Femtosecond filamentation in air at low pressures: Part I: Theory and numerical simulations - Archive ouverte HAL Access content directly
Journal Articles Optics Communications Year : 2006

Femtosecond filamentation in air at low pressures: Part I: Theory and numerical simulations

(1) , (2) , (2) , (2) , (2) , (2)
1
2

Abstract

We investigate numerically the influence of the pressure on femtosecond filamentation in air. We show that femtosecond filamentation occurs at low pressure and compute the features of the plasma channel generated in the wake of the pulse. We discuss the influence of the pulse duration, chirp and input beam shape on the length of the plasma channels. These calculations constitute a prerequisite for laboratory experiments over short distances as well as for vertical femtosecond filamentation at high altitude on which light detection and ranging techniques or lightning protection rely.

Dates and versions

hal-00461560 , version 1 (04-03-2010)

Identifiers

Cite

Arnaud Couairon, Michel Franco, Grégoire Méchain, Thomas Olivier, Bernard Prade, et al.. Femtosecond filamentation in air at low pressures: Part I: Theory and numerical simulations. Optics Communications, 2006, 259 (1), pp.265-273. ⟨10.1016/j.optcom.2005.08.064⟩. ⟨hal-00461560⟩
101 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More