Title :
A wide range THz pulses generation in ZnTe crystals
Author :
Ku, S.A. ; Tu, C. -M ; Luo, C.W. ; Wu, K.H. ; Yabushita, A. ; Chi, C.C. ; Kobayashi, T.
Author_Institution :
Dept. of Electrophys., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The THz generation in ZnTe crystals by widely varying pumping fluences is reported. Some abnormal nonlinear effects were observed including the evolution of THz spectra and the phase shift of temporal waveforms. Moreover, the THz efficiency can enhance again at high pumping fluence due to the saturation of free carrier.
Keywords :
II-VI semiconductors; carrier lifetime; electro-optical effects; refractive index; spectral line shift; tellurium compounds; terahertz waves; zinc compounds; THz pulse generation; THz spectral evolution; ZnTe; abnormal nonlinear effects; free carrier saturation; phase shift; pumping fluences; temporal waveforms; Integrated optics; Optical imaging; Optical pumping; Optical refraction; Optical saturation; Optical variables control;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380362
