon modes are presented.

2286083

Photoluminescence properties of copolymers derived of 3-alkylthiophenes and Thiophenes containing NLO chromophores RUEDA-ANAYA C.M.1, CASTRELLÓN-URIBE J.1, GÜIZADO-RODRÍGUEZ M.1 1 Universidad Autónoma del Estado de Morelos

Polythiophene is a well known class of conducting polymer that exhibits good thermal and environmental stability and easy functionalization. Polythiophene derivatives are synthesized by the introduction of different groups at the 3-position as NLO chromophores. The functionalization of polythiophenes combines interesting optical properties as non linear optical (NLO) and photoluminescence (PL). Novel polythiophenes derivatives derived of 3-alkylthiophenes (alkyl=hexyl, octyl) and thiophenes functionalized with NLO chromophores: (S)-(−)-1-(4-nitrophenyl)-2-pyrrolidinemethanol and 2-[Ethyl[4-[2-(4-nitrophenyl) ethenyl]phenyl]amino]ethanol were evaluated optically. Copolymers films obtained by spin coating technique were analyzed. Their optical responses were measured when they were excited optically. The fluorescence signals measured at 650 nm when the copolymers were excited at 488 nm (blue light) were studied to different excitation powers. The slope of the optical response of the copolymers films was around 6%/mW. The evaluation of photoluminescence properties of conjugated polythiophenes are important due to their potential applications in light-emitting diodes (LEDs), solar cells and chemical sensors.[1] [1] Maiti, J. ; Dolui, S.K. J. Lumin. 2009, 129, 611.

2286182

Tuning visible emission light from ZnO quantum dots OLIVA J.1, DE LA ROSA E.1, TORRE A.2, SALAS P.3 1 Centro de Investigaciones en Óptica A.C 2 Universidad Autónoma de Nuevo León 3 CFATA UNAM

Nowadays, many research groups around world are working to find efficient lighting sources. Zinc Oxide (ZnO) which is an innocuous and inexpensive material, has demonstrated its capacity to produce visible emission. However, the main problem in this material is tailoring its defects to produce visible light. In this work, we demonstrated that by changing the temperature of synthesis in a wet chemical method from 500C to 1000C as well as the amount of surfactant, we can control the types of defects which produce blue or yellow emission individually, or a combination of both emissions (white light). To identify the type of defects which 285

produce visible emission, we annealed our samples from 4000C to 8000C and we changed the excitation wavelength, from here, it was deduced that blue emission is produced by surface defects produced by interaction of amines with OH groups and yellow emission was caused by oxygen vacancies. In addition, it was obtained nanoparticles with spheres and rods shape, whose sizes ranging from 4 to 10 nm according to HRTEM images. This result indicates that our nanoparticles can be used as ―seeds‖ to growth thin films with hydrothermal procedures, which would be suitable to fabricate ZnO based LEDs. Also, we studied the confinement effects of those nanoparticles by calculating the energy band gap value (EG) from their absorption spectra. In this way, we found that an increase in temperature on the synthesis process produced a red shifting in the absorption band, that in turn, decreases the EG value.

Friday 19 Plenary 6 2285429

A review of adaptive optics in vision science DAINTY J.C. National University of Ireland, Galway

Adaptive Optics (AO) has two broad areas of application in vision science. One is to the imaging of the retina and the other is to the subjective evaluation, i.e. the psychophysics, of vision. In imaging, adaptive optics is a supplementary optical system that can be added on to a variety of imaging devices, such as a whole field fundus camera, a scanning laser ophthalmoscope or an optical coherence tomography (OCT) instrument. The first adaptive optics images were produced by Roorda and Williams over a decade ago. In the early work in this field, it was an achievement in itself to build an AO system that improved retinal images, but recently proper optical design and engineering has resulted in instruments of excellent quality, resulting, for example, in spectacular images of rod photoreceptors by Dubra and others. Commercial instruments are now being developed and will transform retinal imaging. The second area where adaptive optics is useful is in correcting, or altering, the wavefront aberration of the eye, for the purpose of psychophysical testing of human vision. The optical quality of the eye is rather poor by engineering standards; fortunately visual perception is mainly neuroscience, not optics. For example, if one corrects the aberrations of the eye, can a subject be given ―super-vision‖, or at least improved vision? A more practical scientific application is vision simulation, in which the implantation of an intraocular lens (IOL) is simulated using adaptive optics: this offers great flexibility to test new designs of IOL. The concepts and elements of adaptive optics have also influenced other areas of ophthalmology, such as laser refractive surgery. My talk will give a broad overview of the past and possible future for adaptive optics in both retinal imaging and visual perception.

