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

D. Faccio, Matteo 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

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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. (c) 2008 Optical Society of America.

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

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