Title :
Ultrahigh sensitive plasmonic terahertz detection using asymmetric dual-grating gate HEMT structures
Author :
Watanabe, Takayuki ; Tombet, Stephane Boubanba ; Tanimoto, Yudai ; Fukushima, Tetsuya ; Otsuji, Taiichi ; Fateev, Denis ; Popov, Viacheslav ; Coquillat, Dominique ; Knap, Wojciech ; Meziani, Yahya ; Wang, Yuye ; Minamide, Hiroaki ; Ito, Hiromasa
Author_Institution :
RIEC Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
We report on ultrahigh sensitive broadband terahertz detection using asymmetric double-grating-gate high-electron-mobility transistors, demonstrating a record responsivity of 2.2 kV/W at 1 THz with a superior low noise equivalent power of 15 pW/√Hz.
Keywords :
high electron mobility transistors; plasmonics; submillimetre wave transistors; terahertz wave detectors; asymmetric double-grating-gate high-electron-mobility transistors; asymmetric dual-grating gate HEMT structures; frequency 1 THz; ultrahigh sensitive broadband terahertz detection; ultrahigh sensitive plasmonic terahertz detection; Broadband communication; Detectors; Gratings; HEMTs; Logic gates; Noise; Plasmons;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