FDI 9 Fabrication, design and instrumentation 2284586

Vector-wave holographic optical mass-storage YATAGAI T., BARADA D. Utsunomiya University

Holographic data storage is one of the most promising techniques in future mass-storage systems after Blu-ray Disc, since it has excellent features, such as storage capacity, access speed, energy consumption, cost and so on. An optical storage system with 3 Gbyte/disc of storage capacity and 3 Gbit/sec of access speed is developing. Angular and shift multiplexing techniques are developed to increase storage capacity. In this paper, an alternative approach to increasing storage capacity is proposed, in which polarization information in vector wave of light is employed. Recently, retardagraphy that is an optical recording technique with a single beam was proposed as an application to optical storage by the authors. In the retardagraphy, a retardance pattern of a birefringent object can be recorded on a polarization-sensitive medium as a recording medium. In other words, a pattern of the phase difference between two orthogonal polarization components of a vector 286

wave can be recorded. In the conventional holography, a recording laser beam must be split into a signal beam and a tilted reference beams. In contrast, the retardagraphy employs the in-line recording setup so that the optical system for recoding and reading is very simple and robust for environmental turbulence. Binary and multi-level phase patterns displayed by a parallel-aligned liquid crystal spatial light modulator (PALSLM) were recorded on the polarization-sensitive medium, such as azobensene polymers and PQ-PMMA. An imaging polarimetry system measured retardation between two orthogonal polarization components of reconstructed images. In a preliminary experiment, orthogonal polarization-, 10-time-angular- and 100 micron shift-multiplexing were combined and successfully performed in vector-wave recording.

2284611

Improved error-reduction algorithm for designing phase diffractive optical elements AGUIRRE-OLIVAS D, ARRIZÓN V, SÁNCHEZ-DE-LA-LLAVE D Instituto Nacional de Astrofísica, Óptica y Electrónica

The design of diffractive optical elements (DOEs) to generate a desired light intensity distribution has been studied in the realm of diffractive optics. Many algorithms have been proposed to perform this design, such as genetic algorithms, simulated annealing and iterative Fourier transform algorithm (IFTA) amongst others. Due to its fast convergence and easy implementation, the IFTA has been widely employed for the design of DOEs. The IFTA is based on going back and forth between the DOE plane and its diffraction domain employing the Fourier transform operator. In this work, we propose a modified error-reduction type IFTA algorithm to improve the performance of a DOE. As usual, the DOE is evaluated by the efficiency and error which are calculated in the Fourier plane. Several particular features of the algorithm are: 1) Its execution is controlled by two parameters: goal efficiency and goal error. 2) For each cycle, the amplitude field correction in the diffraction plane is performed (keeping the phase as a degree of freedom) in two sequential steps: first, the amplitude is corrected to transform the efficiency into the goal efficiency without altering the error; and second, the amplitude is modified to perform a gradual reduction of the true error without changing the efficiency. 3) The goal efficiency is gradually reduced along the execution while the goal error is maintained. 4) This gradual reduction of the goal efficiency and the gradual reduction of the true error during each cycle avoid stagnation. 5) As a result the algorithm always converges to get the goal error, which can be as small as desired, without a significant reduction in the final true efficiency. 6) The algorithm shows an overall performance which is better than previously employed algorithms like plain Gerchberg-Saxton, AdaptiveAdditive and Mixed-Region Amplitude Freedom.

