Emission and detection of terahertz radiation using two-dimensional electrons in III-V semiconductors and graphene

Taiichi Otsuji, Takayuki Watanabe, Stephane A. Boubanga Tombet, Akira Satou, Wojciech M. Knap, Vyacheslav V. Popov, Maxim Ryzhii, Victor Ryzhii

Research output: Contribution to journalArticlepeer-review

80 Citations (Scopus)

Abstract

Recent advances in emission and detection of terahertz radiation using two-dimensional (2D) electron systems in III-V semiconductors and graphene are described. First the 2D plasmon resonance is presented to demonstrate intense broadband terahertz emission and detection from InGaP/InGaAs/GaAs and InAlAs/InGaAs/InP material systems. The device structure is based on a high-electron mobility transistor and incorporates the author's original asymmetrically interdigitated dual-grating gates. Second topic focuses on graphene, a monolayer carbon-atomic honeycomb lattice crystal, exhibiting peculiar carrier transport and optical properties owing to massless and gapless energy spectrum. Theoretical and experimental studies toward the creation of graphene terahertz injection lasers are described.

Original languageEnglish
Article number6423871
Pages (from-to)63-71
Number of pages9
JournalIEEE Transactions on Terahertz Science and Technology
Volume3
Issue number1
DOIs
Publication statusPublished - 2013

Keywords

  • Compound semiconductors
  • detectors
  • graphene
  • lasers
  • plasmons
  • terahertz (THz)

ASJC Scopus subject areas

  • Radiation
  • Electrical and Electronic Engineering

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