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JOURNALS // Computer Optics // Archive

Computer Optics, 2024 Volume 48, Issue 2, Pages 186–191 (Mi co1226)

DIFFRACTIVE OPTICS, OPTICAL TECHNOLOGIES

Beams with the transverse-only intensity at the focus

S. S. Stafeevab, N. N. Kazakovb, V. V. Kotlyarab

a Image Processing Systems Institute, NRC "Kurchatov Institute"
b Samara National Research University

Abstract: In this work, sharp focusing of vector beams with azimuthal polarization and beams with V-line of polarization uncertainty is simulated numerically using the Richards-Wolf formulas. It is demonstrated that at the sharp focus of these beams the longitudinal component of the electric field vector is zero. Previously, a similar effect was demonstrated only for azimuthally polarized beams. Also, the longitudinal component of the spin angular momentum of these beams is calculated and the possibility of creating sector azimuthally polarized beams using vector waveplates is shown.

Keywords: sharp focusing, vector beam, azimuthal polarization, spin angular momentum, magnetization

Received: 05.06.2023
Accepted: 05.07.2023

DOI: 10.18287/2412-6179-CO-1368



© Steklov Math. Inst. of RAS, 2025