TY - JOUR
T1 - Spectral narrowing of terahertz emission from super-grating dual-gate plasmon-resonant high-electron mobility transistors
AU - El Moutaouakil, A.
AU - Watanabe, T.
AU - Haibo, C.
AU - Komori, T.
AU - Nishimura, T.
AU - Suemitsu, T.
AU - Otsuji, T.
PY - 2009
Y1 - 2009
N2 - Coherent terahertz emission from an original InGaP/InGaAs/GaAs plasmon-resonant high-electron-mobility transistor, having a super-grating dual-gate structure, is investigated. We report total emission from multi-mode of plasmons: Thermally excited incoherent modes and instability-driven coherent modes, using the Fourier Transform Infrared (FTIR) spectroscopic measurement. We discriminate the coherent emission of ultrafast instability-driven plasmon self-oscillation from incoherent hot plasmons using the Electro-Optic Sampling (EOS) method. The resultant emission shows a clear optimal plasmon-resonant mode with sharp peak at 3.2 THz for an optimal bias condition of Vds 2V. It indicates the spectral narrowing effect on the super-grating-gate structure.
AB - Coherent terahertz emission from an original InGaP/InGaAs/GaAs plasmon-resonant high-electron-mobility transistor, having a super-grating dual-gate structure, is investigated. We report total emission from multi-mode of plasmons: Thermally excited incoherent modes and instability-driven coherent modes, using the Fourier Transform Infrared (FTIR) spectroscopic measurement. We discriminate the coherent emission of ultrafast instability-driven plasmon self-oscillation from incoherent hot plasmons using the Electro-Optic Sampling (EOS) method. The resultant emission shows a clear optimal plasmon-resonant mode with sharp peak at 3.2 THz for an optimal bias condition of Vds 2V. It indicates the spectral narrowing effect on the super-grating-gate structure.
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U2 - 10.1088/1742-6596/193/1/012068
DO - 10.1088/1742-6596/193/1/012068
M3 - Article
AN - SCOPUS:74049143437
SN - 1742-6588
VL - 193
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
M1 - 012068
ER -