Materials Today, Volume (62), Year (2023-1) , Pages (51-61)

Title : ( Tri-functional metasurface enhanced with a physically unclonable function )

Authors: Soroosh Daqiqeh Rezaei , Zhaogang Dong , Hao Wang , Jiahui Xu , Hongtao Wang , Mohammad Tavakkoli Yaraki , Ken Choon Hwa Goh , Wang Zhang , Shaban Reza Ghorbani , Xiaogang Liu , Joel K.W. Yang ,

Citation: BibTeX | EndNote

Abstract

In optical anti-counterfeiting, several distinct optically variable devices (OVDs) are often concurrently employed to compensate for the insufficient security level of constituent OVDs. Alternatively, metasurfaces that exhibit multiple optical responses effectively combine multiple OVDs into one, thus significantly enhancing their security and hindering fraudulent replication. This work demonstrates the simultaneous control of three separate optical responses, i.e., phase, amplitude, and luminescence, using anisotropic gap-plasmon metasurfaces. Due to the incorporated geometric anisotropy, the designed structure exhibits distinct responses under x- and y-polarized light, revealing either a color image, or a holographic projection in the far-field. Furthermore, inserting upconversion nanoparticles (UCNPs) into the dielectric gaps of the structures, the designed metasurface is able to generate a third luminescent image upon illumination with the near-infrared light. The stochastic distribution of the UCNPs constitutes a unique “fingerprint”, achieving a physically unclonable function (PUF) layer. Crucially, our triple-mode metasurface requires only readily attainable equipment such as a macro-lens/camera and a laser pointer to read most of the channels, thus paving the way towards highly secure and easy-to-authenticate metasurface-driven OVDs (mOVDs).

Keywords

, Structural color; Hologram; Luminescence enhancement; Upconversion enhancement; Optical, anticounterfeiting
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@article{paperid:1093671,
author = {سروش دقیقه رضایی and ژوگانگ دونگ and هاو ونگ and جیاهو ژو and هونگ تائو and محمد توکلی یارکی and هوا چو and وانگ ژنگ and Ghorbani, Shaban Reza and زیائو لیو and ژول یانگ},
title = {Tri-functional metasurface enhanced with a physically unclonable function},
journal = {Materials Today},
year = {2023},
volume = {62},
month = {January},
issn = {1369-7021},
pages = {51--61},
numpages = {10},
keywords = {Structural color; Hologram; Luminescence enhancement; Upconversion enhancement; Optical- anticounterfeiting},
}

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%0 Journal Article
%T Tri-functional metasurface enhanced with a physically unclonable function
%A سروش دقیقه رضایی
%A ژوگانگ دونگ
%A هاو ونگ
%A جیاهو ژو
%A هونگ تائو
%A محمد توکلی یارکی
%A هوا چو
%A وانگ ژنگ
%A Ghorbani, Shaban Reza
%A زیائو لیو
%A ژول یانگ
%J Materials Today
%@ 1369-7021
%D 2023

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