Portraying polarization state of terahertz pulse generated by a two-color laser field in air

被引：27
|
作者：
Zhang, Yizhu [1 ]
Chen, Yanping [2 ,3 ]
Xu, Shengqi [1 ]
Lian, Hui [1 ]
Wang, Mingwei [1 ]
Liu, Weiwei [1 ]
Chin, See Leang [2 ,3 ]
Mu, Guoguang [1 ]
机构：
[1] Nankai Univ, Inst Modern Opt, Educ Minist China, Key Lab Optoelect Informat Sci & Technol, Tianjin 300071, Peoples R China
[2] Univ Laval, COPL, Quebec City, PQ G1V 0A6, Canada
[3] Univ Laval, Dept Phys Genie Phys & Opt, Quebec City, PQ G1V 0A6, Canada
来源：
OPTICS LETTERS | 2009年 / 34卷 / 18期
基金：
加拿大自然科学与工程研究理事会; 中国国家自然科学基金;
关键词：
D O I：
10.1364/OL.34.002841
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
By using an electro-optic sampling technique, the instantaneous field vector of the terahertz (THz) pulse generated by mixing a near-IR femtosecond pulse and its second harmonic in air has been studied. The polarization of the investigated THz pulse is found to be predominantly linear and orthogonal to that of the second harmonic, revealing the major role of chi((3))(xyxy) during the four-wave mixing process. (C) 2009 Optical Society of America
引用
收藏
页码：2841 / 2843
页数：3
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