Emission of Terahertz Radiation from Two-Dimensional Electron Systems in Semiconductor Nano- and Hetero-Structures

被引：0

作者：

Taiichi Otsuji

Takayuki Watanabe

Amine El Moutaouakil

Hiromi Karasawa

Tsuneyoshi Komori

Akira Satou

Tetsuya Suemitsu

Maki Suemitsu

Eiichi Sano

Wojciech Knap

Victor Ryzhii

机构：

[1] Tohoku University,Research Inst. of Electrical Communication

[2] Hokkaido University,Research Center for Integrated Quantum Electronics

[3] University of Montpellier & Centre National de la Recherche Scientifique,Computational Nano

[4] University of Aizu,Electronics Laboratory

来源：

Journal of Infrared, Millimeter, and Terahertz Waves | 2011年 / 32卷

关键词：

Terahertz emission; Two-dimensional electrons; Plasmons; Graphene; Heterostructures;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper 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 and InAlAs/InGaAs/InP material systems. The device structure is based on a high-electron mobility transistor and incorporates the author’s original interdigitated dual-grating gates. Second topic focuses on graphene, a monolayer carbon-atomic honeycomb lattice crystal, exhibiting unique carrier transport and optical properties owing to 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.

引用

页码：629 / 645

页数：16

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