The Polarization and Efficiency of the Terahertz Pulses Generated by Tilted-Pulse-Front Pumping Scheme

Optical rectification of laser pulses in LiNbO 3 by tilted-pulse-front pumping(TPFP) is a powerful way to generate terahertz(THz) pulses. However, comprehensive theoretical analysis is still lack. In this work, we first established and presented a detailed theoretical model for TPFP scheme, which th...

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Bibliographic Details
Published in:Journal of infrared, millimeter and terahertz waves millimeter and terahertz waves, 2014-03, Vol.35 (3), p.318-324
Main Authors: Zhong, Sen-Cheng, Zhu, Li-Guo, Tao, Shi-Xing, Meng, Kun, Peng, Long-Yao, Liu, Qiao, Peng, Qi-Xian, Zhao, Jian-Heng, Li, Ze-Ren
Format: Article
Language:English
Subjects:
Beams (radiation)
Classical Electrodynamics
Electrical Engineering
Electronics and Microelectronics
Engineering
Infrared
Instrumentation
Lasers
Lithium niobates
Mathematical analysis
Optical pumping
Polarization
Pumps
Tensors
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Summary:Optical rectification of laser pulses in LiNbO 3 by tilted-pulse-front pumping(TPFP) is a powerful way to generate terahertz(THz) pulses. However, comprehensive theoretical analysis is still lack. In this work, we first established and presented a detailed theoretical model for TPFP scheme, which then was used to analyze the pump beam polarization dependent terahertz pulses generated by this scheme. The terahertz pulses polarization and generation efficiency for various pump beam polarization angle were investigated by using nonlinear susceptibility tensor of LiNbO 3 crystal. The results indicate that one can change the polarization state of the terahertz pulse by changing the pump beam polarization.
ISSN:1866-6892
1866-6906
DOI:10.1007/s10762-014-0051-6