June 30, 2005Physical Review E268 citationsOpen Access
Stable vortex solitons in nonlocal self-focusing nonlinear media
Key Points
- This study aims to investigate the stability of vortex solitons in self-focusing nonlinear media and to explore the mechanisms behind this stability.
- Analyzed the properties of vortex beams
- Investigated the effects of nonlocal nonlinear responses
- Studied the elimination of azimuthal instability
- Vortex solitons remain stable in nonlocal nonlinear media
- Instability due to vortex symmetry-breaking is effectively eliminated
- Physical mechanisms for vortex stabilization are discussed
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.