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Human psychophysical discrimination of spatially dependant Pancharatnam–Berry phases in optical spin-orbit states
We tested the ability of human observers to discriminate distinct profiles of spatially dependant geometric phases when directly viewing stationary structured light beams. Participants viewed polarization coupled orbital angular momentum (OAM) states, or “spin-orbit” states, in which the OAM was ind...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8885666/ https://www.ncbi.nlm.nih.gov/pubmed/35228565 http://dx.doi.org/10.1038/s41598-022-07089-4 |
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author | Sarenac, D. Silva, A. E. Kapahi, C. Cory, D. G. Thompson, B. Pushin, D. A. |
author_facet | Sarenac, D. Silva, A. E. Kapahi, C. Cory, D. G. Thompson, B. Pushin, D. A. |
author_sort | Sarenac, D. |
collection | PubMed |
description | We tested the ability of human observers to discriminate distinct profiles of spatially dependant geometric phases when directly viewing stationary structured light beams. Participants viewed polarization coupled orbital angular momentum (OAM) states, or “spin-orbit” states, in which the OAM was induced through Pancharatnam–Berry phases. The coupling between polarization and OAM in these beams manifests as spatially dependant polarization. Regions of uniform polarization are perceived as specifically oriented Haidinger’s brushes, and study participants discriminated between two spin-orbit states based on the rotational symmetry in the spatial orientations of these brushes. Participants used self-generated eye movements to prevent adaptation to the visual stimuli. After initial training, the participants were able to correctly discriminate between two spin-orbit states, differentiated by OAM [Formula: see text] , with an average success probability of [Formula: see text] ([Formula: see text] , [Formula: see text] ). These results support our previous observation that human observers can directly perceive spin-orbit states, and extend this finding to non-rotating beams, OAM modes induced via Pancharatnam–Berry phases, and the discrimination of states that are differentiated by OAM. |
format | Online Article Text |
id | pubmed-8885666 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-88856662022-03-01 Human psychophysical discrimination of spatially dependant Pancharatnam–Berry phases in optical spin-orbit states Sarenac, D. Silva, A. E. Kapahi, C. Cory, D. G. Thompson, B. Pushin, D. A. Sci Rep Article We tested the ability of human observers to discriminate distinct profiles of spatially dependant geometric phases when directly viewing stationary structured light beams. Participants viewed polarization coupled orbital angular momentum (OAM) states, or “spin-orbit” states, in which the OAM was induced through Pancharatnam–Berry phases. The coupling between polarization and OAM in these beams manifests as spatially dependant polarization. Regions of uniform polarization are perceived as specifically oriented Haidinger’s brushes, and study participants discriminated between two spin-orbit states based on the rotational symmetry in the spatial orientations of these brushes. Participants used self-generated eye movements to prevent adaptation to the visual stimuli. After initial training, the participants were able to correctly discriminate between two spin-orbit states, differentiated by OAM [Formula: see text] , with an average success probability of [Formula: see text] ([Formula: see text] , [Formula: see text] ). These results support our previous observation that human observers can directly perceive spin-orbit states, and extend this finding to non-rotating beams, OAM modes induced via Pancharatnam–Berry phases, and the discrimination of states that are differentiated by OAM. Nature Publishing Group UK 2022-02-28 /pmc/articles/PMC8885666/ /pubmed/35228565 http://dx.doi.org/10.1038/s41598-022-07089-4 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Sarenac, D. Silva, A. E. Kapahi, C. Cory, D. G. Thompson, B. Pushin, D. A. Human psychophysical discrimination of spatially dependant Pancharatnam–Berry phases in optical spin-orbit states |
title | Human psychophysical discrimination of spatially dependant Pancharatnam–Berry phases in optical spin-orbit states |
title_full | Human psychophysical discrimination of spatially dependant Pancharatnam–Berry phases in optical spin-orbit states |
title_fullStr | Human psychophysical discrimination of spatially dependant Pancharatnam–Berry phases in optical spin-orbit states |
title_full_unstemmed | Human psychophysical discrimination of spatially dependant Pancharatnam–Berry phases in optical spin-orbit states |
title_short | Human psychophysical discrimination of spatially dependant Pancharatnam–Berry phases in optical spin-orbit states |
title_sort | human psychophysical discrimination of spatially dependant pancharatnam–berry phases in optical spin-orbit states |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8885666/ https://www.ncbi.nlm.nih.gov/pubmed/35228565 http://dx.doi.org/10.1038/s41598-022-07089-4 |
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