Higher-Order Kerr Terms Allow Ionization-Free Filamentation in Gases

Bejot, Pierre; Kasparian, Jérôme; Henin, Stefano; Loriot, V.; Vieillard, T.; Hertz, E.; Faucher, O.; Lavorel, B.; Wolf, Jean-Pierre

doi:10.1103/PhysRevLett.104.103903

Scientific article

English

Higher-Order Kerr Terms Allow Ionization-Free Filamentation in Gases

Contributors

Bejot, Pierre; Kasparian, Jérôme

; Henin, Stefano; Loriot, V.; Vieillard, T.; Hertz, E.; Faucher, O.; Lavorel, B.; Wolf, Jean-Pierre

Published in

Physical review letters, vol. 104, no. 10

Publication date

2010

Abstract

We show that higher-order nonlinear indices (n4, n6, n8, n10) provide the main defocusing contribution to self-channeling of ultrashort laser pulses in air and argon at 800 nm, in contrast with the previously accepted mechanism of filamentation where plasma was considered as the dominant defocusing process. Their consideration allows us to reproduce experimentally observed intensities and plasma densities in self-guided filaments.

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

BEJOT, Pierre et al. Higher-Order Kerr Terms Allow Ionization-Free Filamentation in Gases. In: Physical review letters, 2010, vol. 104, n° 10. doi: 10.1103/PhysRevLett.104.103903

Article (Published version)

Identifiers

PID : unige:37832
DOI : 10.1103/PhysRevLett.104.103903

Journal ISSN

0031-9007

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16/06/2014 10:25:00

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04/07/2025 08:28:59

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04/07/2025 08:29:28

Higher-Order Kerr Terms Allow Ionization-Free Filamentation in Gases

Contributors

Published in

Publication date

Abstract

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

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Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation