Analytical description of optical vortices generated by discretized vortex-producing lenses

In this article, a general analytical treatment (any topological charge - any number of discretization levels) for the diffraction of a Gaussian beam through a discretized vortex-producing lens is presented. In the proposal, the field is expressed as a sum of Kummer beams with different amplitudes a...

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Autores principales: Rumi, Gonzalo Agustín, Actis, Daniel Guillermo, Amaya Robayo, Dafne Cecilia, Gómez, Jorge A., Rueda, Edgar, Lencina, Alberto Germán
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Ciencias Exactas
Física
Ingeniería
Optical vortex
Kummer beam
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100476
https://ri.conicet.gov.ar/11336/89430
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.97.063813
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SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-100476
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Ingeniería
Optical vortex
Kummer beam
spellingShingle Ciencias Exactas
Física
Ingeniería
Optical vortex
Kummer beam
Rumi, Gonzalo Agustín
Actis, Daniel Guillermo
Amaya Robayo, Dafne Cecilia
Gómez, Jorge A.
Rueda, Edgar
Lencina, Alberto Germán
Analytical description of optical vortices generated by discretized vortex-producing lenses
topic_facet Ciencias Exactas
Física
Ingeniería
Optical vortex
Kummer beam
description In this article, a general analytical treatment (any topological charge - any number of discretization levels) for the diffraction of a Gaussian beam through a discretized vortex-producing lens is presented. In the proposal, the field is expressed as a sum of Kummer beams with different amplitudes and topological charges, which are focalized at different planes on the propagation axis. Likewise, it is demonstrated that characteristics of diffracted light can be modified by tuning the parameters of the setup. Vortex lines are analyzed to understand the internal mechanism of measurable topological charges that appear in specific planes, apparently violating topological charge conservation. Conservation of the topological charge is verified and theoretical predictions are supported by experiments.
format Articulo
Articulo
author Rumi, Gonzalo Agustín
Actis, Daniel Guillermo
Amaya Robayo, Dafne Cecilia
Gómez, Jorge A.
Rueda, Edgar
Lencina, Alberto Germán
author_facet Rumi, Gonzalo Agustín
Actis, Daniel Guillermo
Amaya Robayo, Dafne Cecilia
Gómez, Jorge A.
Rueda, Edgar
Lencina, Alberto Germán
author_sort Rumi, Gonzalo Agustín
title Analytical description of optical vortices generated by discretized vortex-producing lenses
title_short Analytical description of optical vortices generated by discretized vortex-producing lenses
title_full Analytical description of optical vortices generated by discretized vortex-producing lenses
title_fullStr Analytical description of optical vortices generated by discretized vortex-producing lenses
title_full_unstemmed Analytical description of optical vortices generated by discretized vortex-producing lenses
title_sort analytical description of optical vortices generated by discretized vortex-producing lenses
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/100476
https://ri.conicet.gov.ar/11336/89430
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.97.063813
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