Towards a control of multiple filamentation by spatial regularization of a high-power femtosecond laser pulse

被引：87

作者：

Kandidov, VP

Akozbek, N

Scalora, M

Kosareva, OG ^{[1
]}

Nyakk, AV

Luo, Q

Hosseini, SA

Chin, SL

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Ctr Int Laser, Moscow 119992, Russia

[2] Time Domain Corp, Huntsville, AL 35806 USA

[3] USA, Aviat & Missile Command, AMSAM WS RD ST, Redstone Arsenal, AL 35898 USA

[4] Univ Laval, Dept Phys Genie Phys & Opt, Quebec City, PQ G1K 7P4, Canada

[5] Univ Laval, Ctr Opt Photon & Laser, Quebec City, PQ G1K 7P4, Canada

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2005年 / 80卷 / 02期

关键词：

D O I：

10.1007/s00340-004-1677-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a new method for controlling randomly generated multiple filaments during the propagation of femtosecond laser pulses in optical media. The method is based on introducing a periodic amplitude modulation of the transverse beam profile. It is shown both experimentally and numerically that the introduction of a periodic mesh into a propagation path of a femtosecond near-infrared laser pulse leads to a deterministic spatial distribution of multiple filaments in the presence of initial random fluctuations. As a result, the number of filaments is increased as compared to the random case.

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页码：267 / 275

页数：9

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