摘要
Cascaded holography coupled with the secret-sharing scheme has recently gained considerable attention due to its enhanced information processing and encryption capabilities.Here,we propose a new holographic iterative algorithm and present the implementation of cascaded liquid crystal(LC)holography for optical encryption.Each LC layer acts as the secret key and can generate a distinct holographic image.By cascading two LC elements,a new holographic image is formed.Additionally,we showcase the dynamic optical encryption achieved by electrically switching LCs with combined electric keys.This work may offer promising applications in optical cryptography,all-optical computing,and data storage.
作者
王泽宇
张涵
刘筱姮
窦韵洁
段薇
陈伟
马玲玲
陆延青
Zeyu Wang;Han Zhang;Xiaoheng Liu;Yunjie Dou;Wei Duan;Wei Chen;Lingling Ma;Yanqing Lu(National Laboratory of Solid State Microstructures,Key Laboratory of Intelligent Optical Sensing and Manipulation,Collaborative Innovation Center of Advanced Microstructures,and College of Engineering and Applied Sciences,Nanjing University,Nanjing 210023,China;School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China)
基金
supported by the National Key Research and Development Program of China(Nos.2022YFA1405000 and 2021YFA1202000)
the National Natural Science Foundation of China(Nos.52003115,62375119,62305157,and 62005009)
the Natural Science Foundation of Jiangsu Province(No.BK20212004)
the support of Xiaomi Young Scholar Program
Young Elite Scientists Sponsorship Program by CAST(No.2022QNRC001).
