Title :
Detection of THz radiation by using GaAs in Cherenkov-phase-matched electro-optic sampling
Author :
Ozawa, Seiichi ; Nagase, Tomohiro ; Tsuzuki, S. ; Takeshima, D. ; Furuya, Tadasuke ; Nishizawa, Shinichi ; Kurihara, Keiichirou ; Kuwashima, F. ; de los Santos, R. ; Somintac, A. ; Estacio, Elmer ; Yamamoto, Koji ; Bakunov, M. ; Tani, Motoaki
Author_Institution :
Univ. of Fukui, Fukui, Japan
Abstract :
We propose and demonstrate electro-optic (EO) sampling of terahertz (THz) radiation by using GaAs in the Cherenkov phase-matching scheme. This technique can be implemented without Si-prism coupling due to a small difference between optical group and THz phase refractive indices of GaAs and its low THz absorption.
Keywords :
III-V semiconductors; electro-optical devices; gallium arsenide; refractive index; terahertz wave detectors; terahertz wave spectra; Cherenkov-phase-matched electro-optic sampling; GaAs; THz absorption; THz phase refractive indices; THz radiation detection; optical group; terahertz radiation; Crystals; Electrooptical waveguides; Gallium arsenide; Laser beams; Optical pulses; Optical pumping; Ultrafast optics;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665674
