Nonlinear X-shaped waves by second-harmonic generation with collimated femtosecond pulses

被引:5
作者
Lei, Wenqi [1 ]
Wu, Jian [1 ]
Cai, Hua [1 ]
Zeng, Heping [1 ]
机构
[1] E China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
关键词
DYNAMICS; SOLITONS;
D O I
10.1364/OL.34.000166
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Nonlinear X-shaped angle-wavelength spectrum of the generated second-harmonic wave is observed for a collimated femtosecond pulse of a large beam waist, where the spatiotemporal balance is originated from mutual coupling of the effective nonlinear Kerr effects, pulse frequency chirp, and negative phase shift from cascaded quadratic processes with appropriate phase mismatch. (C) 2009 Optical Society of America
引用
收藏
页码:166 / 168
页数:3
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