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Journal of Nanophotonics

Efficiency enhancement of emission of terahertz radiation by optical excitation from dual grating gate HEMT
Author(s): Yahya Moubarak Meziani; Takuya Nishimura; H. Handa; H. Tsuda; T. Suemitsu; Wojtek Knap; Taiichi Otsuji; Eiichi Sano; Grennady M. Tsymbalov; Vyacheslav V. Popov
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Paper Abstract

We investigated the emission of terahertz radiation from a doubly interdigitated grating gates high electron mobility transistor. The experiment was performed using Fourier spectrometer system coupled with high sensitive 4 K Silicon bolometer under the vacuum. The observed emission was explained as due to the excitation of the plasma waves by means of hot 2D plasmons. We also investigated the optical stimulation of the plasma waves by subjecting the device to a CW 1.5 μm laser beam. Dependence of the emission on the gate bias (i.e. on electron density) was observed and interpreted as due to the self oscillation of the plasma waves.

Paper Details

Date Published: 1 October 2009
PDF: 11 pages
J. Nanophoton. 3(1) 031980 doi: 10.1117/1.3266497
Published in: Journal of Nanophotonics Volume 3, Issue 1
Show Author Affiliations
Yahya Moubarak Meziani, Univ. de Salamanca (Spain)
Takuya Nishimura, Tohoku Univ. (Japan)
H. Handa, Tohoku Univ. (Japan)
H. Tsuda, Tohoku Univ. (Japan)
T. Suemitsu, Tohoku Univ. (Japan)
Wojtek Knap, Univ. Montpellier 2 (France)
Taiichi Otsuji, Tohoku Univ. (Japan)
Eiichi Sano, Hokkaido Univ. (Japan)
Grennady M. Tsymbalov, Institute of Photonics and Electronics of the ASCR, v.v.i. (Russian Federation)
Vyacheslav V. Popov, Institute of Radio Engineering and Electronics (Russian Federation)

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