Femtosecond filaments as a new type of laser guide stars for astronomical adaptive optics

被引：3
|
作者：
Panov, N. A. [1 ]
Savvin, A. D. [1 ]
Kosareva, O. G. [1 ]
Savel'ev-Trofimov, A. B. [1 ]
Kandidov, V. P. [1 ]
Potanin, S. A. [2 ]
Pol'skikh, S. D. [3 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Phys, Ctr Int Laser, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, PK Shternberg State Astron Inst, Moscow 119991, Russia
[3] Astrofiz Res & Prod Assoc, Moscow 125424, Russia
来源：
QUANTUM ELECTRONICS | 2009年 / 39卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
laser guide star; femtosecond pulse; filament; CONICAL EMISSION; LIGHT FILAMENTS; PLASMA CHANNEL; TERAWATT LASER; BEAM DIAMETER; AIR; PULSES; ULTRASHORT; GENERATION; ATMOSPHERE;
D O I：
10.1070/QE2009v039n06ABEH014012
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：
A method for creating laser guide stars based on filaments of high-power femtosecond radiation at altitudes more than 10 km is proposed. The parameters of femtosecond laser pulses optimal for the formation of laser guide stars are determined. An analytic expression for the critical self-focusing power on a vertical path is obtained.
引用
收藏
页码：560 / 565
页数：6
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