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Optical properties of transiently-excited semiconductor hyperbolic metamaterials

Journal Article · · Optical Materials Express
DOI:https://doi.org/10.1364/OME.5.002385· OSTI ID:1236216

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 (<1%) for both TE and TM polarizations over a wide range of incidence angles. In contrast, in the photopumped state, the reflectance for both frequencies and polarizations is very low (<1%) for a similar range of angles. Interestingly, this system can function as an all-optical reflection switch on ultrafast timescales. Furthermore, for TM incidence and close to the epsilon-near-zero point of the longitudinal permittivity, directional perfect absorption on ultrafast timescales may also be achieved. Lastly, we discuss the onset of negative refraction in the photopumped state.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1236216
Alternate ID(s):
OSTI ID: 1333801
OSTI ID: 1530971
Report Number(s):
SAND--2015-8354J; 607085
Journal Information:
Optical Materials Express, Journal Name: Optical Materials Express Journal Issue: 11 Vol. 5; ISSN 2159-3930
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

Tunable terahertz structure based on graphene hyperbolic metamaterials journal June 2019
Surface plasmons at the interface of metamaterial and topological insulator journal June 2019
Semiconductor Hyperbolic Metamaterials at the Quantum Limit journal November 2018
Switching Purcell effect with nonlinear epsilon-near-zero media journal July 2018
Tunable terahertz amplification based on photoexcited active graphene hyperbolic metamaterials [Invited] journal January 2018
All-angle optical switch based on the zero reflection effect of graphene–dielectric hyperbolic metamaterials journal January 2019
Switching Purcell effect with nonlinear epsilon-near-zero media text January 2018
Tunable Terahertz Amplification Based on Photoexcited Active Graphene Hyperbolic Metamaterials text January 2018

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