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Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces

Chirality is a nearly ubiquitous natural phenomenon. Its minute presence in most naturally occurring materials makes it incredibly difficult to detect. Recent advances in metasurfaces indicate that they exhibit devisable chirality in novel forms; this finding offers an effective opening for studying...

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Autores principales: Li, Zhancheng, Liu, Wenwei, Cheng, Hua, Chen, Shuqi, Tian, Jianguo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5557978/
https://www.ncbi.nlm.nih.gov/pubmed/28811649
http://dx.doi.org/10.1038/s41598-017-08527-4
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author Li, Zhancheng
Liu, Wenwei
Cheng, Hua
Chen, Shuqi
Tian, Jianguo
author_facet Li, Zhancheng
Liu, Wenwei
Cheng, Hua
Chen, Shuqi
Tian, Jianguo
author_sort Li, Zhancheng
collection PubMed
description Chirality is a nearly ubiquitous natural phenomenon. Its minute presence in most naturally occurring materials makes it incredibly difficult to detect. Recent advances in metasurfaces indicate that they exhibit devisable chirality in novel forms; this finding offers an effective opening for studying chirality and its features in such nanostructures. These metasurfaces display vast possibilities for highly sensitive chirality discrimination in biological and chemical systems. Here, we show that two-layer metasurfaces based on twisted nanorods can generate giant spin-selective transmission and support engineered chirality in the near-infrared region. Two designed metasurfaces with opposite spin-selective transmission are proposed for treatment as enantiomers and can be used widely for spin selection and enhanced chiral sensing. Specifically, we demonstrate that the chirality in these proposed metasurfaces can be adjusted effectively by simply changing the orientation angle between the twisted nanorods. Our results offer simple and straightforward rules for chirality engineering in metasurfaces and suggest intriguing possibilities for the applications of such metasurfaces in spin optics and chiral sensing.
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spelling pubmed-55579782017-08-18 Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces Li, Zhancheng Liu, Wenwei Cheng, Hua Chen, Shuqi Tian, Jianguo Sci Rep Article Chirality is a nearly ubiquitous natural phenomenon. Its minute presence in most naturally occurring materials makes it incredibly difficult to detect. Recent advances in metasurfaces indicate that they exhibit devisable chirality in novel forms; this finding offers an effective opening for studying chirality and its features in such nanostructures. These metasurfaces display vast possibilities for highly sensitive chirality discrimination in biological and chemical systems. Here, we show that two-layer metasurfaces based on twisted nanorods can generate giant spin-selective transmission and support engineered chirality in the near-infrared region. Two designed metasurfaces with opposite spin-selective transmission are proposed for treatment as enantiomers and can be used widely for spin selection and enhanced chiral sensing. Specifically, we demonstrate that the chirality in these proposed metasurfaces can be adjusted effectively by simply changing the orientation angle between the twisted nanorods. Our results offer simple and straightforward rules for chirality engineering in metasurfaces and suggest intriguing possibilities for the applications of such metasurfaces in spin optics and chiral sensing. Nature Publishing Group UK 2017-08-15 /pmc/articles/PMC5557978/ /pubmed/28811649 http://dx.doi.org/10.1038/s41598-017-08527-4 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
Li, Zhancheng
Liu, Wenwei
Cheng, Hua
Chen, Shuqi
Tian, Jianguo
Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces
title Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces
title_full Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces
title_fullStr Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces
title_full_unstemmed Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces
title_short Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces
title_sort spin-selective transmission and devisable chirality in two-layer metasurfaces
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5557978/
https://www.ncbi.nlm.nih.gov/pubmed/28811649
http://dx.doi.org/10.1038/s41598-017-08527-4
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