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Vertical split-ring resonator based anomalous beam steering with high extinction ratio
Metasurfaces created artificially with metal nanostructures that are patterned on surfaces of different media have shown to possess “unusual” abilities to manipulate light. Limited by nanofabrication difficulties, so far most reported works have been based on 2D metal structures. We have recently de...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4459221/ https://www.ncbi.nlm.nih.gov/pubmed/26054048 http://dx.doi.org/10.1038/srep11226 |
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author | Hsu, Wei-Lun Wu, Pin Chieh Chen, Jia-Wern Chen, Ting-Yu Cheng, Bo Han Chen, Wei Ting Huang, Yao-Wei Liao, Chun Yen Sun, Greg Tsai, Din Ping |
author_facet | Hsu, Wei-Lun Wu, Pin Chieh Chen, Jia-Wern Chen, Ting-Yu Cheng, Bo Han Chen, Wei Ting Huang, Yao-Wei Liao, Chun Yen Sun, Greg Tsai, Din Ping |
author_sort | Hsu, Wei-Lun |
collection | PubMed |
description | Metasurfaces created artificially with metal nanostructures that are patterned on surfaces of different media have shown to possess “unusual” abilities to manipulate light. Limited by nanofabrication difficulties, so far most reported works have been based on 2D metal structures. We have recently developed an advanced e-beam process that allowed for the deposition of 3D nanostructures, namely vertical split-ring resonators (VSRRs), which opens up another degree of freedom in the metasurface design. Here we explore the functionality of beam steering with phase modulation by tuning only the vertical dimension of the VSRRs and show that anomalous steering reflection of a wide range of angles can be accomplished with high extinction ratio using the finite-difference-time-domain simulation. We also demonstrate that metasurfaces made of 3D VSRRs can be made with roughly half of the footprint compared to that of 2D nano-rods, enabling high density integration of metal nanostructures. |
format | Online Article Text |
id | pubmed-4459221 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44592212015-06-17 Vertical split-ring resonator based anomalous beam steering with high extinction ratio Hsu, Wei-Lun Wu, Pin Chieh Chen, Jia-Wern Chen, Ting-Yu Cheng, Bo Han Chen, Wei Ting Huang, Yao-Wei Liao, Chun Yen Sun, Greg Tsai, Din Ping Sci Rep Article Metasurfaces created artificially with metal nanostructures that are patterned on surfaces of different media have shown to possess “unusual” abilities to manipulate light. Limited by nanofabrication difficulties, so far most reported works have been based on 2D metal structures. We have recently developed an advanced e-beam process that allowed for the deposition of 3D nanostructures, namely vertical split-ring resonators (VSRRs), which opens up another degree of freedom in the metasurface design. Here we explore the functionality of beam steering with phase modulation by tuning only the vertical dimension of the VSRRs and show that anomalous steering reflection of a wide range of angles can be accomplished with high extinction ratio using the finite-difference-time-domain simulation. We also demonstrate that metasurfaces made of 3D VSRRs can be made with roughly half of the footprint compared to that of 2D nano-rods, enabling high density integration of metal nanostructures. Nature Publishing Group 2015-06-08 /pmc/articles/PMC4459221/ /pubmed/26054048 http://dx.doi.org/10.1038/srep11226 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Hsu, Wei-Lun Wu, Pin Chieh Chen, Jia-Wern Chen, Ting-Yu Cheng, Bo Han Chen, Wei Ting Huang, Yao-Wei Liao, Chun Yen Sun, Greg Tsai, Din Ping Vertical split-ring resonator based anomalous beam steering with high extinction ratio |
title | Vertical split-ring resonator based anomalous beam steering with high extinction ratio |
title_full | Vertical split-ring resonator based anomalous beam steering with high extinction ratio |
title_fullStr | Vertical split-ring resonator based anomalous beam steering with high extinction ratio |
title_full_unstemmed | Vertical split-ring resonator based anomalous beam steering with high extinction ratio |
title_short | Vertical split-ring resonator based anomalous beam steering with high extinction ratio |
title_sort | vertical split-ring resonator based anomalous beam steering with high extinction ratio |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4459221/ https://www.ncbi.nlm.nih.gov/pubmed/26054048 http://dx.doi.org/10.1038/srep11226 |
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