Microfluid-enabled fine tuning of circular dichroism from chiral metasurfaces

We propose and numerically demonstrate a microfluid-enabled spin-selective chiral metasurface with tunable circular dichroism. The chiral metasurface consists of periodic array of gammadion-like multilayer nanostructures. With the help of microfluidic technology, fine tuning of circular dichroism fr...

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Published in:Journal of physics. D, Applied physics Applied physics, 2019-10, Vol.52 (41), p.415102
Main Authors: Peng, Ruiheng, Liu, Jianxun, Xiao, Dong, Fang, Xiaoguo, Yin, Shengtao, Yin, Zhen, Huat Khoo, Eng, Luo, Dan, Jiang, Shouzhen, Dai, Haitao, Liu, Yan Jun
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Language:English
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circular dichroism
metasurface
microfluidics
tunable chirality
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cited_by cdi_FETCH-LOGICAL-c311t-be6005dd2a817698347dc1a9d5853d08734aae13e1c15b070b6475aa09c044383
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container_issue 41
container_start_page 415102
container_title Journal of physics. D, Applied physics
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creator Peng, Ruiheng
Liu, Jianxun
Xiao, Dong
Fang, Xiaoguo
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Huat Khoo, Eng
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Jiang, Shouzhen
Dai, Haitao
Liu, Yan Jun
description We propose and numerically demonstrate a microfluid-enabled spin-selective chiral metasurface with tunable circular dichroism. The chiral metasurface consists of periodic array of gammadion-like multilayer nanostructures. With the help of microfluidic technology, fine tuning of circular dichroism from the chiral metasurface can be achieved. Numerical results show that a broad tuning range of 40 nm can be achieved, while the circular dichroism only shows a slight decrease. Such a proposed device could be potentially useful for chirality detection, polarimetric imaging, and spin-communications.
doi_str_mv 10.1088/1361-6463/ab3129
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subjects circular dichroism
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microfluidics
tunable chirality
title Microfluid-enabled fine tuning of circular dichroism from chiral metasurfaces
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