High-peak-power terahertz sources pumped by high power laser and single-shot measurement of terahertz temporal waveform

Sen-Cheng Zhong; Zhao-Hui Zhai; Li-Guo Zhu; Kun Meng; Qiao Liu; Qi-Xian Peng; Ze-Ren Li

doi:10.1117/12.2065449

3 February 2015 High-peak-power terahertz sources pumped by high power laser and single-shot measurement of terahertz temporal waveform

Sen-Cheng Zhong, Zhao-Hui Zhai, Li-Guo Zhu, Kun Meng, Qiao Liu, Qi-Xian Peng, Ze-Ren Li

Author Affiliations +

Proceedings Volume 9255, XX International Symposium on High-Power Laser Systems and Applications 2014; 92554O (2015) https://doi.org/10.1117/12.2065449
Event: XX International Symposium on High Power Laser Systems and Applications, 2014, Chengdu, China

Abstract

Optical rectification of laser pulses in LiNbO₃ crystal pumped by high power laser is one of the most powerful way to generate this high-peak-power terahertz pulses. It enhances the laser-terahertz transform efficiency by tilted-pulse-front pumping(TPFP) to fulfill phase match in the LiNbO₃ crystal. However, comprehensive theoretical analysis is still lack. In this work, a detailed theoretical model to investigate the THz generation efficiency by using nonlinear susceptibility tensor of LiNbO3 crystal was presented. Based on femtosecond laser system, a setup to generate high-peak-power terahertz pulses and a time domain spectroscopy system are established. The property of generated terahertz pulses was analyzed by using terahertz camera and THz time domain system. We also realized the single-shot measurement of terahertz temporal waveform by using this terahertz source.

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Sen-Cheng Zhong, Zhao-Hui Zhai, Li-Guo Zhu, Kun Meng, Qiao Liu, Qi-Xian Peng, and Ze-Ren Li "High-peak-power terahertz sources pumped by high power laser and single-shot measurement of terahertz temporal waveform", Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92554O (3 February 2015); https://doi.org/10.1117/12.2065449

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