2286231

Nonlinear Abbe theory BARSI C., LU CHIEN-HUNG, FLEISCHER J.W. Princeton University

Abbe‘s theory of imaging essentially treats each Fourier mode of an object as a diffraction grating, so that resolution limits are determined by the ability to detect the first diffracted order from a given feature. Modifying the diffraction, e.g. by using structured illumination as another grating, can bypass this limit, at the expense of experimental complexity and numerical deconvolution. Further improvements can be obtained using non-sinusoidal gratings, as higher spatial frequencies of the object and grating generate lower-order daughter waves at the detector. Recently, nonlinearity was used to saturate a transmission grating, resulting in a wide-field image with theoretically unlimited resolution [2]. However, if there is nonlinearity, then there is no need to use a grating: the object itself will induce an index pattern in the material [3]. Here, we describe this dynamics and generalize Abbe‘s theory to include the effects of nonlinear diffraction. It is important to emphasize that all limitations associated with imaging, not just resolution, arise from linear theory. Nonlinear optics can break these limits by exploiting the presence and interaction of many photons at once. We demonstrate this experimentally by showing enhanced field of view and increased phase sensitivity for nonlinear propagation in a photorefractive SBN crystal.

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[1] E. Abbe, Arch. Mikrosk. Anat., 9, 413 (1873). [2] M.G.L. Gustafsson, Proc. Nat. Acad. Sci. 37, 13081 (2005). [3] C. Barsi, W. Wan, and J.W. Fleischer, Nat. Phot. 3, 211 (2009).

2285086

Fractal diffraction elements with variable transmittance and phase shift MUZYCHENKO Y.B., ZINCHIK A.A., STAFEEV S.C., TOMILIN M.G. Saint-Petersburg State University of Information Technologies, Mechanics and Optics

Investigation of diffraction fields from fractal objects can lead to development of diffraction optical elements with enhanced characteristics. The paper describes the new type of diffraction elements with fractal structure and the properties of diffraction fields, obtained from these elements. Fractal diffraction elements based on the well-known fractals, possessing exact or statistical self-similarity, but have managed amplitude transmittance and phase shift, which is correlated with the spatial characteristics of fractal. For describing these objects it is not enough the fractal dimension, instead the correlation coefficient between phase/amplitude and spatial characteristic is needed. Because of this fact these objects could be named multifractal structures (MFS). It is shown that the diffraction spectrum of MFS possesses prevailing power of high frequencies in comparison with spectra of regular two-dimensional structures or fractal structures with binary transmittance and/or phase shift. This property could be applied in the field of spatial filtering and detection of phase heterogeneities of transparent objects. Results of modeling for different types of MFS are presented and it is shown that using of MFS allows to detect the value of distortion of the initial object with high accuracy. In the study the description of fractal zone plates (FraZP) with variable transmittance and/or phase shift is presented. The results of modeling of Fresnel diffraction from FraZPs with MFS show that the value of correlation coefficient influences on the intensity distribution and the location of the focal point.

2284971

Generation of spiral patterns by obstruction of Bessel beam TOTO-ARELLANO N.I.1, MARTÍNEZ-GARCÍA A.1, RODRÍGUEZ-ZURITA G.2, RAYAS ÁLVAREZ J.A.1, SERRANO-GARCÍA D.I.1 1 Centro de Investigaciones en Óptica A.C. /2Benemérita Universidad Autónoma de Puebla

There are several techniques that generate interferometric spiral fringes. These pattern types have been proposed to the determination of phase signs and/or vortex detection. An alternative method to obtain spiral fringes (spiralgrams) is presented. The spiral pattern is generated for the interference of a truncated Bessel beam with a spherical wavefront. The phase reconstruction is achieved through simultaneous phase-shifting interferometry.

FDI 10 Fabrication, design and instrumentation 2285065

Microlenses fabrication on glass by combining laser with thermal-reflow technique FLORES-ARIAS M.T. Universidad de Santiago de Compostela

Micro-optics elements have been greatly attractive due to their wide applications. In particular, microlenses are basic components of many optical devices and systems (fiber couplers, viewing optics, laser beam shaping elements, etc). There are a big number of methods to produce microlenses, such as thermal reflow forming, stereolithography technique, mold insert, pressure difference or decompression method and hot embossing. Most of them are devoted to fabricate microlenses on photoresist. However, from several years ago people are trying to fabricate microlenses on glass because it offers compatibility with silicon micromachining, high chemical and radiation resistance, and thermal-mechanical stability. Laser direct-writing is not currently able to produce microlenses with comparable imaging and stray light properties as other methods, but has advantages in other aspects: flexibility in terms of surface shapes, diameter, and focal length; the very small dead space between lenslet of any desired shape and profile; and the simplicity of the fabrication setup. In this 288

