White-light continuum generation and filamentation during the propagation of ultra-short laser pulses in air

Authors
Akozbek, N Scalora, M Bowden, CM Chin, SL
Citation
N. Akozbek et al., White-light continuum generation and filamentation during the propagation of ultra-short laser pulses in air, OPT COMMUN, 191(3-6), 2001, pp. 353-362
Citations number
42
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS COMMUNICATIONS
ISSN journal
00304018 → ACNP
Volume
191
Issue
3-6
Year of publication
2001
Pages
353 - 362
Database
ISI
SICI code
0030-4018(20010508)191:3-6<353:WCGAFD>2.0.ZU;2-7
Abstract
We present numerical results on the propagation of femtosecond pulses in ai r including multiphoton ionization. group-velocity dispersion, space-time f ocusing, self-steepening, Raman response. and higher-order chi ((5)) defocu sing. It is shown that the self-steepening terms cause strong blue shifting of the spectrum generating a white-light continuum. Our results are in goo d qualitative agreement with experimental observations. (C) 2001 Elsevier S cience B.V. All rights reserved.