Filamentation of a femtosecond laser pulse with the initial beam ellipticity

被引:10
|
作者
Fedorov, V. Yu. [1 ]
Kandidov, V. P.
Kosareva, O. G.
Akozbek, N.
Scalora, M.
Chin, S. L.
机构
[1] Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119992, Russia
[2] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia
[3] Time Domain Corp, Huntsville, AL 35806 USA
[4] AMSRD AMR WS ST, RDECOM, Charles M Bowden Res Ctr, Redstone Arsenal, AL 35898 USA
[5] Univ Laval, Ctr Opt Photon & Laser, Quebec City, PQ G1K 7P4, Canada
[6] Univ Laval, Dept Phys Genie Phys & Opt, Quebec City, PQ G1K 7P4, Canada
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/S1054660X06080111
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The effect of transverse elliptical intensity distribution on multiple filament formation in a femtosecond laser pulse is numerically studied. Two types of filament control are demonstrated. First, the beginning of filamentation can be varied by changing the degree of ellipticity. Second, random multiple filaments can be arranged in a spatial order predetermined by the specific shape of the ellipse. The latter is valid for pulses with a peak power more than ten times higher than the critical power for self-focusing in the medium.
引用
收藏
页码:1227 / 1234
页数:8
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