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

Article English OPEN
Faccio, Daniele ; Clerici, Matteo ; Averchi, Alessandro ; Jedrkiewicz, Ottavia ; Tzortzakis, Stelios ; Papazoglou, Dimitrios ; Bragheri, Francesca ; Tartara, Luca ; Trita, Andrea ; Henin, Stefano ; Cristiani, Ilaria ; Couairon, Arnaud ; Di Trapani, Paolo (2008)

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.
  • References (6)

    11. D. G. Papazoglou, I. Zergioti, and S. Tzortzakis, “Plasma strings from ultraviolet laser filaments drive permanent structural modifications in fused silica,” Opt. Lett. 32, 2055-2057 (2007).

    12. R. Alfano, Supercontinuum Laser Source (Springer, 2005).

    13. Q. Lin, O. J. Painter, and G. P. Agrawal, “Nonlinear optical phenomena in silicon waveguides: Modeling and applications,” Opt. Express 15, 16604-16644 (2007).

    14. P. Polesana, A. Couairon, D. Faccio, A. Parola, M. A. Porras, A. Dubietis, A. Piskarskas, and P. Di Trapani, “Observation of conical waves in focusing, dispersive, and dissipative Kerr media,” Phys. Rev. Lett. 99, 223902 (2007).

    15. M. A. Porras, A. Parola, D. Faccio, A. Dubietis, and P.Di Trapani, “Nonlinear unbalanced Bessel beams: Stationary conical waves supported by nonlinear losses,” Phys. Rev. Lett. 93, 153902 (2004).

    16. D. Faccio, M. Porras, A. Dubietis, F. Bragheri, A. Couairon, and P. Di Trapani, “Conical emission, pulse splitting, and x-wave parametric amplification in nonlinear dynamics of ultrashort light pulses,” Phys. Rev. Lett. 96, 193901 (2006).

  • Related Research Results (1)
  • Metrics
    No metrics available
Share - Bookmark