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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 6 — Mar. 16, 2009
  • pp: 4726–4731

Ultraviolet-visible conical emission by multiple laser filaments

P. Maioli, R. Salamé, N. Lascoux, E. Salmon, P. Béjot, J. Kasparian, and J.-P. Wolf  »View Author Affiliations

Optics Express, Vol. 17, Issue 6, pp. 4726-4731 (2009)

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We characterized the angular distribution of the supercontinuum emission from multiple infrared laser filaments propagating in air over long distances, from the infrared (1080 nm) to ultraviolet (225 nm). These experimental data suggest that the X-Waves modeling or Cerenkov emission, rather than phase matching of four-wave mixing, could explain the conical emission. We also estimate the total light conversion efficiency from the original laser wavelength into the white-light continuum.

© 2009 Optical Society of America

OCIS Codes
(190.5940) Nonlinear optics : Self-action effects
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(260.5950) Physical optics : Self-focusing
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Nonlinear Optics

Original Manuscript: October 9, 2008
Revised Manuscript: November 6, 2008
Manuscript Accepted: November 18, 2008
Published: March 10, 2009

Paolo Maioli, Rami Salamé, N. Lascoux, E. Salmon, P. Béjot, J. Kasparian, and J-P Wolf, "Ultraviolet-visible conical emission by multiple laser filaments," Opt. Express 17, 4726-4731 (2009)

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