Cooperative promotion of plasma instabilities for emission of terahertz radiation in an asymmetric dual-grating-gate graphene-channel FET

Akira Satou, Yuki Koseki, Takayuki Watanabe, Vyacheslav V. Popov, Victor Ryzhii, Taiichi Otsuji

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

We study instability of plasmons in a dual-grating-gate graphene field-effect transistor induced by dc current injection using self-consistent simulations with the Boltzmann equation. With ultimately high-quality graphene where the electron scattering is only limited by acoustic phonons, it is demonstrated that a total growth rate of the plasmon instability, with the terahertz/mid-infrared range of the frequency, can exceed 4 X 1012 s-1 at room temperature, which is an order of magnitude larger than in two-dimensional electron gases based on usual semiconductors. We show that the giant total growth rate originates from cooperative promotion of the so-called Dyakonov-Shur and Ryzhii-Satou-Shur instabilities.

本文言語English
ホスト出版物のタイトルTerahertz Physics, Devices, and Systems X
ホスト出版物のサブタイトルAdvanced Applications in Industry and Defense
編集者Mehdi F. Anwar, Thomas W. Crowe, Tariq Manzur
出版社SPIE
ISBN(電子版)9781510600973
DOI
出版ステータスPublished - 2016
イベントTerahertz Physics, Devices, and Systems X: Advanced Applications in Industry and Defense - Baltimore, United States
継続期間: 2016 4 172016 4 19

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
9856
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

Other

OtherTerahertz Physics, Devices, and Systems X: Advanced Applications in Industry and Defense
国/地域United States
CityBaltimore
Period16/4/1716/4/19

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

フィンガープリント

「Cooperative promotion of plasma instabilities for emission of terahertz radiation in an asymmetric dual-grating-gate graphene-channel FET」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル