Electrically Switchable, Polarization-Sensitive Encryption Based on Aluminum Nanoaperture Arrays Integrated with Polymer-Dispersed Liquid Crystals

Li，Ke1,2; Wang，Jiawei1; Cai，Wenfeng1; He，Huilin1,3; Cen，Mengjia1; Liu，Jianxun1; Luo，Dan1; Mu，Quanquan4; Gérard，Davy2; Liu，Yan Jun1,4,5

2021

10.1021/acs.nanolett.1c01947

NANO LETTERS   影响因子和分区

1530-6984

1530-6992

Metasurface-based structural coloration is a promising enabling technology for advanced optical encryption with a high-security level. Herein, we propose a paradigm of electrically switchable, polarization-sensitive optical encryption based on designed metasurfaces integrated with polymer-dispersed liquid crystals. The metasurfaces consist of anisotropic and isotropic aluminum nanoaperture arrays. Optical images can be encrypted by elaborately arranging anisotropic and isotropic nanoapertures based on their polarization-dependent plasmonic resonance characteristics. We demonstrate high-quality encrypted images and QR codes with electrically switchable, polarization-sensitive properties based on PDLC-integrated aluminum nanoaperture arrays. The proposed technique can be applied to many fields including high-security optical encryption, security tags, anticounterfeiting, multichannel imaging, and dynamic displays.

nanoaperture array polarized encryption polymer-dispersed liquid crystal Structural coloration surface plasmon

SCI ; EI

英语

NI论文

第一 ; 通讯

National Natural Science Foundation of China[62075093] ; China Postdoctoral Science Foundation[2020M672697] ; Guangdong Innovative and Entrepreneurial Research Team Program[2017ZT07C071] ; Natural Science Foundation of Guangdong Province[2019A1515110864] ; Shenzhen Science and Technology Innovation Commission["JCYJ20180305180635082","GJHZ20180928155207206","JCYJ20170817111349280"] ; Open Fund of State Key Laboratory of Applied Optics[SKLAO-201904]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000696095200013

AMER CHEMICAL SOC

20213710878020

Aluminum ; Anisotropy ; Geometrical optics ; Liquid crystal displays ; Liquid crystals ; Polarization

Aluminum:541.1 ; Light/Optics:741.1 ; Physical Properties of Gases, Liquids and Solids:931.2

MATERIALS SCIENCE

2-s2.0-85114406589

Scopus

1.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Light,Nanomaterials,Nanotechnologies (L2n),Université de Technologie de Troyes,Cnrs Erl 7004,Troyes,10004,France
3.Harbin Institute of Technology,Harbin,150001,China
4.State Key Laboratory of Applied Optics,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun,130033,China
5.Key Lab. of Ener. Conversion and Storage Technol. (Southern University of Science and Technology),Ministry of Education,Shenzhen,518055,China

Li，Ke,Wang，Jiawei,Cai，Wenfeng,et al. Electrically Switchable, Polarization-Sensitive Encryption Based on Aluminum Nanoaperture Arrays Integrated with Polymer-Dispersed Liquid Crystals[J]. NANO LETTERS,2021,21(17):7183-7190.

Li，Ke.,Wang，Jiawei.,Cai，Wenfeng.,He，Huilin.,Cen，Mengjia.,...&Liu，Yan Jun.(2021).Electrically Switchable, Polarization-Sensitive Encryption Based on Aluminum Nanoaperture Arrays Integrated with Polymer-Dispersed Liquid Crystals.NANO LETTERS,21(17),7183-7190.

Li，Ke,et al."Electrically Switchable, Polarization-Sensitive Encryption Based on Aluminum Nanoaperture Arrays Integrated with Polymer-Dispersed Liquid Crystals".NANO LETTERS 21.17(2021):7183-7190.