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Multidimensional-Encrypted Meta-Optics Storage Empowered by Diffraction-Order Decoupling

delete2025-03-09
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PRE
AI
Z
Zirui Zhao
Z
Zejing Wang
Y
Yangyang Shi
S
Shuai Wan
Z
Zhongyang Li
DOI:10.1002/adma.202419322delete
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摘要

摘要

En 中文
近年来多维复用技术的最新进展为元光学加密成为下一代信息存储和加密安全的有效解决方案铺平了道路。然而,在同时增加调制维度并最小化结构复杂性的过程中仍存在挑战。本文提出了一种新颖的单单元阶解耦方法,用于实现多维加密元光学存储系统。通过分析不同衍射级次之间的相位数学关系,优化了绕行相位结构,以实现多个级次的独立编码自由度。所提出的多维加密元光学成功实现了四个光学维度的并发调制:i) 波长,ii) 波矢量方向,iii) 偏振,和 iv) 衍射级次。该系统实现了多达十六通道的元全息图,具有低串扰,并指数级提高了暴力解码的阈值,从而显著增强了光学存储中的信息安全。展望未来,基于片上超表面的多维加密策略有望为增强现实显示功能提供在光学加密/存储、防伪以及多功能光子集成电路中的应用前景。
Keyword:
AR holography
diffraction-order decoupling
multidimensional encryption
on-chip meta-display

期刊

Advanced Materials 封面图
Advanced Materials
IF:
26.8
论文数:
3.5W
被引数:
46.0W

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