Color filter arrays based on dielectric metasurface elements
Open accessAbstract
Digital imaging has been steadily improving over the past decades and we are moving towards a wide use of multi- and hyperspectral cameras. A key component of such imaging systems are color filter arrays, which define the spectrum of light detected by each camera pixel. Hence, it is essential to develop a variable, robust and scalable way for controlling the transmission of light. Nanostructured surfaces, also known as metasurfaces, offer a promising solution as their transmission spectra can be controlled by shaping the wavelength-dependent scattering properties of their constituting elements. Here we present, metasurfaces based on silicon nanodisks, which provide filter functions with amplitudes reaching 70-90% of transmission, and well suitable for RGB and CMY color filter arrays, the initial stage towards the further development of hyperspectral filters. We suggest and discuss possible ways to expand the color gamut and improve the color values of such optical filters.
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Cascading multiple layers of the same filters to widen the gamut decreases the transmission efficiency and complicates the fabrication process.
“In [57], multiple layers of same filters in a cascaded configuration are used to widen the gamut; however, this technique will decrease the transmission efficiency and complicate the fabrication process.”
From Robust inverse design of all-dielectric metasurface transmission-mode color filters (2020) · cites this paper as [57]
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Cites
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Robust inverse design of all-dielectric metasurface transmission-mode color filters
Panda, S. S., Vyas, H. S., & Hegde, R. S. (2020) · Optical Materials Express · doi:10.1364/ome.409186 · Cited by 33 · see citing works
- Authors
- Berzins, J., Silvestri, F., Gerini, G., Setzpfandt, F., Pertsch, T., & Bäumer, S. M. B.
- Affiliations
- Netherlands Organisation for Applied Scientific Research (NL)
- Friedrich Schiller University Jena (DE)
- Venue
- Metamaterials XI
- Publisher
- SPIE
- Published
- 2018-05-14
- Pages
- 49
- OpenAlex
- W2809235157
- Cited by
- 4
- References
- 1
- Citations by year
- 2023: 2 · 2019: 2
- FWCI
- 2.16
- Type
- conference paper
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- SPIE Metamaterials Conference (publishedVersion)
- TU/e Research Portal (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- TU/e Research Portal (submittedVersion)
- TNO Repository (submittedVersion)
- Repository hosted by TU Delft Library (TU Delft) (submittedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion)
- arXiv (Cornell University)
- Funders
- European Commission (675745)
- Topics
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Metamaterials and Metasurfaces Applications
- Physical Sciences › Materials Science › Surfaces, Coatings and Films › Optical Coatings and Gratings
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Photonic Crystals and Applications
- Keywords
- color filter array, dielectric metasurfaces, silicon nanodisks, hyperspectral imaging, light transmission control, nanostructured surfaces, color gamut, optical filters
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