摘要
High-power nanosecond pulsed THz-wave radiation is achieved via a surface-emitted THz-wave parametric oscillator.One MgO:LiNbO3 crystal with large volume is used as the gain medium.THz-wave radiation from 1.084 THz to 2.654 THz is obtained.The maximum THz-wave average power is 5.8W at 1.93 THz when the pump energy is 84 mJ,corresponding to a energy conversion efficiency of 6.9×10^(−6).The polarization characteristics of THz wave are analyzed.During the experiments the radiations of the first-order and the second-order Stokes wave are observed.
作者
LI Zhong-Yang
YAO Jian-Quan
XU De-Gang
BING Pi-Bin
ZHONG Kai
李忠洋;姚建铨;徐德刚;邴丕彬;钟凯(North China University of Water Resources and Electric Power,Zhengzhou 450011;College of Precision Instrument and Opto-electronics Engineering,Institute of Laser and Opto-electronics,Tianjin University,Tianjin 300072)
基金
by the National Basic Research Program of China under Grant No 2007CB310403
the National Natural Science Foundation of China under Grant No 60801017.
