807 citations · 3.5k across the 48 of their papers we have counts for
3 papers · 2 filters
Displacements and evolution of optical vortices in edge-diffracted Laguerre-Gaussian beams
Aleksandr Bekshaev, Aleksey Chernykh, Anna Khoroshun +1
Based on the Kirchhoff-Fresnel approximation, we consider behavior of the optical vortices (OV) upon propagation of the diffracted Laguerre-Gaussian (LG) beams with topological cha…
Misaligned ring resonator with a lens-like medium
Aleksandr Ya. Bekshaev, Valentin M. Grimblatov, Vitaly V. Kalugin
The paper presents a theoretical study of the eigenmodes of a misaligned ring multi-mirror laser cavity one or several arms of which are filled with an inhomogeneous medium. We sta…
Evolution of the phase singularities in edge-diffracted optical-vortex beams
Aleksandr Bekshaev, Lidiya Mikhaylovskaya, Aleksey Chernykh +1
We study, both theoretically and by experiment, migration of the amplitude zeros within a fixed cross section of the edge-diffracted optical-vortex beam, when the screen edge perfo…