Time-dependence of Talbot effect under ultrashort laser illumination

被引：0

作者：

Wang, HS ^{[1
]}

Zhou, CH ^{[1
]}

Zhao, S ^{[1
]}

Xi, P ^{[1
]}

Liu, LR ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

来源：

PHOTONIC DEVICES AND ALGORITHMS FOR COMPUTING II | 2000年 / 4114卷

关键词：

Fresnel diffraction; grating; ultrashort laser pulse; temporal Talbot effect;

D O I：

10.1117/12.408560

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

An equation is given to study the time dependence of the Fresnel diffraction field of a grating illuminated by an ultrashort pulsed-laser beam. Through numerical calculation, we find the temporal Talbot effect is both time-dependent and distance-dependent. For the width of the input pulse Delta tau within a few decade femtoseconds, the shorter Talbot distance, and /or the longer length of the input pulse, the more similar the outline of the temporal intensity distribution to that of the input pulse. While for Delta tau within a few thousand femtoseconds, the outline of the temporal intensity distribution is almost the same as that of the input pulse except for a time-delay.

引用

页码：230 / 235

页数：6

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