Optical secret sharing by multi-step liquid crystal planar doublet panning and coupling

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外文摘要：The hologram,which is formed by phases coupled through cascade devices for secret information sharing,still carries a cracking risk.We propose a liquid crystal planar doublet as the information carrier,and new holograms generated by the new coupled phases when the relative displacements of the different liquid crystal layers change.The designed geometrical phases are generated by an optimized iterative restoration algorithm,and each holographic image formed by these phases is readable.This scheme achieves an increase in the capacity of the stored secret information and provides more misdirection,which is expected to have potential value in optical steganography and storage.

外文关键词：

liquid crystalholographyoptical steganographydisplacementcoupled geometrical phase

作者：

莫之畅、陈壹、朱翔宇、张洲豪、李大伟、邵建达、赵元安、王建国

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作者单位：

Laboratory of Thin Film Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

Key Laboratory of Materials for High Power Laser,Chinese Academy of Sciences,Shanghai 201800,China

Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications,School of Physics,Henan Normal University,Xinxiang 453007,China

Hangzhou Institute for Advanced Study,University of Chinese Academy of Sciences,Hangzhou 310024,China

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基金：

Dr.Mengmeng Chai of Taiyuan University of TechnologyNational Natural Science Foundation of ChinaCAS Special Research Assistant Project,China Postdoctoral Science FoundationKey Foreign Cooperation Projects of Bureau of International Cooperation of Chinese Academy of SciencesCooperation Project with Hong Kong,MacaoScience and Technology Commission of Shanghai Municipality

项目编号：

520022712021M703326181231KYSB2021000122220760300

出版年：

2024

DOI：

10.3788/COL202422.080502

中国光学快报(英文版)

中国光学学会中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD

影响因子：1.305

ISSN：1671-7694

年,卷(期)：2024.22(8)