Transformation of singular light beam transverse structure in resonant media

摘要

The peculiarities of transformation of transverse structure for singular light beams propagating in a resonantmedium have been analyzed theoretically. The influence of nonlinear absorption, self-focusing, and defocusingon the characteristics of optical vortices with different topological structure has been studied. The formationconditions and parameters for singular spatially localized structures have been characterized.