Open Access
3 January 2024 Multidimensional multiplexing holography based on optical orbital angular momentum lattice multiplexing
Tian Xia, Zhenwei Xie, Xiaocong Yuan
Author Affiliations +
Abstract

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.

CC BY: © The Authors. Published by SPIE and CLP under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Tian Xia, Zhenwei Xie, and Xiaocong Yuan "Multidimensional multiplexing holography based on optical orbital angular momentum lattice multiplexing," Advanced Photonics Nexus 3(1), 016005 (3 January 2024). https://doi.org/10.1117/1.APN.3.1.016005
Received: 10 October 2023; Accepted: 5 December 2023; Published: 3 January 2024
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CITATIONS
Cited by 2 scholarly publications.
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KEYWORDS
Holography

Holograms

Multiplexing

3D image reconstruction

Angular momentum

Spatial light modulators

Image encryption

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