paper we present an improved method that combines the laser direct-write technique with a thermal treatment that changes the surface profile improving the optical quality of microlens arrays fabricated on soda-lime glass substrates. These two steps give us microlenses with comparable imaging and stray light properties as obtained by other methods. In particular we use a nanosecond Q-Switch Nd:YVO4 laser and a mufla Heraeus furnace working in the range of 620ºC-670ºC. An improvement in the optical quality of the microlens arrays were obtained as temperature increases. The best microlenses array was obtained at 670ºC with the following characteristics: diameter 47.89±6.65µm; focal length 510±10µm and focal spot size 2.82±0.02µm. The presented technique has been shown to be capable of fabricating low cost microlens arrays with good optical quality

2285102

Fabrication of a deformable mirror optimized for pulse shaping QURESHI N, GÓMEZ-ARISTA I, GARDUÑO-MEJÍA J CCADET / Universidad Nacional Autónoma de México

The recent surge in interest in temporal and spectral shaping of picosecond and femtosecond laser pulses has created a need for deformable mirrors with a high degree of flexibility in one dimension. Commercially available devices typically employ hard crystalline membranes with a small number of actuators, covered with a reflective material, providing limited flexibility. In this work we report on a new fabrication method for producing large-area multilayer polymer membranes and describe its application to the instrumentation of a deformable mirror. This implementation allows for highly flexible mirrors in which mechanical properties vary along the the length of the structure in a controlled manner in order to better match optical requirements. In addition, the mechanical properties of such membranes allow for a large number of closely spaced actuators. We discuss the application of this instrument to pulse shaping experiments.

2285669

Pulsed lasers in photovoltaic technology BARHDADI A.1, HARTITI B.2 1 PSES Laboratory, ENS-Rabat, University Mohammed V – Agdal / 2LPMAER, Faculty of Sciences and Techniques, Mohammedia

Optical Thermal Processing (OTP) offer many advantages in Photovoltaic technologies focusing on the development of cost-effective solar cells performed in an automatic and continuous process. There exist several OTP which operate either in an adiabatic regime with coherent light (Pulsed Lasers) or in an isothermal short duration regime with incoherent light (Rapid Isothermal Processes). Most of these optical heating techniques are beneficial and useful because they are operating in very fast ways and clean traditions. Also, they are very economic in term of processing time and power consumption. However, despite of their attractive features, they introduce various structural and electrical active defects in the semiconductor materials used in solar cell technologies. This is the main barrier which prevents the development of OTP for large photovoltaic industrial applications. In this paper we report experimental results on laser induced electrical defects in silicon materials usually used in photovoltaic technologies. Different pulsed lasers including Ruby, Nd-Yag and Excimer have been considered. We examine their effects in wide power range on the electrical properties of silicon Schottky diodes. Some of the observed effects are compared to those resulting from conventional thermal processing.

2285950

Method of producing tapered fibers VEGA F., TORRES C.O., MATTOS L. Universidad Popular del Cesar

This paper presents a method for manufacturing tapered fiber, through elongation by the combination of heating and stretching butane torch controlled, the movement is made through bipolar stepper motors with a driver and a Microcontroller L293B PIC16F628A for motion control, optical fiber was observed under a

289

microscope and a micrometer rule 2.5μm apart to calculate the diameter of the fiber. Reduced diameter of 100µm multimodo de fiber to 10µm.

2286190

Multilayer thin film coatings for reduced infrared loss in hollow glass waveguides BLEDT C.M., KOPP D.V., HARRINGTON J.A. Rutgers, the State University of New Jersey, Department of Materials Science & Engineering

