Giant circular dichroism of large-area extrinsic chiral metal nanocrecents

Abstract In this work, we demonstrate the strong extrinsic chirality of the larger-area metal nanocrescents by experiments and simulations. Our results show that the metal nanocrescent exhibits giant and tunable circular dichroism (CD) effect, which is intensively dependent on the incident angle of...

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Autores principales:	Yane Wang, Jiwei Qi, Chongpei Pan, Qiang Wu, Jianghong Yao, Zongqiang Chen, Jing Chen, Yudong Li, Xuanyi Yu, Qian Sun, Jingjun Xu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6de01279ceaf4b148ff944768366df2b
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spelling	oai:doaj.org-article:6de01279ceaf4b148ff944768366df2b2021-12-02T15:08:06ZGiant circular dichroism of large-area extrinsic chiral metal nanocrecents10.1038/s41598-018-21627-z2045-2322https://doaj.org/article/6de01279ceaf4b148ff944768366df2b2018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-21627-zhttps://doaj.org/toc/2045-2322Abstract In this work, we demonstrate the strong extrinsic chirality of the larger-area metal nanocrescents by experiments and simulations. Our results show that the metal nanocrescent exhibits giant and tunable circular dichroism (CD) effect, which is intensively dependent on the incident angle of light. We attribute the giant extrinsic chirality of the metal nanocrescent to the excitation efficiencies difference of localized surface plasmon resonance (LSPR) modes for two kinds of circularly polarized light at a non-zero incident angle. In experiment, the largest CD of 0.37 is obtained at the wavelength of 826 nm with the incident angle of 60°. Furthermore, the CD spectra can be tuned flexibly by changing the metal nanocrescent diameter. Benefitting from the simple, low-cost and mature fabrication process, the proposed large-area metal nanocrescents are propitious to application.Yane WangJiwei QiChongpei PanQiang WuJianghong YaoZongqiang ChenJing ChenYudong LiXuanyi YuQian SunJingjun XuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yane Wang Jiwei Qi Chongpei Pan Qiang Wu Jianghong Yao Zongqiang Chen Jing Chen Yudong Li Xuanyi Yu Qian Sun Jingjun Xu Giant circular dichroism of large-area extrinsic chiral metal nanocrecents
description	Abstract In this work, we demonstrate the strong extrinsic chirality of the larger-area metal nanocrescents by experiments and simulations. Our results show that the metal nanocrescent exhibits giant and tunable circular dichroism (CD) effect, which is intensively dependent on the incident angle of light. We attribute the giant extrinsic chirality of the metal nanocrescent to the excitation efficiencies difference of localized surface plasmon resonance (LSPR) modes for two kinds of circularly polarized light at a non-zero incident angle. In experiment, the largest CD of 0.37 is obtained at the wavelength of 826 nm with the incident angle of 60°. Furthermore, the CD spectra can be tuned flexibly by changing the metal nanocrescent diameter. Benefitting from the simple, low-cost and mature fabrication process, the proposed large-area metal nanocrescents are propitious to application.
format	article
author	Yane Wang Jiwei Qi Chongpei Pan Qiang Wu Jianghong Yao Zongqiang Chen Jing Chen Yudong Li Xuanyi Yu Qian Sun Jingjun Xu
author_facet	Yane Wang Jiwei Qi Chongpei Pan Qiang Wu Jianghong Yao Zongqiang Chen Jing Chen Yudong Li Xuanyi Yu Qian Sun Jingjun Xu
author_sort	Yane Wang
title	Giant circular dichroism of large-area extrinsic chiral metal nanocrecents
title_short	Giant circular dichroism of large-area extrinsic chiral metal nanocrecents
title_full	Giant circular dichroism of large-area extrinsic chiral metal nanocrecents
title_fullStr	Giant circular dichroism of large-area extrinsic chiral metal nanocrecents
title_full_unstemmed	Giant circular dichroism of large-area extrinsic chiral metal nanocrecents
title_sort	giant circular dichroism of large-area extrinsic chiral metal nanocrecents
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/6de01279ceaf4b148ff944768366df2b
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Giant circular dichroism of large-area extrinsic chiral metal nanocrecents

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