Title :
Efficient generation and electro-optic sampling detection of THz radiation using Cherenkov phase matching scheme
Author :
Horita, Kazuki ; Kinoshita, Tetsuya ; Que, Christopher T. ; Estacio, Elmer ; Bakunov, Michael I. ; Suizu, Koji ; Kawase, Kodo ; Yamamoto, Kohji ; Tani, Masahiko
Author_Institution :
Res. Center for Dev. of Far-Infrared Region, Univ. of Fukui, Fukui, Japan
Abstract :
An efficient terahertz (THz) wave generation via Cherenkov-type phase matching has been demonstrated using a thin lithium niobate (LiNbO3, LN) crystal coupled to a Si prism structure (Si-LN). This design relies on wave-guiding effects for the optical pump and decreased THz absorption in the LN crystal to achieve intense THz wave emission. In addition, an efficient THz electro-optic (EO) sampling has been demonstrated using the same Si-LN structure and Cherenkov phase matching scheme. The Cherenkov phase matching has an advantage over the collinear phase matching since it can be achieved with any pump or probe wavelength.
Keywords :
Cherenkov radiation; electro-optical devices; electro-optical effects; optical neural nets; optical phase matching; optical pumping; Cherenkov phase matching scheme; LiNbO3; collinear phase matching; electrooptic sampling detection; optical pump; prism structure; terahertz wave generation; waveguiding effects; Crystals; Laser beams; Laser excitation; Nonlinear optics; Optical frequency conversion; Probes;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6104766
