Plasma channels during filamentation of a femtosecond laser pulse with wavefront astigmatism in air

被引：16

作者：

Dergachev, A. A. ^{[1
,2
]}

Ionin, A. A. ^{[3
]}

Kandidov, V. P. ^{[1
,2
]}

Mokrousova, D. V. ^{[3
]}

Seleznev, L. V. ^{[3
]}

Sinitsyn, D. V. ^{[3
]}

Sunchugasheva, E. S. ^{[3
]}

Shlenov, S. A. ^{[1
,2
]}

Shustikova, A. P. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119991, Russia

[3] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia

来源：

QUANTUM ELECTRONICS | 2014年 / 44卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

filamentation; femtosecond laser pulse; laser plasma; laser filament; PHASE MODULATION; IONIZATION;

D O I：

10.1070/QE2014v044n12ABEH015472

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have demonstrated experimentally and numerically the possibility of controlling parameters of plasma channels formed during filamentation of a femtosecond laser pulse by introducing astigmatism in the laser beam wavefront. It is found that weak astigmatism increases the length of the plasma channel in comparison with the case of aberration-free focusing and that strong astigmatism can cause splitting of the plasma channel into two channels located one after another on the filament axis.

引用

页码：1085 / 1090

页数：6

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