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

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 disl...

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Bibliographic Details
Published inAdvanced Photonics Nexus Vol. 2; no. 3; p. 036013
Main Authors Zhang, Nian, Xiong, Baoxing, Zhang, Xiang, Yuan, Xiao
Format Journal Article
LanguageEnglish
Published SPIE 01.05.2023
Subjects
Holography
Technology application
China
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Summary: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.
ISSN:2791-1519
2791-1519
DOI:10.1117/1.APN.2.3.036013