High-security optical encryption based on single-pixel imaging and structured light multiplexing holography.

IF 3.1 2区 物理与天体物理 Q2 OPTICS
Optics letters Pub Date : 2025-04-01 DOI:10.1364/OL.557688
Sheng Wang, Zhenyu Zhang, Shangyin Zhou, Bijun Xu, Xiaogang Wang
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引用次数: 0

Abstract

The applications of single-pixel imaging (SPI) and optical multiplexing techniques in optical encryption are gradually increasing. However, little attention has been given to integrating these two for applications. Here, we propose a dual-layer optical encryption scheme that combines sample region-dependent SPI and structured light multiplexing holography. In the encryption process, the bucket signal obtained by SPI and the position coordinates used to generate the structured illumination patterns for SPI will be encrypted into a holographic ciphertext through spatial-structured light multiplexing holography. During decryption, the bucket signal can be retrieved from the ciphertext using a binary matrix key, and the sampling region can be determined by illuminating the ciphertext with multi-ramp helical-conical beams. Thus, the original secret image can be successfully decrypted. This work takes advantage of the spatial mode multiplexing characteristics of the structured beams and the dependence of Fourier SPI encryption on the sampling region, thereby promoting the collaborative application of the two in the field of optical security.

基于单像素成像和结构光复用全息的高安全性光加密。
单像素成像(SPI)和光复用技术在光加密中的应用日益增多。然而,很少有人关注将这两者集成到应用程序中。在这里,我们提出了一种结合了样本区域相关SPI和结构光复用全息的双层光学加密方案。在加密过程中,通过空间结构光复用全息,将SPI获得的桶信号和用于为SPI生成结构化照明图案的位置坐标加密为全息密文。在解密过程中,可以使用二进制矩阵密钥从密文中检索桶信号,并通过多坡道螺旋锥光束照射密文来确定采样区域。这样,原始的秘密图像就可以被成功解密。本工作利用了结构光束的空间模复用特性和傅立叶SPI加密对采样区域的依赖性,从而促进了两者在光安全领域的协同应用。
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来源期刊
Optics letters
Optics letters 物理-光学
CiteScore
6.60
自引率
8.30%
发文量
2275
审稿时长
1.7 months
期刊介绍: The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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