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Structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics
Recent advances in wavefront shaping have enabled complex classes of Structured Light which carry spin and orbital angular momentum, offering new tools for light-matter interaction, communications, and imaging. Controlling both components of angular momentum along the propagation direction can poten...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8556329/ https://www.ncbi.nlm.nih.gov/pubmed/34716326 http://dx.doi.org/10.1038/s41467-021-26253-4 |
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author | Dorrah, Ahmed H. Rubin, Noah A. Tamagnone, Michele Zaidi, Aun Capasso, Federico |
author_facet | Dorrah, Ahmed H. Rubin, Noah A. Tamagnone, Michele Zaidi, Aun Capasso, Federico |
author_sort | Dorrah, Ahmed H. |
collection | PubMed |
description | Recent advances in wavefront shaping have enabled complex classes of Structured Light which carry spin and orbital angular momentum, offering new tools for light-matter interaction, communications, and imaging. Controlling both components of angular momentum along the propagation direction can potentially extend such applications to 3D. However, beams of this kind have previously been realized using bench-top setups, requiring multiple interaction with light of a fixed input polarization, thus impeding their widespread applications. Here, we introduce two classes of metasurfaces that lift these constraints, namely: i) polarization-switchable plates that couple any pair of orthogonal polarizations to two vortices in which the magnitude and/or sense of vorticity vary locally with propagation, and ii) versatile plates that can structure both components of angular momentum, spin and orbital, independently, along the optical path while operating on incident light of any polarization. Compact and integrated devices of this type can advance light-matter interaction and imaging and may enable applications that are not accessible via other wavefront shaping tools. |
format | Online Article Text |
id | pubmed-8556329 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-85563292021-11-15 Structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics Dorrah, Ahmed H. Rubin, Noah A. Tamagnone, Michele Zaidi, Aun Capasso, Federico Nat Commun Article Recent advances in wavefront shaping have enabled complex classes of Structured Light which carry spin and orbital angular momentum, offering new tools for light-matter interaction, communications, and imaging. Controlling both components of angular momentum along the propagation direction can potentially extend such applications to 3D. However, beams of this kind have previously been realized using bench-top setups, requiring multiple interaction with light of a fixed input polarization, thus impeding their widespread applications. Here, we introduce two classes of metasurfaces that lift these constraints, namely: i) polarization-switchable plates that couple any pair of orthogonal polarizations to two vortices in which the magnitude and/or sense of vorticity vary locally with propagation, and ii) versatile plates that can structure both components of angular momentum, spin and orbital, independently, along the optical path while operating on incident light of any polarization. Compact and integrated devices of this type can advance light-matter interaction and imaging and may enable applications that are not accessible via other wavefront shaping tools. Nature Publishing Group UK 2021-10-29 /pmc/articles/PMC8556329/ /pubmed/34716326 http://dx.doi.org/10.1038/s41467-021-26253-4 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Dorrah, Ahmed H. Rubin, Noah A. Tamagnone, Michele Zaidi, Aun Capasso, Federico Structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics |
title | Structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics |
title_full | Structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics |
title_fullStr | Structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics |
title_full_unstemmed | Structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics |
title_short | Structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics |
title_sort | structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8556329/ https://www.ncbi.nlm.nih.gov/pubmed/34716326 http://dx.doi.org/10.1038/s41467-021-26253-4 |
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