%0 Journal Article
%T Emission of Terahertz Radiation from Two-Dimensional Electron Systems in Semiconductor Nano- and Hetero-Structures
%+ Laboratoire Charles Coulomb (L2C)
%A Otsuji, Taiichi
%A Watanabe, Takayuki
%A El Moutaouakil, Amine
%A Karasawa, Hiromi
%A Komori, Tsuneyoshi
%A Satou, Akira
%A Suemitsu, Tetsuya
%A Suemitsu, Maki
%A Sano, Eiichi
%A Knap, Wojciech
%A Ryzhii, Victor
%< avec comité de lecture
%Z L2C:11-410
%@ 1866-6892
%J Journal of Infrared, Millimeter and Terahertz Waves
%I Springer Verlag
%V 32
%N 5
%P 629-645
%8 2011-05
%D 2011
%R 10.1007/s10762-010-9714-0
%K Terahertz emission
%K Two-dimensional electrons
%K Plasmons
%K Graphene
%K Heterostructures
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles
%X 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
%G English
%L hal-00814199
%U https://hal.science/hal-00814199
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021