Alexander V. Volyar

TL;DR: Under cylindrically symmetric light-matter interaction, the radially, azimuthally, and spirally polarized eigen-modes for the light field are revealed to be of a fundamental interest to describe the physical mechanisms at work when dealing with scalar and vectorial optical singularities.

TL;DR: A simple, single beam method for determination of the topological charge of polychromatic optical vortices based on astigmatic transformation of singular optical beams, where the intensity pattern of a vortex beam acquires a form of dark stripes in the focal plane of a cylindrical lens.

TL;DR: In this paper, it was shown that the white vortex can be defined by means of three experimentally measurable values: the orbital parameter S3L, the probability to meet such a vortex state W and the noise of the vortex core P (or the polarization degree in the given space point), and the independent characteristic of the 'white' optical vortex is also its colour gamut near the phase singularity.

TL;DR: In this article, the problem of propagation of optical vortices in multimode fibers is considered and the continuity equation is obtained for the flow of the vortex angular momentum in an unhomogeneous medium.

TL;DR: In this paper, the process of generation and transformation of the structure of singular beams, both coherent and incoherent, in a crystal-polarization compensatorpolarizer system is studied.