Hollow glass waveguides (HGWs) are an attractive alternative to traditional solid-core and 2D photonic crystal, infrared transmissive fibers. Applications for HGWs at wavelengths longer than 2 microns include use of the guides for the delivery of laser power and for use as chemical and thermal sensors. To date, the most common HGW is one with an inner coating of Ag followed by a single-dielectric layer of AgI. These singlelayer dielectric coated HGWs have losses for a 700-micron bore guide as low as 0.2 dB/m at 10.6 microns. However, if a multilayer stack of alternating high/low index thin films is deposited instead of a single dielectric layer then the loss can be reduced substantially. In the present study, multilayer dielectric thin films have been deposited inside silica tubing using a liquid-phase deposition method. High index coating materials used include metal sulfides such as PbS while the low index materials include polystyrene (PS) and some sulfides. The emphasis for this work has been on films deposited using II-VI compounds, for example ZnS and ZnSe. To date it has been possible to deposit two-layer coatings using, for example, CdS and PS but a lower loss is possible if the coating stack is composed of three dielectric layers. In past work CdS/PbS/CdS coatings were deposited and found to have measured a loss approximately two times lower than that for a single dielectric layer at 10.6 microns. In this paper the theory of multilayer coatings will be presented along with the optical loss measurements from 2 to 12 microns for the multilayer dielectric coatings.

OE 9 Optical Engineering 2285652

High-speed speckle interferometry and multipoint vibrometry MOORE A.J. Heriot-Watt University, School of Engineering and Physical Sciences.

I review research in high-speed speckle interferometry for the measurement of transient deformations and vibrations in real time with microsecond temporal resolution. The short exposure period and high framing rate of a high-speed camera can allow low-power continuous-wave laser illumination to be used. The ability to measure vibration with both high spatial and temporal resolution, which is not provided by techniques such as scanning laser vibrometry, has many applications in manufacturing design and modal analysis. Recent improvements introduced to increase the velocity measurement range are discussed, including novel detectors and data processing strategies. All the approaches described are applicable to other types of transient deformation measured with other optical systems.

2284483

Vibration measurement in non-rigid test environment with speckle interferometry MATSUMOTO T.1, NAKAMOTO H.1, TAKIZAWA Y.1, KITAGAWA Y.1, KURATANI F.2, KOYAMA K.3, ADACHI M.4 1 Hyogo Prefectural Institute of Technology / 2Fukui University / 3Koyama Hardware Co.,Ltd. / 4Kanazawa University

We propose a new method for vibration measurement in non-rigid test environment with electronic speckle pattern interferometry (ESPI). The ESPI is useful for non-contact, real-time analysis of vibration and 2dimensional fringe map of vibration magnitude is drawn in a processed image. This method needs rigid test environment, however. When the interferometer and a vibration surface are on a non-rigid table or their environments are separated, especially at manufacturing areas, high-amplitude, low-frequency noise fluctuation overwhelms a vibration signal and the amplitude fringes disappear. To settle this difficulty, we use 290

electronic shutter function of a NTSC TV camera and reduce exposure time of a CCD image sensor. With the time reduction, we may extract an image from many input images, during whose acquisition time noise fluctuation turns back and its magnitude is so small that the vibration signal goes to be included in the image. We accumulate the images and increase the contrast of the amplitude fringe map. We evaluated usefulness of this method with circular saw vibration. The saw has a diameter of 165mm and a thickness of 1mm. A center hole of the saw is screwed to a piezoelectric actuator and is oscillated in the vertical direction to the surface. The interferometer and the saw are fixed on a rigid board and the noise fluctuation is electronically superposed on the vibration signal with sine wave. We applied the fluctuation noises with various frequencies and amplitudes and judged contrast improvement. From the experiments, it is confirmed that this method is successful for up to fluctuation amplitude of 0.06mm. The proposed method has following advantages. (1)Its performance does not depend on the wave form of the fluctuation. (2)We do not have to measure the wave form actually. (3)The method can be applied to unsteady noise fluctuations.

