Kerr-induced spontaneous Bessel beam formation in the regime of strong two-photon absorption
Articolo
Data di Pubblicazione:
2008
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.
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.
Tipologia CRIS:
Articolo su Rivista
Elenco autori:
Faccio, DANIELE FRANCO ANGEL; M., Clerici; A., Averchi; Jedrkiewicz, Ottavia; S., Tzortzakis; D. G., Papazoglou; F., Bragheri; L., Tartara; A., Trita; S., Henin; I., Cristiani; A., Couairon; DI TRAPANI, Paolo
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