Laguerre Gaussian mode holography and its application in optical encryption

Furong Zhang, Ling Jun Kong, Zhuo Zhang, Jingfeng Zhang, Xiangdong Zhang

科研成果: 期刊稿件文章同行评审

14 引用 (Scopus)

摘要

Holography provides an approach to reconstructing both intensity and phase information, and has many applications for microscopic imaging, optical security, and data storage. Recently, the azimuthal Laguerre-Gaussian (LG) mode index, orbital angular momentum (OAM), has been implemented in holography technologies as an independent degree of freedom for high-security encryption. The radial index (RI) of LG mode, however, has not been implemented as an information carrier in holography. Here we propose and demonstrate the RI holography by using strong RI selectivity in the spatial-frequency domain. Furthermore, the LG holography is realized theoretically and experimentally with the (RI, OAM) spanning from (1, -15) to (7, 15), which leads to a 26bit LG-multiplexing hologram for high-security optical encryption. Based on LG holography, a high-capacity holographic information system can be constructed. In our experiments, a LG-multiplexing holography with a span of 217 independent LG channels has been realized, which is inaccessible at present for the OAM holography.

源语言英语
页(从-至)12922-12931
页数10
期刊Optics Express
31
8
DOI
出版状态已出版 - 10 4月 2023

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Zhang, F., Kong, L. J., Zhang, Z., Zhang, J., & Zhang, X. (2023). Laguerre Gaussian mode holography and its application in optical encryption. Optics Express, 31(8), 12922-12931. https://doi.org/10.1364/OE.488116