Phase transformation of a vortex beam in a liquid-based inferior mirage

Detalhes bibliográficos
Autor(a) principal: Cisowski, Claire Marie
Data de Publicação: 2020
Outros Autores: Correia, Ricardo Rego Bordalo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/218346
Resumo: We study how a liquid-based inferior mirage, obtained by layering distilled water and ethanol, transforms the phase structure of a light beam possessing a helical wave front. An inferior mirage amounts for one total internal reflection, which effectively reverses the handedness of the wave front. We show that this transformation is accompanied by smooth unidirectional astigmatic changes and variations of the non-canonical strength of the phase singularity nested in the beam. A skew in the beam intensity distribution is observed where the phase singularity is inverted and allows the direct measurement of the topological charge of the beam. Freely propagating, partially inverted beams possessing spatially varying orbital fluxes can be obtained at the exit plane of the solution by adjusting the incidence conditions of the beam. This work lays the foundations for phase engineering of light beams in liquid-based optical mirages.
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spelling Cisowski, Claire MarieCorreia, Ricardo Rego Bordalo2021-03-03T04:22:32Z20202040-8986http://hdl.handle.net/10183/218346001122050We study how a liquid-based inferior mirage, obtained by layering distilled water and ethanol, transforms the phase structure of a light beam possessing a helical wave front. An inferior mirage amounts for one total internal reflection, which effectively reverses the handedness of the wave front. We show that this transformation is accompanied by smooth unidirectional astigmatic changes and variations of the non-canonical strength of the phase singularity nested in the beam. A skew in the beam intensity distribution is observed where the phase singularity is inverted and allows the direct measurement of the topological charge of the beam. Freely propagating, partially inverted beams possessing spatially varying orbital fluxes can be obtained at the exit plane of the solution by adjusting the incidence conditions of the beam. This work lays the foundations for phase engineering of light beams in liquid-based optical mirages.application/pdfengJournal of optics. Bristol. Vol. 22, no. 12 (Dec. 2020), 125605, 8 p.Transformações de faseMiragemÓpticaOAMVortex beamMirage effectPhase transformation of a vortex beam in a liquid-based inferior mirageEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001122050.pdf.txt001122050.pdf.txtExtracted Texttext/plain29186http://www.lume.ufrgs.br/bitstream/10183/218346/2/001122050.pdf.txt583107cb04ac7404c9c339e1c49e1518MD52ORIGINAL001122050.pdfTexto completo (inglês)application/pdf2410611http://www.lume.ufrgs.br/bitstream/10183/218346/1/001122050.pdffe57f9695dda3494fc442c260d98edbfMD5110183/2183462024-09-12 06:01:00.972117oai:www.lume.ufrgs.br:10183/218346Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-09-12T09:01Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Phase transformation of a vortex beam in a liquid-based inferior mirage
title Phase transformation of a vortex beam in a liquid-based inferior mirage
spellingShingle Phase transformation of a vortex beam in a liquid-based inferior mirage
Cisowski, Claire Marie
Transformações de fase
Miragem
Óptica
OAM
Vortex beam
Mirage effect
title_short Phase transformation of a vortex beam in a liquid-based inferior mirage
title_full Phase transformation of a vortex beam in a liquid-based inferior mirage
title_fullStr Phase transformation of a vortex beam in a liquid-based inferior mirage
title_full_unstemmed Phase transformation of a vortex beam in a liquid-based inferior mirage
title_sort Phase transformation of a vortex beam in a liquid-based inferior mirage
author Cisowski, Claire Marie
author_facet Cisowski, Claire Marie
Correia, Ricardo Rego Bordalo
author_role author
author2 Correia, Ricardo Rego Bordalo
author2_role author
dc.contributor.author.fl_str_mv Cisowski, Claire Marie
Correia, Ricardo Rego Bordalo
dc.subject.por.fl_str_mv Transformações de fase
Miragem
Óptica
topic Transformações de fase
Miragem
Óptica
OAM
Vortex beam
Mirage effect
dc.subject.eng.fl_str_mv OAM
Vortex beam
Mirage effect
description We study how a liquid-based inferior mirage, obtained by layering distilled water and ethanol, transforms the phase structure of a light beam possessing a helical wave front. An inferior mirage amounts for one total internal reflection, which effectively reverses the handedness of the wave front. We show that this transformation is accompanied by smooth unidirectional astigmatic changes and variations of the non-canonical strength of the phase singularity nested in the beam. A skew in the beam intensity distribution is observed where the phase singularity is inverted and allows the direct measurement of the topological charge of the beam. Freely propagating, partially inverted beams possessing spatially varying orbital fluxes can be obtained at the exit plane of the solution by adjusting the incidence conditions of the beam. This work lays the foundations for phase engineering of light beams in liquid-based optical mirages.
publishDate 2020
dc.date.issued.fl_str_mv 2020
dc.date.accessioned.fl_str_mv 2021-03-03T04:22:32Z
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dc.identifier.issn.pt_BR.fl_str_mv 2040-8986
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dc.relation.ispartof.pt_BR.fl_str_mv Journal of optics. Bristol. Vol. 22, no. 12 (Dec. 2020), 125605, 8 p.
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