Efficiency enhancement of emission of terahertz radiation by optical excitation from dual grating gate HEMT

Yahya Moubarak Meziani; Takuya Nishimura; H. Handa; H. Tsuda; T. Suemitsu; Wojtek Knap; Taiichi Otsuji; Eiichi Sano; Grennady M. Tsymbalov; Vyacheslav V. Popov

doi:10.1117/1.3266497

1 October 2009 Efficiency enhancement of emission of terahertz radiation by optical excitation from dual grating gate HEMT

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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Journal of Nanophotonics, Vol. 3, Issue 1, 031980 (October 2009). https://doi.org/10.1117/1.3266497

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.

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Yahya Moubarak Meziani, Takuya Nishimura, H. Handa, H. Tsuda, T. Suemitsu, Wojtek Knap, Taiichi Otsuji, Eiichi Sano, Grennady M. Tsymbalov, and Vyacheslav V. Popov "Efficiency enhancement of emission of terahertz radiation by optical excitation from dual grating gate HEMT," Journal of Nanophotonics 3(1), 031980 (1 October 2009). https://doi.org/10.1117/1.3266497

Published: 1 October 2009

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