We review optical phenomena associated with the internal energy redistribution which
accompany propagation and transformations of monochromatic light fields in homogeneous …

Over the past 30 years, physical optics has been enriched by the appearance of singular
optics as a new branch approved in scientific classifiers. This review briefly outlines the main …

We demonstrate the experimental generation of orbital angular momentum (OAM)
multiplexed multipartite entanglement with cascaded four-wave mixing processes in a …

Multipartite entanglement (ME) is the fundamental ingredient for building quantum networks.
The scale of ME determines its quantum information carrying and processing capability …

A general study of transverse energy flows (TEF) as physically meaningful and informative
characteristics of paraxial light beams' spatial structure is presented. The total TEF can be …

We generate a spatiotemporal optical vortex (STOV) with tunable orbital angular momentum
(OAM) orientation by a simple lens system. We utilize a cylindrical lens system, which is an …

Two simple and high-efficiency techniques for measuring the orbital angular momentum
(OAM) of paraxial laser beams are proposed and studied numerically and experimentally …

This book is devoted to the consideration of unusual laser beams–vortex or singular beams.
It contains many numerical examples, which clearly show how the phase of optical vortices …

A circular Laguerre–Gaussian mode transformation by an astigmatic lens is considered
theoretically as an example of the higher-order optical vortex symmetry breakdown. Behind …

In this Letter, we introduce a new class of abruptly autofocued and rotated circular chirp
Pearcey Gaussian vortex beams (AARCCPGVBs) which tend to abruptly autofocused …