Femtosecond filamentation in turbulent air

被引：58
|
作者：
Houard, A. [2 ]
Franco, M. [2 ]
Prade, B. [2 ]
Durecu, A. [3 ]
Lombard, L. [3 ]
Bourdon, P. [3 ]
Vasseur, O. [3 ]
Fleury, B. [4 ]
Robert, C. [4 ]
Michau, V. [4 ]
Couairon, A. [1 ]
Mysyrowicz, A. [2 ]
机构：
[1] Ecole Polytech, Ctr Phys Theor, CNRS, F-91128 Palaiseau, France
[2] ENSTA Ecole Polytech, Lab Opt Appl, CNRS, F-91761 Palaiseau, France
[3] Off Natl Etud & Rech Aerosp, Dept Opt Theor & Appl, F-91761 Palaiseau, France
[4] Off Natl Etud & Rech Aerosp, Dept Opt Theor & Appl, F-92322 Chatillon, France
来源：
PHYSICAL REVIEW A | 2008年 / 78卷 / 03期
关键词：
D O I：
10.1103/PhysRevA.78.033804
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The influence of air turbulence on femtosecond laser filamentation is studied experimentally and numerically for laser powers of a few critical powers. Air turbulence in the path of the beam prior to filamentation induces a large pointing and formation instability attributed to an increase of the self-focusing distance and higher modulational instability in the presence of turbulence. By contrast, previously formed filaments are robust both in terms of beam pointing accuracy and survival when crossing turbulent air.
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页数：9
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