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Directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces
In this article, we demonstrate directional beaming of light from a metal nanoslit surrounded with phase-gradient metasurfaces on both sides. Distinct from the grating-based beaming structures, here the momentum mismatch between the surface wave and radiation wave is overcome by the phase-gradient m...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5608909/ https://www.ncbi.nlm.nih.gov/pubmed/28935881 http://dx.doi.org/10.1038/s41598-017-09726-9 |
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author | Zhu, Hua Yin, Xiang Chen, Lin Li, Xun |
author_facet | Zhu, Hua Yin, Xiang Chen, Lin Li, Xun |
author_sort | Zhu, Hua |
collection | PubMed |
description | In this article, we demonstrate directional beaming of light from a metal nanoslit surrounded with phase-gradient metasurfaces on both sides. Distinct from the grating-based beaming structures, here the momentum mismatch between the surface wave and radiation wave is overcome by the phase-gradient metasurfaces. The deviation angle of the directional beam can be flexibly adjusted by appropriately arranging the phase-gradient of metasurfaces on each side of the nanoslit. The metasurface-based beaming structures also present the ability to operate with high diffraction efficiency and small divergence angle, implying various potential applications in nanophotonics. |
format | Online Article Text |
id | pubmed-5608909 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-56089092017-10-20 Directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces Zhu, Hua Yin, Xiang Chen, Lin Li, Xun Sci Rep Article In this article, we demonstrate directional beaming of light from a metal nanoslit surrounded with phase-gradient metasurfaces on both sides. Distinct from the grating-based beaming structures, here the momentum mismatch between the surface wave and radiation wave is overcome by the phase-gradient metasurfaces. The deviation angle of the directional beam can be flexibly adjusted by appropriately arranging the phase-gradient of metasurfaces on each side of the nanoslit. The metasurface-based beaming structures also present the ability to operate with high diffraction efficiency and small divergence angle, implying various potential applications in nanophotonics. Nature Publishing Group UK 2017-09-21 /pmc/articles/PMC5608909/ /pubmed/28935881 http://dx.doi.org/10.1038/s41598-017-09726-9 Text en © The Author(s) 2017 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 Zhu, Hua Yin, Xiang Chen, Lin Li, Xun Directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces |
title | Directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces |
title_full | Directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces |
title_fullStr | Directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces |
title_full_unstemmed | Directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces |
title_short | Directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces |
title_sort | directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5608909/ https://www.ncbi.nlm.nih.gov/pubmed/28935881 http://dx.doi.org/10.1038/s41598-017-09726-9 |
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