Spectral modulation and supercontinuum generation assisted by infrared femtosecond plasma grating  

作　　者：刘作业 孙少华 史彦超 丁鹏基 刘情操 刘小亮 丁宝卫 胡碧涛 

机构地区：[1]School of Nuclear Science and Technology,Lanzhou University

出　　处：《Chinese Physics B》2013年第7期359-363,共5页中国物理B（英文版）

基　　金：the National Natural Science Foundation of China(Grant Nos.11135002,11075069,91026021,and 11075068);the Scholarship Award for Excellent Doctoral Student of Ministry of Education,China

摘　　要：Spectral modulation and supercontinuum generation of a probe pulse is investigated by using the plasma grating induced by the interference of two infrared femtosecond laser pulses. The dependences of the supercontinuum generation from the probe pulse on the time delay, the relative polarization angle between the probe pulse and the two-pump pulses, and the input probe pulse energy are investigated. The far-field spatial profiles of the three pulses are measured with different time delays and relative polarization angle, and the core energy of the probe pulse as functions of the time delay and relative polarization angle are also shown.Spectral modulation and supercontinuum generation of a probe pulse is investigated by using the plasma grating induced by the interference of two infrared femtosecond laser pulses. The dependences of the supercontinuum generation from the probe pulse on the time delay, the relative polarization angle between the probe pulse and the two-pump pulses, and the input probe pulse energy are investigated. The far-field spatial profiles of the three pulses are measured with different time delays and relative polarization angle, and the core energy of the probe pulse as functions of the time delay and relative polarization angle are also shown.

关 键 词：plasma grating supercontinuum generation redistribution of refractive index 

分 类 号：O53[理学—等离子体物理]