首页|Multi-dimensional multiplexing optical secret sharing framework with cascaded liquid crystal holograms

Multi-dimensional multiplexing optical secret sharing framework with cascaded liquid crystal holograms

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Secret sharing is a promising technology for information encryption by splitting the secret information into different shares.However,the traditional scheme suffers from information leakage in decryption process since the amount of available information channels is limited.Herein,we propose and demonstrate an optical secret sharing framework based on the multi-dimensional multiplexing liquid crystal(LC)holograms.The LC holograms are used as spatially sep-arated shares to carry secret images.The polarization of the incident light and the distance between different shares are served as secret keys,which can significantly improve the information security and capacity.Besides,the decryption condition is also restricted by the applied external voltage due to the variant diffraction efficiency,which further increases the information security.In implementation,an artificial neural network(ANN)model is developed to carefully design the phase distribution of each LC hologram.With the advantage of high security,high capacity and simple configuration,our optical secret sharing framework has great potentials in optical encryption and dynamic holographic display.

holographic encryptionoptical secret sharingcascaded liquid crystal hologrammulti-dimensional multiplexing

Keyao Li、Yiming Wang、Dapu Pi、Baoli Li、Haitao Luan、Xinyuan Fang、Peng Chen、Yanqing Lu、Min Gu

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Institute of Photonic Chips,University of Shanghai for Science and Technology,Shanghai 200093,China

Centre for Artificial-Intelligence Nanophotonics,School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China

National Laboratory of Solid State Microstructures,and College of Engineering and Applied Sciences,Nanjing University,Nanjing 210093,China

National Natural science Foundation of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaShanghai Natural Science FoundationShuguang Program of Shanghai Education Development Foundation and Shanghai Municipal Education CommissionYoung Elite Scientist Sponsorship Program by CASTScience and Technology Commission of Shanghai MunicipalityShanghai Municipal Science and Technology Major ProjectShanghai Frontiers Science Center Program(2021-2025 No.20)

6200516462222507621751016200516623ZR144370023SG412022004221DZ1100500

2024

10.29026/oea.2024.230121

光电进展(英文版)

光电进展(英文版)

EI
ISSN：
年,卷(期)：2024.7(1)
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