Al衬底上折射率可调的a-Si:H/SiO2超表面的动态结构色

IF 2.6 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physics Letters A Pub Date : 2025-08-20 DOI:10.1016/j.physleta.2025.130913

Sibo Wang , Daqiang Cong , Tongshun Wang , Ruochen Zhao , Yang Gao

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引用次数: 0

摘要

本研究提出了一种基于非晶氢化硅（a- si:H）和二氧化硅（SiO2）的介电超表面设计。通过优化结构参数和利用对环境折射率变化的动态响应，该超表面在动态减色法结构颜色生成中实现了高饱和度和宽色域。该结构在一系列环境折射率中表现出明显的色差，并成功地证明了间歇性模式的不可见性。提出的元表面有望实现动态加密、防伪和信息显示应用，从而支持元表面技术的功能化和产业化。

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Dynamic structural color in refractive index-tunable a-Si:H/SiO2 metasurfaces on Al substrate

This study presents a dielectric metasurface design based on amorphous hydrogenated silicon (a-Si:H) and silicon dioxide (SiO₂). Through optimization structural parameters and exploitation of the dynamic response to environmental refractive index changes, the metasurface achieves both high saturation and a wide color gamut in dynamic subtractive structural color generation. The structure exhibits pronounced chromatic shifts across a range of the environmental refractive indices and successfully demonstrates intermittent pattern invisibility. The proposed metasurface holds promise for dynamic encryption, anti-counterfeiting, and information display applications, thus supporting the functionalization and industrialization of metasurface technology.

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来源期刊

Physics Letters A 物理-物理：综合

CiteScore

5.10

自引率

3.80%

发文量

493

审稿时长

30 days

期刊介绍： Physics Letters A offers an exciting publication outlet for novel and frontier physics. It encourages the submission of new research on: condensed matter physics, theoretical physics, nonlinear science, statistical physics, mathematical and computational physics, general and cross-disciplinary physics (including foundations), atomic, molecular and cluster physics, plasma and fluid physics, optical physics, biological physics and nanoscience. No articles on High Energy and Nuclear Physics are published in Physics Letters A. The journal''s high standard and wide dissemination ensures a broad readership amongst the physics community. Rapid publication times and flexible length restrictions give Physics Letters A the edge over other journals in the field.