Back to Search
Start Over
Tri-channel metasurface for watermarked structural-color nanoprinting and holographic imaging.
- Source :
-
Optics express [Opt Express] 2022 Oct 10; Vol. 30 (21), pp. 37554-37565. - Publication Year :
- 2022
-
Abstract
- Structural-color nanoprinting, which can generate vivid colors with spatial resolution at subwavelength level, possesses potential market in optical anticounterfeiting and information encryption. Herein, we propose an ultracompact metasurface with a single-cell design strategy to establish three independent information channels for simultaneous watermarked structural-color nanoprinting and holographic imaging. Dual-channel spectrum manipulation and single-channel phase manipulation are combined together by elaborately introducing the orientation degeneracy into the design of variable dielectric nanobricks. Hence, a structural-color nanoprinting image covered with polarization-dependent watermarks and a holographic image can be respectively generated under different decoded environments. The proposed metasurface shows a flexible method for tri-channel image display with high information capacity, and exhibits dual-mode anticounterfeiting with double safeguards, i.e., polarization-controlled watermarks and a far-field holographic image. This study provides a feasible route to develop multifunctional metasurfaces for applications including optical anticounterfeiting, information encryption and security, information multiplexing, etc.
Details
- Language :
- English
- ISSN :
- 1094-4087
- Volume :
- 30
- Issue :
- 21
- Database :
- MEDLINE
- Journal :
- Optics express
- Publication Type :
- Academic Journal
- Accession number :
- 36258342
- Full Text :
- https://doi.org/10.1364/OE.472789