Open AccessCherenkov phase matched THz-wave generation with surfing configuration for bulk Lithium Nobate crystal
Author(s) -
Koji Suizu,
Toshihiro Tsutsui,
Takayuki Sakamoto,
Tomoaki Akiba,
Kodo Kawase
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.007102
Subject(s) - terahertz radiation , optics , lithium niobate , cherenkov radiation , crystal (programming language) , wavelength , phase (matter) , materials science , optoelectronics , physics , detector , quantum mechanics , computer science , programming language
We demonstrated a Cherenkov phase matched THz-wave generation with surfing configuration for bulk lithium niobate crystal. THz-wave output was enhanced about 50 times by suppressing phase mismatching for THz-wave propagation direction. The suppression was achieved by combining two pumping waves with dual wavelength with finite angle, and THz-frequency was controllable by changing the angle within 2.5 degrees range. Higher frequency THz-wave generation at around 4.0 THz was successfully obtained by the method.