Stable Ring-Profile Vortex Solitons in Bessel Optical Lattices
Stable Ring-Profile Vortex Solitons in Bessel Optical Lattices
Stable ring-profile vortex solitons, featuring a bright shape, appear to be very rare in nature. However, here we show that they exist and can be made dynamically stable in defocusing cubic nonlinear media with an imprinted Bessel optical lattice. We find the families of vortex solitons and reveal their salient …