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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 22, Iss. 4 — Apr. 1, 2005
  • pp: 862–869

Far-field spectral characterization of conical emission and filamentation in Kerr media

Daniele Faccio, Paolo Di Trapani, Stefano Minardi, Alberto Bramati, Francesca Bragheri, Carlo Liberale, Vittorio Degiorgio, Audrius Dubietis, and Aidas Matijosius  »View Author Affiliations


JOSA B, Vol. 22, Issue 4, pp. 862-869 (2005)
http://dx.doi.org/10.1364/JOSAB.22.000862


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Abstract

By use of an imaging spectrometer we map the far-field (theta-lambda) spectra of 200-fs optical pulses that have undergone beam collapse and filamentation in a Kerr medium. By studying the evolution of the spectra with increasing input power and by using a model based on an asymptotic linear superposition of stationary wave modes (rather than the exact instantaneous solution), we are able to trace a consistent model of optical beam collapse highlighting the interplay between conical emission, multiple pulse splitting, and other effects such as spatial chirp.

© 2005 Optical Society of America

OCIS Codes
(190.5940) Nonlinear optics : Self-action effects
(320.2250) Ultrafast optics : Femtosecond phenomena

Citation
Daniele Faccio, Paolo Di Trapani, Stefano Minardi, Alberto Bramati, Francesca Bragheri, Carlo Liberale, Vittorio Degiorgio, Audrius Dubietis, and Aidas Matijosius, "Far-field spectral characterization of conical emission and filamentation in Kerr media," J. Opt. Soc. Am. B 22, 862-869 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-4-862

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