Systèmes électroniques bidimensionnels dans des nano-hétérostructures de semi-conducteurs comme sources de rayonnement térahertz

Taiichi Otsuji, Hiromi Karasawa, Takayuki Watanabe, Tetsuya Suemitsu, Maki Suemitsu, Eiichi Sano, Wojciech Knap, Victor Ryzhii

研究成果: Short survey査読

8 被引用数 (Scopus)

抄録

This article reviews recent advances in emission of terahertz radiation from two-dimensional (2D) electron systems in semiconductor nano-heterostructures. 2D plasmon resonance is first presented to demonstrate intense broadband terahertz emission from InGaP/InGaAs/GaAs material systems. The device structure is based on a high-electron mobility transistor and incorporates the author's original interdigitated dual-grating gates. The second topic focuses on graphene, a monolayer carbon-atomic honeycomb lattice crystal, exhibiting unique carrier transport and optical properties owing to the massless and gapless energy spectrum. Coherent stimulated terahertz emission from femtosecond infrared-laser pumped epitaxial graphene is experimentally observed, reflecting the occurrence of negative dynamic conductivity and population inversion.

寄稿の翻訳タイトルEmission of terahertz radiation from two-dimensional electron systems in semiconductor nano-heterostructures
本文言語French
ページ(範囲)421-432
ページ数12
ジャーナルComptes Rendus Physique
11
7-8
DOI
出版ステータスPublished - 2010 8

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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