2284585

A dynamical light scattering technique and its application in viscoelastic networks in soft matter SARMIENTO-GÓMEZ E., GALVÁN-MIYOSHI J.M., CASTILLO R. Instituto de Física, UNAM

In this paper, we present a dynamic light scattering technique using diffusing wave spectroscopy to track the dynamics of colloidal particles embedded in a complex fluid which allows us to obtain structural and dynamical information of a transparent viscoelastic material. Scattered light of a single speckle is detected by a photomultiplier tube and the time correlation function of light intensity is calculated using a temporal average. If the particles can not explore the entire phase space, temporal average and ensemble average are not the same, a condition necessary to relate all the ensemble averages from the scattering by many particles to temporal fluctuations of the intensity. To overcome this situation, for large lag times, a CCD camera is also used for the acquisition of the scattered light as an array of detectors which enables us to perform thousands of simultaneous experiments. In this manner, the time correlation function is obtained directly by taking the ensamble average instead of using a temporal average. For short lag times, the non-ergodicity problem can be avoided by remixing the scattered light coming from the sample by the use of a slowly rotating diffuser disk placed before the collection optics of the photomultiplier tube. All togheter, the technique give us a true ensemble-averaged time correlation function over 7 decades of time. As an example of the application of the technique, the dynamics of micro-particles embedded in a solvent sensitive cross-linked polymer matrix, namely, an acrylamide gel is studied. This polymer network is known to swell or deswell by changing the solvent composition. In this way, the description of the arrested dynamics of the micro-particles, as well as the viscoelastic properties of the polymer network at different cage sizes is possible.

2284861

Probability mapping images in dynamic speckle PASSONI L.I.1, RABAL H.J.2, MESCHINO G1, TRIVI M.2 1 Laboratorio de Bioingeniería, Facultad de Ingeniería. Universidad Nacional de Mar del Plata, Juan B. Justo 4302. (7600) Mar del Plata, Argentina / 2Centro de Investigaciones Ópticas (CONICET La Plata-CIC), UID Optimo, Departamento de Ciencias Básicas, Facultad de Ingeniería. Universidad Nacional de la Plata, P.O. Box 3, 1897, Gonnet, La Plata, Argentina

Several descriptors have been proposed in the literature for the characterization of the dynamic speckle phenomenon. Some of them are heuristic and some are useful for the description of only some phenomena. The interpretation of the results in terms of the physical origins that produce the dynamics is solved for only a few cases. Doppler shifts and other time varying phenomena compete to give rise to a complex time behavior that is hard to assign to simple reasons. In this work we propose the use of a learning procedure based in eventually the use of one or more descriptors. By means of it and based on the use of dynamic speckle patterns obtained with well identified samples we construct a color image where up to three components can be recognized in the sample. The procedure is based in the calculation of the probability of every pixel to 291

belong to a certain class and constructing a component image proportional to the resulting value. This image is then used as one of the three colors RGB components of the final image. In the result, every pixel results classified and can be identified as showing the value of estimated probability of its belonging to each learned class. High brightness in one color means then a high probability that the point belongs to the corresponding class and conversely. We show some results to illustrate the use of the images.

2285711

Temporal and spatial vibration measurement by high speed optical interferometry GUTIERREZ-HERNANDEZ D.A.1, PEREZ-LOPEZ C.1, MENDOZA-SANTOYO F1, MIXTECO-SANCHEZ J.C.2 1 Centro de Investigaciones en Óptica A.C/ 2Unidad Profesional Interdisciplinaria de Ingenierías campus Guanajuato - Instituto Politécnico Nacional

Temporal and spatial analysis over a rectangular four sides-clamped plate is reported. A high speed optical interferometer system is used to record 4000 frames per second (fps) to obtain fringe patterns of interference. 25 of that fringe pattern are processed to get the phase out along the time and also to measure the profile of the plate at any time inside the recorded relation (12.5 images over the complete evolution). The resulted graphic is shown, the recovered phase of the plate is reported to graphic the complete evolution of the vibration applied to the plate and also it is demonstrated that the harmonic vibration signal applied to the plate is almost the same at the mechanical behaviour of the plate at 4000 fps.

OE 10 Optical Engineering 2285936

Speckle displacement in 3-d space and applications YAMAGUCHI I. Toyo Seiki, Gunma University

