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

Abstract 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...

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Autores principales:	Zhancheng Li, Wenwei Liu, Hua Cheng, Shuqi Chen, Jianguo Tian
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5bdaade1b0eb4720b1e8996019104730
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spelling	oai:doaj.org-article:5bdaade1b0eb4720b1e89960191047302021-12-02T16:06:23ZSpin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces10.1038/s41598-017-08527-42045-2322https://doaj.org/article/5bdaade1b0eb4720b1e89960191047302017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08527-4https://doaj.org/toc/2045-2322Abstract 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.Zhancheng LiWenwei LiuHua ChengShuqi ChenJianguo TianNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhancheng Li Wenwei Liu Hua Cheng Shuqi Chen Jianguo Tian Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces
description	Abstract 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.
format	article
author	Zhancheng Li Wenwei Liu Hua Cheng Shuqi Chen Jianguo Tian
author_facet	Zhancheng Li Wenwei Liu Hua Cheng Shuqi Chen Jianguo Tian
author_sort	Zhancheng Li
title	Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces
title_short	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_sort	spin-selective transmission and devisable chirality in two-layer metasurfaces
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/5bdaade1b0eb4720b1e8996019104730
work_keys_str_mv	AT zhanchengli spinselectivetransmissionanddevisablechiralityintwolayermetasurfaces AT wenweiliu spinselectivetransmissionanddevisablechiralityintwolayermetasurfaces AT huacheng spinselectivetransmissionanddevisablechiralityintwolayermetasurfaces AT shuqichen spinselectivetransmissionanddevisablechiralityintwolayermetasurfaces AT jianguotian spinselectivetransmissionanddevisablechiralityintwolayermetasurfaces
_version_	1718385024560005120

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

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