Reprogrammable meta-hologram for optical encryption

Geyang Qu, Wenhong Yang, Qinghai Song, Yilin Liu, Cheng-Wei Qiu, Jiecai Han, Din-Ping Tsai () and Shumin Xiao ()
Additional contact information
Geyang Qu: Harbin Institute of Technology
Wenhong Yang: Harbin Institute of Technology
Qinghai Song: Harbin Institute of Technology
Yilin Liu: Harbin Institute of Technology
Cheng-Wei Qiu: National University of Singapore
Jiecai Han: Harbin Institute of Technology
Din-Ping Tsai: The Hong Kong Polytechnic University
Shumin Xiao: Harbin Institute of Technology

Nature Communications, 2020, vol. 11, issue 1, 1-5

Abstract: Abstract Meta-holographic encryption is a potentially important technique for information security. Despite rapid progresses in multi-tasked meta-holograms, the number of information channels available in metasurfaces is limited, making meta-holographic encryption vulnerable to some attacking algorithms. Herein, we demonstrate a re-programmable metasurface that can produce arbitrary holographic images for optical encryption. The encrypted information is divided into two matrices. These two matrices are imposed to the incident light and the metasurface, respectively. While the all-dielectric metasurface is static, the phase matrix of incident light provides additional degrees of freedom to precisely control the eventual functions at will. With a single Si metasurface, arbitrary holographic images and videos have been transported and decrypted. We hope that this work paves a more promising way to optical information encryption and authentication.

Date: 2020
References: Add references at CitEc
Citations: View citations in EconPapers (7)

Downloads: (external link)
https://www.nature.com/articles/s41467-020-19312-9 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19312-9

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-020-19312-9

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().