Speckle Displacement in 3-D Spaces and Applications Ichirou Yamaguchi Laser speckle patterns arise from interference of a great number of wavelets with mutually random phase relationships. They can be easily and distinctly observed in the coherent light diffusely reflected from rough surfaces. Their statistical properties are quantitatively described in terms of the correlation functions of intensity distributions of the patterns. If the surface roughness is larger than the wavelength and has a sufficiently fine structure, both the autocorrelation depicting speckle size distributions and the cross-correlation indicating speckle displacement and decorrelation due to displacement and deformation of rough surfaces are independent of fine surface structures. Hence they work as distinct natural surface markings which can be used for perfectly non contacting measurement of various surfaces including living objects. The critical issues in the measurement are the relationships between surface deformation and speckle displacement. Although analytical expressions for speckle displacement and decorrelation caused by homogeneous deformation have already been derived, they are only valid for initially plane surface of ideal roughness1). In the paper we present a computer code that can be applied to general initial surface and optical systems. We applied this code to evaluate accuracies expected for the laser speckle strain gauge and displacements sensors using digital speckle correlation2). Speckle displacement and decorrelation are closely related with changes of light phase that are detected in ESPI and digital holography. They also govern the fringe qualities and S/N to be observed in these methods. We can estimate possible errors arising in surface contouring and deformation measurement using these techniques under various conditions. 1) I. Yamaguchi: "Speckle displacement and decorrelation in the diffraction and image fields for small object deformation," Optica Acta, 28, 1359-1376 (1981). 2) I. Yamaguchi: ―Holography, speckle, and computers,‖ Opt. Lasers in Eng., 39, 411-429 (2003).

2284642

Interferometry-like image contour detection RODRIGUEZ-MORALES G. Universidad Autónoma de Nuevo León 292

A numerical interferometry-like experiment is done to enhance the contour detection in images with smoother intensity gradients than that of an edge. The experiment consists in the use the intensity information of the image as the phase of a sine function. This produces a sinusoidal pattern with the form of the contours according to the original intensity pattern. Application of this technique conforms, with the subsequent application of a known method for edge detection, a powerful tool to detect contours. The application of this technique is useful for variable density material as in a smoke plume or a spray.

2284796

Monte carlo method for evaluation of uncertainty in topometry by using in-plane electronic speckle pattern interferometry with divergent illumination MARTINEZ AMALIA1, PARRA-MICHEL JORGE2, CORDERO RAUL3 1 Centro de Investigaciones en Óptica A.C/ 2Escuela de Ingenierías, Universidad de La Salle Bajío /3Departamento de Física, Universidad de Santiago de Chile

Monte Carlo method for evaluation of uncertainty in topometry by using in-plane electronic speckle pattern interferometry with divergent illumination Amalia Martínez1, Jorge Parra-Michel1,2, Raul Cordero3 1Centro de Investigaciones en Óptica, A. C., México 2Escuela de Ingenierías, Universidad de La Salle Bajío, México 3Departamento de Física, Universidad de Santiago de Chile amalia@cio.mx, jpm103347@udelasalle.edu.mx, raul.cordero@usach.cl Abstract Electronic speckle pattern interferometry is a useful technique in the measurement of displacement fields and topography. Traditionally, arrangement with dual collimated illumination to topography measurement is used. In this case, the object analysis is limited to the size of optical collimating lens. In the case of large objects, an optical system with divergent illumination can be used. It is known that displacement fields and the optical phase are related by the sensitivity vector. At once, to compute the sensitivity vector, illumination sources position and superficial shape need to be considered. The last condition becomes an impediment to surface contouring. In a published work1, a simple iterative algorithm based on the Gauss-Seidel technique is presented to compute contouring measurement. In the present work, the uncertainty associated to the measurement of the topography is calculated by using the Monte Carlo method. 1. Jorge Parra-Michel, Amalia Martínez, Marcelino Anguiano-Morales, J. A. Rayas, ―Measuring object shape by using in-plane electronic speckle pattern interferometry with divergent illumination‖, Measurement Science Technology, Vol. 21, 2010, 045303 (8 pp). Key words: Topometry, ESPI, divergent illumination, dual illumination, uncertainty, Monte Carlo method.

