Multidimensional multiplexing holography based on optical orbital angular momentum lattice multiplexing  

作　　者：Tian Xia Zhenwei Xie Xiaocong Yuan 

机构地区：[1]Shenzhen University,Institute of Microscale Optoelectronics,Nanophotonics Research Centre,State Key Laboratory of Radio Frequency Heterogeneous Integration,Shenzhen,China [2]Research Institute of Intelligent Sensing,Research Center for Humanoid Sensing,Zhejiang Lab,Hangzhou,China

出　　处：《Advanced Photonics Nexus》2024年第1期36-42,共7页先进光子学通讯（英文）

基　　金：supported by the Guangdong Major Project of Basic and Applied Basic Research (Grant No.2020B0301030009);the National Natural Science Foundation of China (Grant Nos.61935013,62375181,and 61975133);the Shenzhen Science and Technology Program (Grant No.JCYJ20200109114018750);the Shenzhen Peacock Plan (Grant No.KQTD20170330110444030).

摘　　要：The use of orbital angular momentum(OAM)as an independent dimension for information encryption has garnered considerable attention.However,the multiplexing capacity of OAM is limited,and there is a need for additional dimensions to enhance storage capabilities.We propose and implement orbital angular momentum lattice(OAML)multiplexed holography.The vortex lattice(VL)beam comprises three adjustable parameters:the rotation angle of the VL,the angle between the wave normal and the z axis,which determines the VL’s dimensions,and the topological charge.Both the rotation angle and the VL’s dimensions serve as supplementary encrypted dimensions,contributing azimuthally and radially,respectively.We investigate the mode selectivity of OAML and focus on the aforementioned parameters.Through experimental validation,we demonstrate the practical feasibility of OAML multiplexed holography across multiple dimensions.This groundbreaking development reveals new possibilities for the advancement of practical information encryption systems.

关 键 词：orbital angular momentum lattice multiplexed holography vortex lattice beam information encryption 

分 类 号：TN9[电子电信—信息与通信工程]