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Encoding Mie, plasmonic, and diffractive structural colors in the same pixel
- Title
- Encoding Mie, plasmonic, and diffractive structural colors in the same pixel
- Authors
- Kim Y.; Hyun J.K.
- Ewha Authors
- 현가담
- SCOPUS Author ID
- 현가담
![scopus](/images/layout/icon2.png)
- Issue Date
- 2023
- Journal Title
- Nanophotonics
- ISSN
- 2192-8614
- Citation
- Nanophotonics vol. 12, no. 16, pp. 3341 - 3349
- Keywords
- diffraction; Mie resonance; multi-level encryption; plasmonic resonance; structural color
- Publisher
- De Gruyter Open Ltd
- Indexed
- SCOPUS
![scopus](/images/layout/scopus2.gif)
- Document Type
- Article
- Abstract
- We present a 1D reflective multi-level structural color design that incorporates Mie, plasmonic, and diffractive mechanisms in the same pixel. Comprised of a metallodielectric grating made of TiOx nanowires sandwiched between Ag thin film and Ag substrate, the design can exhibit either a Mie resonance or a localized plasmonic resonance depending on the polarization of incident light, resulting in dramatically different color states. Due to the periodicity, the grating also diffracts light, providing an additional color state. Since diffraction can be turned on or off by the degree of coherence of the incoming light, both Mie and plasmonic colors can be modulated using objective lenses with different numerical apertures. Exploiting the different color generating modes, we encode four layers of information in a pixel array, where each layer is unveiled using a different combination of excitation and imaging settings. These results introduce new possibilities for data encryption, anticounterfeiting, and data storage. © 2023 the author(s), published by De Gruyter, Berlin/Boston.
- DOI
- 10.1515/nanoph-2023-0254
- Appears in Collections:
- 자연과학대학 > 화학·나노과학전공 > Journal papers
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