Multiparameter encrypted orbital angular momentum multiplexed holography based on multiramp helicoconical beams  

作　　者：Nian Zhang Baoxing Xiong Xiang Zhang Xiao Yuan 

机构地区：[1]Soochow University,School of Optoelectronic Science and Engineering,Suzhou,China [2]Soochow University,Collaborative Innovation Center of Suzhou Nano Science and Technology,Suzhou,China [3]Soochow University,Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province,Suzhou,China [4]Soochow University,Key Lab of Modern Optical Technologies of Education Ministry of China,Suzhou,China

出　　处：《Advanced Photonics Nexus》2023年第3期121-131,共11页先进光子学通讯（英文）

基　　金：supported by the National Natural Science Foundation of China(Grant No.61775153);the Priority Academic Program Development of Jiangsu Higher Education Institutions.

摘　　要：Optical orbital angular momentum(OAM)multiplexed holography has been implemented as an effective method for information encryption and storage.Multiramp helicoconical-OAM multiplexed holography is proposed and experimentally implemented.The mode selectivity of the multiramp mixed screw-edge dislocations,constant parameter K,and normalized factor are investigated,respectively,which demonstrates that those parameters can be used as additional coding degrees of freedom for holographic multiplexing.The combination of the topological charge and the other three parameters can provide a four-dimensional multiplexed holography and can enhance information capacity.

关 键 词：orbital angular momentum multiplexed holography multiramp helicoconical beams multiple-dimensional multiplexing information encryption 

分 类 号：TB8[一般工业技术—摄影技术]