Photonic resonances in nanostructures have been exploited in reflective or transmission color filters, which can provide vivid\ncolors. Metallic nanostructures have been widely studied to demonstrate a variety of color filters based on strong light\ninteraction due to plasmonic resonances. However, because of the severe absorption loss of metal in visible light, dielectric\nnanoparticles having Mie resonances are a popular study focus in recent years to achieve vivid colors. In contrast to the behaviors\nof point-like electric dipole in metallic nanoparticle, the interplay of the electric and magnetic Mie resonances in dielectric\nnanoparticle enables a large degree of freedom in manipulating the directivity of light scattering, reflecting/transmitting color, and\nspontaneous emission rates. Here, we propose a color reflector based on an array of silicon nanoparticles that shows reflectance\ngreater than 70% and vivid colors over the entire visible spectrum range, which covers sRGB color area. Viewing angle\ndependencies of the color and brightness are also investigated by calculating color-resolved far-field patterns, while exhibiting\nmaintenance of the color and high reflectance over a broad viewing angle.
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