Broadband Tunable, Polarization-Selective and ... - ACS Publications

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Apr 22, 2016 - DOI: 10.1021/acs.nanolett.6b00827. Nano Lett. 2016, 16, 3278−3284. This is an open access article published under an ACS AuthorChoice ...
This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.

Letter pubs.acs.org/NanoLett

Broadband Tunable, Polarization-Selective and Directional Emission of (6,5) Carbon Nanotubes Coupled to Plasmonic Crystals Yuriy Zakharko,*,† Arko Graf,†,‡ Stefan P. Schießl,† Bernd Haḧ nlein,§ Jörg Pezoldt,§ Malte C. Gather,‡ and Jana Zaumseil*,† †

Institute for Physical Chemistry, Universität Heidelberg, D-69120 Heidelberg, Germany SUPA, School of Physics and Astronomy, University of St. Andrews, St. Andrews KY16 9SS, United Kingdom § Institut für Mikro- und Nanotechnologie, Technische Universität Ilmenau, 98693 Ilmenau, Germany ‡

S Supporting Information *

ABSTRACT: We demonstrate broadband tunability of light emission from dense (6,5) single-walled carbon nanotube thin films via efficient coupling to periodic arrays of gold nanodisks that support surface lattice resonances (SLRs). We thus eliminate the need to select single-walled carbon nanotubes (SWNTs) with different chiralities to obtain narrow linewidth emission at specific near-infrared wavelengths. Emission from these hybrid films is spectrally narrow (20−40 meV) yet broadly tunable (∼1000−1500 nm) and highly directional (divergence