Tunable Fully Absorbing Metasurfaces for Efficient THz Detection

Lucy L. Hale, Polina P. Vabischevich, Tom Siday, Charles Thomas Harris, John L. Reno, Igal Brener, Oleg Mitrofanov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Terahertz photoconductive antennas with a nanostructured active region have been actively investigated recently with a goal to achieve high efficiency THz detectors and emitters. Here we provide a novel design of perfectly-absorbing photoconductive region without plasmonic elements using a metasurface, and provide a systematic method by which the metasurface can be designed to work optimally for varying optical gate frequencies across the GaAs band-gap. This paves the way to using metasurface devices for THz detection and other applications in a wide range of laser systems operating at different wavelengths or with different photoconductive materials.

Original languageEnglish
Title of host publication2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
PublisherIEEE Computer Society Press
Pages252-253
Number of pages2
ISBN (Electronic)9781728166209
DOIs
Publication statusPublished - 8 Nov 2020
Event45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020 - Virtual, Buffalo, United States
Duration: 8 Nov 202013 Nov 2020

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume2020-November
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
Country/TerritoryUnited States
CityVirtual, Buffalo
Period8/11/2013/11/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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