2286186

Digital image correlation method: a versatile tool for engineering and art structures investigations KUJAWINSKA M.1, MALESA M.1, PIEKARCZUK A.2 TYMIńSKA-WIDMER L.3, MALOWANY K.1, TARGOWSKI P.4 1 Warsaw University of Technology, Institute of Micromechanics and Photonics, 02-525 Warsaw, 8 Sw. A. Boboli St., Poland/ 2Building Research Institute, 00-611 Warsaw, 1 Filtrowa St., Poland/ 3Institute for the Study, Restoration and Conservation of Cultural Heritage, Nicolaus Copernicus University, ul. Gagarina 7, 87-100 Toruń, Poland/ 4Institute of Physics, Nicolaus Copernicus University, ul. Grudziądzka 5, PL-87 100 Toruń, Poland

Optics is the enabling technology and it is applied in many applications of engineering, medicine, multimedia and conservation of cultural heritage. However most of these applications require close cooperation with the end user and often they enforce modification and enhancement of an optical tool. In the paper we will show how optical metrology, specifically the usage of digital image correlation method is implemented to two completely different tasks: performing pre-operating tests of low cost building structures subjected to loading conditions which simulate the natural load e.g. introduced by the weight of snow and monitoring of canvas paintings for tracking humidity-induced deformations, which may appear in museum (or other location of a piece of art e.g. church). In the first case the numerical simulations carried out on the FEM model have been consequently verified by the measurements performed with the 3D Digital Image Correlation method (DIC) 293

and as a result, the detailed, calibrated FEM model has been developed. The measurements were performed on a full scale model of the hangar‘s fragment. The shape and all components of the displacement vector were captured during the whole loading process in the 2m x 2m area of interest, using the DIC sensor. The methodology developed allows to increase the safety of exploitation of such structures despite of the lack of their constant health monitoring. In the second example a model painting on canvas served as a test object. In order to create discontinuities in its structure, cuts and gaps of various size were made in the support and ground layer. Then they were repaired and filled in with traditional techniques as well as with an alternative method using fibrous pulp mixed with different adhesives. The sample was subjected to environmental stress caused by rapid changes of relative humidity in a custom designed glass climate chamber. During the experiment DIC data were collected together with the relative humidity (RH) and temperature values. After processing the data, the displacement maps were correlated with humidity records and combined into video animations for convenient inspection. The presented examples are the background for a general discussion on different measurement scenarios with application of DIC method, as well as the required enhancements and modifications which had been introduced. Coresponding author: m.kujawinska@mchtr.pw.edu.pl

2286189

Unified theory of phase unwrapping approaches in multi-wavelength interferometry FALAGGIS K, P. TOWERS D, E. TOWERS C. School of Mechanical Engineering, University of Leeds

Multi–wavelength interferometry (MWI) has a long tradition with a number of applications in the field of optical interferometry. In MWI phase unwrapping procedures are usually based on beat wavelength approaches, Chinese Remainder Theorem (CRT) techniques, or the method of Excess Fractions (EF) [1,2]. Each of these unwrapping approaches has its distinct advantage making it suitable for a given application. Beat wavelength and CRT based approaches offer a direct calculation of integer fringe order, however, the unambiguous measurement range (UMR) is limited by the available measurement wavelengths. On the contrary, EF offers many alternative sets of wavelengths to achieve a large UMR with high reliability, however, the calculation of the integer fringe order involves a high number of computational steps. In this work, a unified theory of beat wavelengths, EF and CRT approaches is reported. It is shown the calculation of the integer fringe order embodies a low computational effort, which hitherto is only possible for CRT and beat wavelength approaches, whilst offering flexibility in choosing the measurement wavelengths for a given UMR, which is only the case for EF. Because, this model can be used in a predictive way to determine the UMR and measurement reliability it is possible to define optimization criteria that are based on parameters which are dependent on the choice of the measurement wavelengths. [1] Burke, J, Bothe, T, Osten, W and Hess, CF 2002, ‗Reverse engineering by fringe projection‘, Proc. SPIE, 4778, 312. [2] Falaggis, K, Towers, DP, and Towers, CE, 2010 ‗Theoretical analysis and optimisation of the method of excess fractions for longrange metrology‘, Proc. SPIE, 7790, 779009, DOI:10.1117/12.861177

BMO 4 Bio- medical optics 2284782

Micro-joule, pico-second range, YB3+-doped fibre laser for medical applications in acupuncture ALVAREZ-CHAVEZ J.A.1, RIVERA-MANRIQUE S.I.1, JAQUES S.L.2 1 CIITEC-IPN/ 2OREGON HEALTH STATE UNIVERSITY

Abstract: The work described here is based on the optic