Optical properties of transiently-excited semiconductor hyperbolic metamaterials Salvatore Campione,1,2,* Ting S. Luk,1,2 Sheng Liu,1,2 and Michael B. Sinclair2,3 1
Center for Integrated Nanotechnologies (CINT), Sandia National Laboratories, P.O. Box 5800, Albuquerque, NM 87185, USA 2 Sandia National Laboratories, P.O. Box 5800, Albuquerque, NM 87185, USA 3
[email protected] *
[email protected]
Abstract: Ultrafast optical excitation of photocarriers has the potential to transform undoped semiconductor superlattices into semiconductor hyperbolic metamaterials (SHMs). In this paper, we investigate the optical properties associated with such ultrafast topological transitions. We first show reflectance, transmittance, and absorption under TE and TM plane wave incidence. In the unpumped state, the superlattice exhibits a frequency region with high reflectance (>80%) and a region with low reflectance (
