Title :
Bandwidth dependent THz generation at quasi-phase matched crystal by difference frequency generation
Author :
Yu, Nan Ei ; Kang, Chul ; Lee, Yeung Lak ; Takekawa, Shunji ; Kitamura, Kenji
Author_Institution :
Adv. Photonics Res. Inst., GIST, Gwangju, South Korea
Abstract :
Tunable narrow band terahertz (THz) pulses were generated in periodically poled lithium niobate and lithium tantalite at 0.6 and 1.4 THz with bandwidth of 20 GHz. The generation THz frequency and intensity were strongly depending on temperature of crystal and pump laser spectral bandwidth.
Keywords :
lithium compounds; microwave photonics; optical frequency conversion; optical materials; optical phase matching; terahertz wave spectra; LiNbO3; LiTaO3; bandwidth 20 GHz; bandwidth dependent terahertz generation; crystal temperature; difference frequency generation; frequency 0.6 THz; frequency 1.4 THz; periodically poled lithium niobate; periodically poled lithium tantalite; pump laser spectral bandwidth; quasiphase matched crystal; terahertz pulse generation; tunable narrow band terahertz pulses; Bandwidth; Frequency; Nonlinear optics; Optical pulse generation; Optical pumping; Optical refraction; Optical scattering; Optical variables control; Phonons; Ultrafast optics;
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.2009.5325621
