Optical scanning cryptography system based on Light Spring

Zhengfeng Xu; Xusheng Zhuang; Aimin Yan

doi:10.1117/12.3036113

22 November 2024 Optical scanning cryptography system based on Light Spring

Zhengfeng Xu, Xusheng Zhuang, Aimin Yan

Author Affiliations +

Proceedings Volume 13240, Holography, Diffractive Optics, and Applications XIV; 1324025 (2024) https://doi.org/10.1117/12.3036113
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

Optical scanning cryptography (OSC) has garnered considerable attention because of its ability to acquire an incoherent hologram from a physical object using a single-pixel sensor. In this paper, we generate a new type of scanning pattern, named light spring (LS), using the two-pupil optical heterodyne scanning system. The light spring, which is characterized by helical structures for their phase and intensity profiles, can be built on the superposition of two distinct laser frequency components. An optical scanning cryptography scheme based on LS is proposed. The scheme expands the temporal characteristics of orbital angular momentum (OAM) multiplexing and improves the encryption capability, key space and security of the system.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhengfeng Xu, Xusheng Zhuang, and Aimin Yan "Optical scanning cryptography system based on Light Spring", Proc. SPIE 13240, Holography, Diffractive Optics, and Applications XIV, 1324025 (22 November 2024); https://doi.org/10.1117/12.3036113

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