8 citations · 15 across the 3 of their papers we have counts for
7 papers
X and Y waves in the spatiotemporal Kerr dynamics of a self-guided light beam
Miguel A. Porras, Alberto Parola
The nonlinear stage of development of the spatiotemporal instability of the monochromatic Townes beam in a medium with self-focusing nonlinearity and normal dispersion is studied b…
Nonlinear unbalanced Bessel beams in the collapse of Gaussian beams arrested by nonlinear losses
Miguel A. Porras, Alberto Parola
Collapse of a Gaussian beam in self-focusing Kerr media arrested by nonlinear losses may lead to the spontaneous formation of a quasi-stationary nonlinear unbalanced Bessel beam wi…
Collapse-driven spatiotemporal dynamics of filament formation
Miguel A. Porras, Alberto Parola, Daniele Faccio +2
The transition from spatial to spatiotemporal dynamics in Kerr-driven beam collapse is modelled as the instability of the Townes profile. Coupled axial and conical radiation, tempo…
Conical emission, pulse splitting and X-wave parametric amplification in nonlinear dynamics of ultrashort light pulses
Daniele Faccio, Miguel A. Porras, Audrius Dubietis +3
The precise observation of the angle-frequency spectrum of light filaments in water reveals a scenario incompatible with current models of conical emission (CE). Its description in…
Non-linear unbalanced Bessel beams: Stationary conical waves supported by nonlinear losses
Miguel A. Porras, Alberto Parola, Daniele Faccio +2
Nonlinear losses accompanying Kerr self-focusing substantially impacts the dynamic balance of diffraction and nonlinearity, permitting the existence of localized and stationary sol…
Light Filaments Without Self Guiding
Audrius Dubietis, Eugenijus Gaizauskas, Gintaras Tamosauskas +1
An examination of the propagation of intense 200 fs pulses in water reveals light filaments not sustained by the balance between Kerr-induced self-focusing and plasma-induced defoc…