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All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances
Nanostructured magnetic materials provide an efficient tool for light manipulation on sub-nanosecond and sub-micron scales, and allow for the observation of the novel effects which are fundamentally impossible in smooth films. For many cases of practical importance, it is vital to observe the magnet...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7599251/ https://www.ncbi.nlm.nih.gov/pubmed/33127921 http://dx.doi.org/10.1038/s41467-020-19310-x |
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author | Ignatyeva, Daria O. Karki, Dolendra Voronov, Andrey A. Kozhaev, Mikhail A. Krichevsky, Denis M. Chernov, Alexander I. Levy, Miguel Belotelov, Vladimir I. |
author_facet | Ignatyeva, Daria O. Karki, Dolendra Voronov, Andrey A. Kozhaev, Mikhail A. Krichevsky, Denis M. Chernov, Alexander I. Levy, Miguel Belotelov, Vladimir I. |
author_sort | Ignatyeva, Daria O. |
collection | PubMed |
description | Nanostructured magnetic materials provide an efficient tool for light manipulation on sub-nanosecond and sub-micron scales, and allow for the observation of the novel effects which are fundamentally impossible in smooth films. For many cases of practical importance, it is vital to observe the magneto-optical intensity modulation in a dual-polarization regime. However, the nanostructures reported on up to date usually utilize a transverse Kerr effect and thus provide light modulation only for p-polarized light. We present a concept of a transparent magnetic metasurface to solve this problem, and demonstrate a novel mechanism for magneto-optical modulation. A 2D array of bismuth-substituted iron-garnet nanopillars on an ultrathin iron-garnet slab forms a metasurface supporting quasi-waveguide mode excitation. In contrast to plasmonic structures, the all-dielectric magnetic metasurface is shown to exhibit much higher transparency and superior quality-factor resonances, followed by a multifold increase in light intensity modulation. The existence of a wide variety of excited mode types allows for advanced light control: transmittance of both p- and s-polarized illumination becomes sensitive to the medium magnetization, something that is fundamentally impossible in smooth magnetic films. The proposed metasurface is very promising for sensing, magnetometry and light modulation applications. |
format | Online Article Text |
id | pubmed-7599251 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-75992512020-11-10 All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances Ignatyeva, Daria O. Karki, Dolendra Voronov, Andrey A. Kozhaev, Mikhail A. Krichevsky, Denis M. Chernov, Alexander I. Levy, Miguel Belotelov, Vladimir I. Nat Commun Article Nanostructured magnetic materials provide an efficient tool for light manipulation on sub-nanosecond and sub-micron scales, and allow for the observation of the novel effects which are fundamentally impossible in smooth films. For many cases of practical importance, it is vital to observe the magneto-optical intensity modulation in a dual-polarization regime. However, the nanostructures reported on up to date usually utilize a transverse Kerr effect and thus provide light modulation only for p-polarized light. We present a concept of a transparent magnetic metasurface to solve this problem, and demonstrate a novel mechanism for magneto-optical modulation. A 2D array of bismuth-substituted iron-garnet nanopillars on an ultrathin iron-garnet slab forms a metasurface supporting quasi-waveguide mode excitation. In contrast to plasmonic structures, the all-dielectric magnetic metasurface is shown to exhibit much higher transparency and superior quality-factor resonances, followed by a multifold increase in light intensity modulation. The existence of a wide variety of excited mode types allows for advanced light control: transmittance of both p- and s-polarized illumination becomes sensitive to the medium magnetization, something that is fundamentally impossible in smooth magnetic films. The proposed metasurface is very promising for sensing, magnetometry and light modulation applications. Nature Publishing Group UK 2020-10-30 /pmc/articles/PMC7599251/ /pubmed/33127921 http://dx.doi.org/10.1038/s41467-020-19310-x Text en © The Author(s) 2020 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/. |
spellingShingle | Article Ignatyeva, Daria O. Karki, Dolendra Voronov, Andrey A. Kozhaev, Mikhail A. Krichevsky, Denis M. Chernov, Alexander I. Levy, Miguel Belotelov, Vladimir I. All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances |
title | All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances |
title_full | All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances |
title_fullStr | All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances |
title_full_unstemmed | All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances |
title_short | All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances |
title_sort | all-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-q resonances |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7599251/ https://www.ncbi.nlm.nih.gov/pubmed/33127921 http://dx.doi.org/10.1038/s41467-020-19310-x |
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