Paper Abstract and Keywords |
Presentation |
2013-12-17 14:10
Ultrahigh Sensitive and Frequency-Tunable Terahertz Detection by Asymmetric Dual-Grating-Gate HEMTs Tetsuya Kawasaki, Shinya Hatakeyama, Yuki Kurita (Tohoku Univ.), Guillaume Ducournau (IEMN), Dominique Coquillat (Univ. Montpellier 2 & CNRS), Kengo Kobayashi, Akira Satou (Tohoku Univ.), Yahya M. Meziani (Univ. Salamanca), Vyacheslav. V. Popov (Kotelnikov Inst. Radio Eng. Electron), Wojciech Knap (Univ. Montpellier 2 & CNRS), Tetsuya Suemitsu, Taiichi Otsuji (Tohoku Univ.) ED2013-107 Link to ES Tech. Rep. Archives: ED2013-107 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We report on ultrahigh sensitive and frequency-tunable terahertz (THz) detectors by our original asymmetric dual-grating gate high electron mobility transistors (A-DGG HEMTs) based on hydrodynamic nonlinearities of two-dimensional (2D) plasmons. We obtained the record-breaking responsivities exceeding 20 kV/W at 200 GHz and 292 GHz at room temperature by contributing nonlinear rectification response and excellent coupling efficiency provided by the structure. In addition, we successfully observed the resonant-type behavior at a cryogenic temperature. This indicates the potentiality of frequency-tunable ultrahigh-sensitive THz detection. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Plasmon / Terahertz / Detection / 2DEG / HEMT / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 357, ED2013-107, pp. 97-100, Dec. 2013. |
Paper # |
ED2013-107 |
Date of Issue |
2013-12-09 (ED) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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ED2013-107 Link to ES Tech. Rep. Archives: ED2013-107 |
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