Diffraction of white-light supercontinuum by femtosecond laser-induced transient grating in carbon bisulfide

Experiments on fs laser-induced transient grating （LITG） in carbon bisulfide （CS2） are carried out to explore the chirp characteristics of a white-light supercontinuum （SC） generated by a 800-nm, 160-fs laser pulse in a 4-mm thick Al2O3 crystal. Two orders of diffraction signals of SC by fs LITG in...

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Bibliographic Details
Published inChinese physics B Vol. 19; no. 10; pp. 309 - 313
Main Author Huang Li Yang Yan-Qiang Wang Ying-Hui Zheng Zhi-Ren Su Wen-Hui
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.10.2010
Subjects
二硫化碳
啁啾特性
激光诱导
衍射光
超连续谱
飞秒激光脉冲
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Summary:Experiments on fs laser-induced transient grating （LITG） in carbon bisulfide （CS2） are carried out to explore the chirp characteristics of a white-light supercontinuum （SC） generated by a 800-nm, 160-fs laser pulse in a 4-mm thick Al2O3 crystal. Two orders of diffraction signals of SC by fs LITG in CS2 are observed, demonstrating that both the third-order process and the fifth-order process are present simultaneously. The experimental results also imply that the formation of an fs transient refractive-index grating in CS2 is mainly due to the electronic polarization process.
Bibliography:TN24
TQ127.14
laser-induced transient grating, white-light supercontinuum, chirp characteristic
11-5639/O4
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/19/10/104207