Pixelated bifunctional metasurface-driven dynamic vectorial holographic color prints for photonic security platform

Inki Kim, Jaehyuck Jang, Gyeongtae Kim, Jihae Lee, Trevon Badloe, Jungho Mun and Junsuk Rho ()
Additional contact information
Inki Kim: Pohang University of Science and Technology (POSTECH)
Jaehyuck Jang: Pohang University of Science and Technology (POSTECH)
Gyeongtae Kim: Pohang University of Science and Technology (POSTECH)
Jihae Lee: Pohang University of Science and Technology (POSTECH)
Trevon Badloe: Pohang University of Science and Technology (POSTECH)
Jungho Mun: Pohang University of Science and Technology (POSTECH)
Junsuk Rho: Pohang University of Science and Technology (POSTECH)

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract Vectorial holography has gained a lot of attention due to the promise of versatile polarization control of structured light for enhanced optical security and multi-channel optical communication. Here, we propose a bifunctional metasurface which combines both structural color printing and vectorial holography with eight polarization channels towards advanced encryption applications. The structural colour prints are observed under white light while the polarization encoded holograms are reconstructed under laser illumination. To encode multiple holographic images for different polarization states, a pixelated metasurface is adopted. As a proof-of-concept, we devise an electrically tunable optical security platform incorporated with liquid crystals. The optical security platform is doubly encrypted: an image under white light is decrypted to provide the first key and the corresponding information is used to fully unlock the encrypted information via projected vectorial holographic images. Such an electrically tunable optical security platform may enable smart labels for security and anticounterfeiting applications.

Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
https://www.nature.com/articles/s41467-021-23814-5 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:12:y:2021:i:1:d:10.1038_s41467-021-23814-5

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

DOI: 10.1038/s41467-021-23814-5

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 ().