Optical Encryption Based on Computer Generated Holograms in Photopolymer
1
Department of Precision Instrument, Tsinghua University, Beijing 100084, China
2
Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Sergi Gallego Rico
Polymers 2021, 13(9), 1358; https://doi.org/10.3390/polym13091358
Received: 11 March 2021
/
Revised: 19 April 2021
/
Accepted: 19 April 2021
/
Published: 21 April 2021
(This article belongs to the Section Polymer Applications)
An optical encryption method based on computer generated holograms printing of photopolymer is presented. Fraunhofer diffraction is performed based on the Gerchberg-Saxton algorithm, and a hologram of the Advanced Encryption Standard encrypted Quick Response code is generated to record the ciphertext. The holograms of the key and the three-dimensional image are generated by the angular spectrum diffraction algorithm. The experimental results show that large-size encrypted Quick Response (QR) code and miniature keys can be printed in photopolymers, which has good application prospects in optical encryption. This method has the advantages of high-density storage, high speed, large fault tolerance, and anti-peeping.
View Full-Text
Keywords:
optical encryption; photopolymer; computer holographic holograms printing; advanced encryption standard; Gerchberg-Saxton algorithm
▼
Show Figures
Graphical abstract
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Wu, T.; Ma, J.; Wang, C.; Wang, H.; Cao, L.; Su, P. Optical Encryption Based on Computer Generated Holograms in Photopolymer. Polymers 2021, 13, 1358. https://doi.org/10.3390/polym13091358
AMA Style
Wu T, Ma J, Wang C, Wang H, Cao L, Su P. Optical Encryption Based on Computer Generated Holograms in Photopolymer. Polymers. 2021; 13(9):1358. https://doi.org/10.3390/polym13091358
Chicago/Turabian StyleWu, Taihui, Jianshe Ma, Chengchen Wang, Haibei Wang, Liangcai Cao, and Ping Su. 2021. "Optical Encryption Based on Computer Generated Holograms in Photopolymer" Polymers 13, no. 9: 1358. https://doi.org/10.3390/polym13091358
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
