摘要
We experimentally demonstrate a high power nanosecond pulsed terahertz(THz)-wave parametric oscillator(TPO)by using a wide pump beam.A surface emitted cavity configuration is employed to reduce the THz absorption in MgO:LiNbO_(3) crystal.The THz wave can be tuned from 1 THz to 3 THz.A maximum THz output energy of 438 nJ/pulse is achieved at 1.56 Hz using a 4.5-mm-diameter pump beam with a pulse energy of 226 mJ pump energy with the repetition of 10 Hz,corresponding to the energy conversion efficiency of 1.94×10^(-6).
作者
XU De-Gang
ZHANG Hao
JIANG Hao
WANG Yu-Ye
LIU Chang-Ming
YU Hong
LI Zhong-Yang
SHI Wei
YAO Jian-Quan
徐德刚;张昊;蒋浩;王与烨;刘长明;于红;李忠洋;史伟;姚建铨(Institute of Laser and Optoelectronics,College of Precision Instrument and Optoelectronics Engineering,Tianjin University,Tianjin 300072;Key Laboratory of Optoelectronics Information Science and Technology(Ministry of Education),Tianjin University,Tianjin 300072;North China University of Water Resources and Electric Power,Zhenzhou 450011)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 61107086,61172010 and 61101058,Science and Technology Committee of TianJin(No 11JCYBJC01100)
the National High Technology Research and Development Program of China(No 2011AA010205)
the Open-Fund of the Key Laboratory of Opto-electronic Information Technology(Ministry of Education)at Tianjin University。
