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This article is cited in 2 scientific papers (total in 2 papers)
DIFFRACTIVE OPTICS, OPTICAL TECHNOLOGIES
Sharp focusing of beams with V-point polarization singularities
V. V. Kotlyarab, A. G. Nalimovab, S. S. Stafeevab, A. A. Kovalevab a IPSI RAS – Branch of the FSRC "Crystallography and Photonics" RAS,
443001, Samara, Russia, Molodogvardeyskaya 151
b Samara National Research University, 443086, Samara, Russia, Moskovskoye Shosse 34
Abstract:
It is theoretically and numerically shown that when tightly focusing an n-th order vector light field that has the central V-point (at which the linear polarization direction is undetermined), the polarization singularity index n, and a "flower"-shaped intensity pattern with 2(n-1) lobes it forms a transverse intensity distribution with 2(n-1) local maxima. At the same time, a vector light field with the polarization singularity index -n, which has the form of a "web" with 2(n+1) cells generates at the sharp focus a transverse intensity distribution with 2(n+1) local maxima. In the focal spot, either 2(n-1) or 2(n+1) V-point polarization singularities with alternating indices +1 or -1 are formed at the intensity zeros.
Keywords:
vector light beam, topological charge, polarization singularity, optical vortex
Received: 01.03.2021 Accepted: 06.04.2021
Citation:
V. V. Kotlyar, A. G. Nalimov, S. S. Stafeev, A. A. Kovalev, “Sharp focusing of beams with V-point polarization singularities”, Computer Optics, 45:5 (2021), 643–653
Linking options:
https://www.mathnet.ru/eng/co949 https://www.mathnet.ru/eng/co/v45/i5/p643
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