All-Dielectric Metasurfaces Based on Cross-Shaped Resonators for Color Pixels with Extended Gamut

Abstract : Printing technology based on plasmonic structures has many advantages over pigment based color printing such as high resolution, ultra-compact size and low power consumption. However, due to high losses and broad resonance behavior of metals in the visible spectrum, it becomes challenging to produce well-defined colors. Here, we investigate cross-shaped dielectric nanoresonators which enable high quality resonance in the visible spectral regime and, hence, high quality colors. We numerically predict and experimentally demonstrate that the proposed all-dielectric nanostructures exhibit high quality colors with selective wavelengths, in particular, due to lower losses as compared to metal based plasmonic filters. This results in fundamental colors (RGB) with
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Submitted on : Thursday, April 12, 2018 - 8:40:54 PM
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Vishal Vashistha, Gayatri Vaidya, Ravi S. Hegde, Andriy E Serebryannikov, Nicolas Bonod, et al.. All-Dielectric Metasurfaces Based on Cross-Shaped Resonators for Color Pixels with Extended Gamut. ACS photonics, American Chemical Society,, 2017, 4 (5), pp.1076 - 1082. ⟨10.1021/acsphotonics.6b00853⟩. ⟨hal-01571591⟩

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