Effects of initial focusing on the blueshifting of high-power laser pulses

被引：3

作者：

Koga, James K. ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Adv Photon Res Ctr, Kizu, Kyoto 6190215, Japan

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2009年 / 26卷 / 05期

关键词：

FEMTOSECOND FILAMENTATION; OPTICAL BEAMS; IONIZATION; WAVE; APPROXIMATION; PROPAGATION; GASES; MEDIA; LIGHT; FIELD;

D O I：

10.1364/JOSAB.26.000930

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

By directly solving Maxwell's equations including higher-order gas polarization and by using a semi-analytical method for pulse propagation, we study the generation of plasma by high-irradiance laser pulses propagating in a neutral gas and determine the effect of initial focusing on the blueshift of the laser pulse. By varying the initial focusing length, we find that longer than a specific focusing length the blueshift is nearly fixed and shorter than the specific focusing length that the shift changes with the initial focusing length. (C) 2009 Optical Society of America

引用

页码：930 / 938

页数：9

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