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Room-Temperature, Zero-Bias Plasmonic THz Detection by Asymmetric Dual-Grating-Gate HEMT
Acte de colloque

Room-Temperature, Zero-Bias Plasmonic THz Detection by Asymmetric Dual-Grating-Gate HEMT

Takayuki Watanabe, Tetsuya Kawasaki, Akira Satou, Stéphane Boubanga-Tombet, Tetsuya Suemitsu, Guillaume Ducournau, Dominique Coquillat, Wojciech Knap, Hiroaki Minamide, Hiromasa Ito, …
Proceedings of Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VIII, Vol.9362
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VIII (San Francisco, United States, 10/02/2015–12/02/2015)
2015
DOI: https://doi.org/10.1117/12.2079184

Résumé

Asymmetric dual-grating-gate HEMT THz detection plasmon
We study theoretically and experimentally the plasmonic THz detection by the asymmetric dual-grating-gate HEMT at room temperature without source-to-drain bias. We derive the analytical expressions of photocurrents due to the plasmonic drag and ratchet effects, and we discuss about their frequency dependences. We also compare the theory to the experimentally obtained frequency dependence. It is demonstrated that they agree qualitatively well.

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