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硅棱镜耦合输出THz波参量振荡器的实验研究
引用本文:李忠洋,姚建铨,徐德刚,邴丕彬,钟凯.硅棱镜耦合输出THz波参量振荡器的实验研究[J].光电子.激光,2012(3):425-428.
作者姓名:李忠洋  姚建铨  徐德刚  邴丕彬  钟凯
作者单位:天津大学精密仪器与光电子工程学院激光与光电子研究所;华北水利水电学院电力学院;天津大学精密仪器与光电子工程学院激光与光电子研究所;天津大学精密仪器与光电子工程学院激光与光电子研究所;华北水利水电学院电力学院;天津大学精密仪器与光电子工程学院激光与光电子研究所
基金项目:国家“973”计划(2007CB310403)资助项目
摘    要:利用一块MgO:LiNbO3晶体,采用Si棱镜耦合出射方式构成太赫兹(THz)波参量振荡器,实现了高效可调谐的THz波输出,调谐范围为0.95~2.10THz。在1.80THz处,当泵浦能量为101mJ时,产生的THz波平均功率为580nW,THz波单脉冲能量为58nJ,THz波能量转换效率为5.74×10-7;同时产生的Stokes能量为2.7mJ。实验中,观察到了一阶和二阶Stokes光,一阶Stokes光与泵浦光的频差等于产生的THz波的频率。

关 键 词:太赫兹波(THz)  THz波参量振荡器  电磁耦子  非共线相位匹配

Experimental investigation of Si-prism coupler THz-wave parametric oscillator
LI Zhong-yang,YAO Jian-quan,XU De-gang,BING Pi-bin and ZHONG Kai.Experimental investigation of Si-prism coupler THz-wave parametric oscillator[J].Journal of Optoelectronics·laser,2012(3):425-428.
Authors:LI Zhong-yang  YAO Jian-quan  XU De-gang  BING Pi-bin and ZHONG Kai
Affiliation:Institute of Laser and Optoelectronics,College of Precision Instrument and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China;Institute of Electric Power,North China University of Water Resources and Electric Power,Zhengzhou 450011,China;Institute of Laser and Optoelectronics,College of Precision Instrument and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China;Institute of Laser and Optoelectronics,College of Precision Instrument and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China;Institute of Electric Power,North China University of Water Resources and Electric Power,Zhengzhou 450011,China;Institute of Laser and Optoelectronics,College of Precision Instrument and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China
Abstract:High-efficient THz-wave radiation is achieved from a Si-prism coupler THz-wave parametric oscillator via a block of MgO:LiNbO3.The THz-wave radiation from 0.95 THz to 2.10 THz is obtained.The average power of THz-wave is 580 nW and the output energy of Stokes wave is 2.7 mJ at 1.8 THz when the pump energy is 101 mJ,corresponding to the THz-wave energy conversion efficiency of 5.74×10-7.During the experiments,the first-order and the second-order Stokes waves are observed.The frequency shift of the first-order Stokes wave is equivalent to the frequency of the generated THz-wave.
Keywords:THz-wave  THz-wave parametric oscillator  polariton  noncollinear phase matching
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