Laser & Optoelectronics Progress, Volume. 48, Issue 5, 51901(2011)

Terahertz Wave Sources Based on Difference Frequency Generation and Optical Parametric Processes

Wang Bingbing1,2、*, Huang Jingguo1,2, Lu Jinxing1,2, Huang Zhiming1, and Shen Xuemin1
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  • 1[in Chinese]
  • 2[in Chinese]
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    The THz source based on the nonlinear optical effects possesses the special properties and advantages. A theoretical study has been made for the generation of widely tunable narrow-band THz wave based on the process of the difference frequency generation (DFG) and the stimulated polariton scattering in a GaSe crystal and a MgO doped LiNbO3 crystal, respectively. The relations among the THz wave, pump wave, idler wave and phase-matching angle are analysed. The condition and range of THz radiation generation are given. A NdYAG laser and an optical parametric oscillator (OPO) have been used to provide the pump and idler beams. A THz radiation generation system is built under collinear phase-matching conditions. A THz-wave parametric generator (TPG) is developed, and the TPG emits THz efficiently.

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    Wang Bingbing, Huang Jingguo, Lu Jinxing, Huang Zhiming, Shen Xuemin. Terahertz Wave Sources Based on Difference Frequency Generation and Optical Parametric Processes[J]. Laser & Optoelectronics Progress, 2011, 48(5): 51901

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    Paper Information

    Category: Nonlinear Optics

    Received: Aug. 22, 2010

    Accepted: --

    Published Online: May. 9, 2011

    The Author Email: Bingbing Wang (wbb@mail.ustc.edu.cn)

    DOI:10.3788/lop48.051901

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