Bright vortex bullets in a parametric band-gap system

摘要: Summary form only given. It is well known that multi-dimensional bright and dark soliton solutions exist in a parametric system with one-dimensional volume grating. An optical vortex soliton-like object contains phase singularity, around which the of electric field changes by an integer multiple 2m/spl pi/ where m topological charge singularity. Two-dimensional have been found conventional without band-gaps. They can be classified into two categories, vortices vortices. Dark appear like hole uniform background. By contrast, hollow cone on Here we look for stationary localized all three dimensions band-gap system, are described normalised equations.