(3+1)-dimensional numerical simulations of femtosecond laser filaments in air:: Toward a quantitative agreement with experiments

被引：38

作者：

Champeaux, S. ^{[1
]}

Berge, L. ^{[1
]}

Gordon, D. ^{[2
]}

Ting, A. ^{[2
]}

Penano, J. ^{[2
]}

Sprangle, P. ^{[2
]}

机构：

[1] CEA, Ctr DAM France, Dept Phys Theor & Appl, F-91297 Bruyeres Le Chatel, Arpajon, France

[2] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA

来源：

PHYSICAL REVIEW E | 2008年 / 77卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.77.036406

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Three-dimensional numerical simulations and direct experimental measurements of the multifilamentation of femtosecond laser pulses propagating in air are quantitatively compared. Agreement is obtained in terms of the evolution of the filamentation pattern and in terms of the size and energy of the individual filaments through 12 m of propagation. These results are made possible by the combination of a massively parallel propagation code along with a nondestructive experimental diagnostic technique. Influence of the pulse duration is moreover addressed. The numerical calculations also show that single and multiple filaments exhibit almost identical spectral signature.

引用

页数：6

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