Non-linear unbalanced Bessel beams: Stationary conical waves supported by nonlinear losses

摘要

Nonlinear losses accompanying Kerr self-focusing substantially impacts thedynamic balance of diffraction and nonlinearity, permitting the existence oflocalized and stationary solutions of the 2D+1 nonlinear Schrodinger equationwhich are stable against radial collapse. These are featured by linear conicaltails that continually refill the nonlinear, central spot. An experiment showsthat the discovered solution behaves as strong attractor for the self-focusingdynamics in Kerr media.