Kerr-induced spontaneous Bessel beam formation in the regime of strong two-photon absorption

  • D. Faccio
  • , M. Clerici
  • , A. Averchi
  • , O. Jedrkiewicz
  • , S. Tzortzakis
  • , D. G. Papazoglou
  • , F. Bragheri
  • , L. Tartara
  • , A. Trita
  • , S. Henin
  • , I. Cristiani
  • , A. Couairon
  • , P. Di Trapani

Research output: Contribution to journalArticlepeer-review

Abstract

We study the effect of Two-Photon Absorption (TPA) nonlinear losses on Gaussian pulses, with power that exceeds the critical power for self-focusing, propagating in bulk kerr media. Experiments performed in fused silica and silicon highlight a spontaneous reshaping of the input pulse into a pulsed Bessel beam. A filament is formed in which sub-diffractive propagation is sustained by the Bessel-nature of the pulse.

Original languageEnglish
Pages (from-to)8213-8218
Number of pages6
JournalOptics Express
Volume16
Issue number11
DOIs
Publication statusPublished - 26 May 2008

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