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 high hue and saturation. We further show that a large gamut of colors can be achieved by selecting the appropriate length and width of individual $Si$ nanoantennas. Moreover, the proposed all-dielectric metasurface based color filters can be integrated with the well matured fabrication technology of electronic devices.

18 pages, 3 figures

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Cited by in corpus (6)

• Polarization tunable all-dielectric color filter based on cross-shaped Si nanoantennas
• All-Dielectric Metasurfaces Based on Cross-Shaped Resonators for Color Pixels with Extended Gamut
• All-dielectric thermonanophotonics
• Sub-micrometer Nanostructure-based RGB Filters for CMOS Image Sensors
• Terahertz reconfigurable multi-functional metamaterials based on 3D printed mortise-tenon structures
• Cutting corners to suppress high-order modes in Mie resonator arrays