Paper
14 March 2015 Room-temperature zero-bias plasmonic THz detection by asymmetric dual-grating-gate HEMT
T. Watanabe, T. Kawasaki, A. Satou, S. Boubanga Tombet, T. Suemitsu, G. Ducournau, D. Coquillat, W. Knap, H. Minamide, H. Ito, Vyacheslav V. Popov, Yahya M. Meziani, T. Otsuji
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Abstract
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
T. Watanabe, T. Kawasaki, A. Satou, S. Boubanga Tombet, T. Suemitsu, G. Ducournau, D. Coquillat, W. Knap, H. Minamide, H. Ito, Vyacheslav V. Popov, Yahya M. Meziani, and T. Otsuji "Room-temperature zero-bias plasmonic THz detection by asymmetric dual-grating-gate HEMT", Proc. SPIE 9362, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VIII, 93620F (14 March 2015); https://doi.org/10.1117/12.2079184
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KEYWORDS
Plasmons

Terahertz radiation

Field effect transistors

Plasmonics

Terahertz detection

Sensors

Phase velocity

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