Title :
Active gas-sensing with high-sweeping-speed optically synchronized dual-channel THz signals and a superconducting tunneling mixer
Author :
Oh, Kyoung-Hwan ; Shimizu, Nafumi ; Kohjiro, Satoshi ; Kikuchi, Ken´ichi ; Wakatsuki, Atsushi ; Kukutsu, Naoya ; Kado, Yuichi
Author_Institution :
NTT Microsyst. Integration Labs., Nippon Telegraph & Telephone Corp., Atsugi, Japan
Abstract :
We developed an active gas-sensing system with a superconductor-insulator-superconductor (SIS) mixer and a generator for high-sweeping-speed optically synchronized dual-channel terahertz (THz) signals (GHOST). The developed active gas-sensing system covers a frequency range from 200 to 500 GHz at once and can sweep that frequency range at a speed of 375 GHz/s. With this system, active gas-sensing was carried out with N2O gas.
Keywords :
gas sensors; nitrogen compounds; submillimetre wave measurement; superconductive tunnelling; superconductor-insulator-superconductor mixers; terahertz wave devices; terahertz wave generation; N2O; active gas sensing system; frequency 200 GHz to 500 GHz; high-sweeping-speed terahertz signal; optically synchronized dual-channel THz signal; superconducting tunneling mixer; superconductor-insulator-superconductor mixer; Frequency synchronization; Gas lasers; Integrated optics; Optical coupling; Optical filters; Optical receivers; Optical sensors; Optical transmitters; Signal generators; Tunneling;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324727
