Tunable plasma wave resonant detection of optical beating in high electron mobility transistor

Details Tunable plasma wave resonant detection of optical beating in high electron mobility transistor Tunable plasma wave resonant detection of optical beating in high electron mobility transistor

2006-10-11

arxiv.org/abs/physics/0610078v1

Physics

Optics

Applied Physics Letters to be published (2006) --

Scientific paper

10.1063/1.2388142

We report on tunable terahertz resonant detection of two 1.55 µm cw-lasers beating by plasma waves in AlGaAs/InGaAs/InP high-electron-mobility transistor. We show that the fundamental plasma resonant frequency and its odd harmonics can be tuned with the applied gate-voltage in the range 75-490 GHz. The observed frequency dependence on gate-bias is found to be in good agreement with the theoretical plasma waves dispersion law.

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