Variation of electron density in spectral broadening process in solid thin plates at 400 nm  

作　　者：Si-Yuan Xu Yi-Tan Gao Xiao-Xian Zhu Kun Zhao Jiang-Feng Zhu Zhi-Yi Wei 许思源;高亦谈;朱孝先;赵昆;朱江峰;魏志义(School of Physics and Optoelectronic Engineering,Xidian University,Xi’an 710071,China;Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Songshan Lake Material Laboratory,Dongguan 523808,China)

机构地区：[1]School of Physics and Optoelectronic Engineering,Xidian University,Xi’an 710071,China [2]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Songshan Lake Material Laboratory,Dongguan 523808,China

出　　处：《Chinese Physics B》2021年第10期323-327,共5页中国物理B（英文版）

基　　金：supported by the National Key Research and Development Program of China(Grant No.2017YFB0405202),the Major Program of the National Natural Science Foundation of China(Grant No.61690221);the General Program of the National Natural Science Foundation of China(Grant No.11774277).

摘　　要：The generation of continuous spectrum centered at 400 nm from solid thin plates is demonstrated in this work.A continuum covering 365 nm to 445 nm is obtained when 125-µJ frequency-doubled Ti:sapphire laser pulses are applied to six thin fused silica plates at 1-kHz repetition rate.The generalized nonlinear Schrodinger equation simplified for forward propagation is solved numerically,the spectral broadening with the experimental parameters is simulated,and good agreement between simulated result and experimental measurement is achieved.The variation of electron density in the thin plate and the advantage of a low electron density in the spectral broadening process are discussed.

关 键 词：nonlinear spectral broadening time-dependent nonlinear Schrodinger equation self-phase modu-lation electron density 

分 类 号：TN24[电子电信—物理电子学]