2004/11/11 by Alexander Yakimenko, Yuri Zaliznyak, Yuri Kivshar
Physics and Astronomy · #nlin.PS
paper · pdf · doi:10.1103/physreve.71.065603
4 pages, 5 figures
arxiv created 2004/11/11 · arxiv updated 2009/12/01
We reveal that spatially localized vortex solitons become stable in self-focusing nonlinear media when the vortex symmetry-breaking azimuthal instability is eliminated by a nonlocal nonlinear response. We study the main properties of different types of vortex beams and discuss the physical mechanism of the vortex stabilization in spatially nonlocal nonlinear media.