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Epsilon Near Zero Mode for active THz devices

Authors
Publisher
META12
Publication Date
Source
Legacy
Keywords
  • Physics
  • Nanophotonics
  • Nanophotonics
  • Terahertz
  • Surface Wave
Disciplines
  • Physics

Abstract

We show that electron-THz radiation can be enhanced using an extremy confined mode that we call epsilon near zero (ENZ) mode. We demonstrate a 45% absorption of a normally incident 8.74 THz wave in the volume of a single quantum well with thickness 22 nm. We also demonstrate electrical modulation of this absorption.

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