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Nonparaxial Propagation of Bessel Correlated Vortex Beams in Free Space

The nonparaxial propagation of partially coherent beams carrying vortices in free space is investigated using the method of decomposition of the incident field into coherent diffraction-free modes. Modified Bessel correlated vortex beams with the wavefront curvature are introduced. Analytical expres...

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Autor principal: Petrov, Nikolai I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865740/
https://www.ncbi.nlm.nih.gov/pubmed/36677099
http://dx.doi.org/10.3390/mi14010038
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author Petrov, Nikolai I.
author_facet Petrov, Nikolai I.
author_sort Petrov, Nikolai I.
collection PubMed
description The nonparaxial propagation of partially coherent beams carrying vortices in free space is investigated using the method of decomposition of the incident field into coherent diffraction-free modes. Modified Bessel correlated vortex beams with the wavefront curvature are introduced. Analytical expressions are presented to describe the intensity distribution and the degree of coherence at different distances. The evolution of the intensity distribution during beam propagation for various source parameters is analyzed. The effects of nonparaxiality in the propagation of tightly focused coherent vortex beams are analyzed.
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spelling pubmed-98657402023-01-22 Nonparaxial Propagation of Bessel Correlated Vortex Beams in Free Space Petrov, Nikolai I. Micromachines (Basel) Article The nonparaxial propagation of partially coherent beams carrying vortices in free space is investigated using the method of decomposition of the incident field into coherent diffraction-free modes. Modified Bessel correlated vortex beams with the wavefront curvature are introduced. Analytical expressions are presented to describe the intensity distribution and the degree of coherence at different distances. The evolution of the intensity distribution during beam propagation for various source parameters is analyzed. The effects of nonparaxiality in the propagation of tightly focused coherent vortex beams are analyzed. MDPI 2022-12-23 /pmc/articles/PMC9865740/ /pubmed/36677099 http://dx.doi.org/10.3390/mi14010038 Text en © 2022 by the author. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Petrov, Nikolai I.
Nonparaxial Propagation of Bessel Correlated Vortex Beams in Free Space
title Nonparaxial Propagation of Bessel Correlated Vortex Beams in Free Space
title_full Nonparaxial Propagation of Bessel Correlated Vortex Beams in Free Space
title_fullStr Nonparaxial Propagation of Bessel Correlated Vortex Beams in Free Space
title_full_unstemmed Nonparaxial Propagation of Bessel Correlated Vortex Beams in Free Space
title_short Nonparaxial Propagation of Bessel Correlated Vortex Beams in Free Space
title_sort nonparaxial propagation of bessel correlated vortex beams in free space
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865740/
https://www.ncbi.nlm.nih.gov/pubmed/36677099
http://dx.doi.org/10.3390/mi14010038
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