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Assembling and Modeling Stacked Disordered Metasurfaces

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PRE
AI
M
Miao Chen
A
Amit Sharma
J
Johann Michler
X
Xavier Maeder
P
Philippe Lalanne
A
Angelos Xomalis *
DOI:10.1021/acs.nanolett.5c03172delete
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摘要

摘要

En 中文
无序超构表面具有周期性或有序超构表面无法实现的一些独特性质,特别是在特定波长和角度下缺乏确定性干涉效应。在本工作中,我们介绍了一种无光刻纳米制造方法,用于实现总厚度为亚微米级的级联无序等离激元超构表面。我们采用双向反射分布函数实验表征了它们的角分辨镜面反射和漫反射,并开发了即使在入射角较大时仍有效的精确理论模型。这些模型揭示了相干(镜面)散射与非相干(漫)散射之间复杂的相互作用,并展示了相干照明如何显著影响漫散射光的可视颜色。利用这一效应,我们实现了一种厘米级变色加密器件,其颜色根据其在直射光或漫射光下的观察条件而变化。我们的结果为基于堆叠无序超构表面的先进纳米光子平台奠定了基础,提供了传统多层薄膜技术或单层超构表面无法实现的多功能光学功能。
Keyword:
disordered metasurfaces
plasmonic metasurfaces
nanofabrication
diffuse scattering
chromo-encryption

期刊

Nano Letters 封面图
Nano Letters
IF:
9.1
论文数:
2.7W
被引数:
16.5W

机构

S
U
Université de Bordeaux
学者数:
692
论文数: 351
被引数: 2.5W
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