Post-focal filamentation of an externally focused femtosecond laser pulse in air

被引：6
|
作者：
Geints, Yu E. [1 ]
Zemlyanov, A. A. [1 ]
机构：
[1] Zuev Inst Atmospher Opt SB RAS, Tomsk 634021, Russia
来源：
LASER PHYSICS | 2013年 / 23卷 / 03期
关键词：
MOVING FOCUS; PROPAGATION;
D O I：
10.1088/1054-660X/23/3/035301
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Self-focusing and filamentation of externally focused ultrashort laser radiation in air are discussed. The influence of initial beam focusing on the filamentation length is numerically studied, and the conditions under which a light filament can resurrect after the linear focus are determined. We have found that the probability of this post-focal filamentation increases with an increase of laser power regardless of the type of filamentation (single/multiple).
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页数：8
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