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

来源：

OPTICS LETTERS | 2009年 / 34卷 / 02期

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

页码：166 / 168

页数：3