title: Stable vortex solitons in nonlocal self-focusing nonlinear media.
abstract: 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.
authors.affiliation: Institute for Nuclear Research, Kiev 03680, Ukraine.
authors.forename: Alexander I
authors.initials: AI
authors.lastname: Yakimenko
authors.forename: Yuri A
authors.initials: YA
authors.lastname: Zaliznyak
authors.forename: Yuri
authors.initials: Y
authors.lastname: Kivshar