Wei Zheng, Di Zhang, Hao Yuan, Nana Yu, Sixing Xi, Guilin Wang, Shuai Ma, Xiaolei Wang, Liying Lang. High capacity optical information encryption technology based on OAM holography and frequency shift[J]. Infrared and Laser Engineering, 2023, 52(7): 20230313
- Infrared and Laser Engineering
- Vol. 52, Issue 7, 20230313 (2023)
Fig. 1. Original image information
Fig. 2. Schematic diagram of spatial frequency and sampling array of spiral phase plates
Fig. 3. Sampling constants diagram of under different topological charges
Fig. 4. Schematic diagram of OAM-preserved hologram acquisition process
Fig. 5. Schematic diagram of OAM composite selective hologram acquisition process
Fig. 6. Schematic diagram of the decryption optical path
Fig. 7. Decryption result when
\begin{document}$m{\text{ = 1,\;2}}$\end{document}
Fig. 8. Decryption result when
\begin{document}$m{\text{ = 1}}$\end{document}
Fig. 9. Decryption result when
\begin{document}$m{\text{ = 2}}$\end{document}
Fig. 10. Decryption result when
\begin{document}$m \ne {\text{1,\;2}}$\end{document}
Fig. 11. Shear resistance simulation results
Fig. 12. Noise immunity simulation results
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Table 1. Correlation coefficient of original image and ciphertext image
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Table 2. Plaintext sensitivity analysis
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Table 3. Similarity of original image and decrypted image
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