Turbulence-induced beam wandering during femtosecond laser filamentation

被引：6
|
作者：
Zeng, Tao [1 ]
Gao, Hui [2 ]
Sun, Xiaodong [3 ]
Liu, Weiwei [1 ,4 ]
机构：
[1] Nankai Univ, Inst Modern Opt, Minist Educ, Key Lab Opt Informat Sci & Technol, Tianjin 300071, Peoples R China
[2] Tianjin Polytech Univ, Sch Sci, Tianjin 300387, Peoples R China
[3] Tianjin Polytech Univ, Sch Elect Informat Engn, Tianjin 300387, Peoples R China
[4] Univ Elect Sci & Technol, Cooperat Innovat Ctr Terahertz Sci, Chengdu 611731, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2015年 / 13卷 / 07期
基金：
中国国家自然科学基金;
关键词：
EXTENDED PLASMA CHANNELS; PULSE SELF-COMPRESSION; GENERATION; AIR; AXICON; SPECTROSCOPY; DISCHARGES; SIMULATION; LONG; GAS;
D O I：
10.3788/COL201513.070008
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The influence of air tutbuleiicc on the ttansctsc wandetiny of a single femtosecond laser filan ent is studied by numerical simulation. The results show that the average transverse displacement of the single filament <delta r > is proportional to the square root of turbulent structure constant and the relations between <delta r > and the propagatioi I distance call be fit by a power function. Tn additioil, by using an axicon as a fociisirlg optics, tile wandering of a single filament is suggested to be stronger than the free-propagation case.
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页数：5
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