基于手性超表面的太赫兹图像加密

IF 4.6 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Results in Physics Pub Date : 2025-10-16 DOI:10.1016/j.rinp.2025.108485

Shitong Song , Qingyang Liu , Linyun Luo , Limei Qi , Jun Yang , Zihui Gong , Zin Nandar Win

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引用次数: 0

摘要

图像作为一种流行的信息载体，在日常生活和生产中有着广泛的应用。随着信息技术的发展，人们对信息安全的关注日益增加，图像加密技术应运而生。metasursurface展示了卓越的电磁波操纵能力，确立了其作为图像安全加密平台的潜力。在这项工作中，实验证明了一种手性超表面在其原始和镜像配置中对圆极化波表现出完全相反的吸收特性。然后，利用多重干涉模型和例外点对手性超表面进行了理论分析。最后，根据不同的手性结构，设计了依赖偏振的超表面加密图像，实现了不同的太赫兹图像。

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Terahertz image encryption based on chiral metasurface

Images, as prevalent carriers of information, are widely applied in daily life and production. With the development of information technology, concerns over information security have risen, leading to the emergence of image encryption techniques. Metasurfaces demonstrate exceptional electromagnetic wave manipulation capabilities, establishing their potential as encryption platforms for image security. In this work, a chiral metasurface that exhibits completely opposite absorption characteristics for circularly polarized waves in its original and mirror-image configurations is experimentally demonstrated. Then, both the multiple interference model and exceptional point are used for theoretical analysis of the chiral metasurface. Finally, the polarized-dependent metasurface encryption image is designed to achieve different terahertz images based on the chiral structures.

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来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

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