Control of filamentation of femtosecond laser pulses in a turbulent atmosphere

被引：11

作者：

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

Markov, A. I.

机构：

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

来源：

QUANTUM ELECTRONICS | 2009年 / 39卷 / 07期

关键词：

filamentation; femtosecond laser pulses; self-focusing; atmosphere; turbulent atmosphere; filamentation control; AIR; RANGE; POWER; O-2; N-2;

D O I：

10.1070/QE2009v039n07ABEH014116

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：

Various methods for controlling the onset of filamentation of a high-power laser pulse in extended vertical atmospheric paths are analysed. It is shown that the increase in the structure constant of the atmospheric turbulence on average leads to the earlier formation of 'hot' spots when the initial pulse power exceeds the critical self-focusing power by an order of magnitude and more. It is found in the numerical experiments that the use of broad focused beams is preferable for achieving the minimal standard deviation of a distance for the filament onset.

引用

页码：658 / 662

页数：5

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