An All-Dielectric Color Filter, with a Wider Color Gamut

Due to their extraordinary abilities manipulate light propagation at the nanoscale, dielectric resonators that generate electric and magnetic Mie resonances for minimal optical loss have recently attracted great interest. Based on an all-dielectric metasurface, made of H-type silicon nanoarrays, this study proposed constructed a visible-wavelength-range color filter, with high-quality resonance ability synthesize new colors. Using finite-difference time-domain (FDTD) approach, we can create larger gamut by modifying array’s structural properties. The filter suggested has high saturation narrow bandwidth. be adjusted manipulating characteristics. By translating reflectance spectrum into coordinates using CIE1931 chromaticity diagram, wide range colors generated. This offers than other filters. We produced passband filters span visible resonator arrays, based nanoresonator. technology could many applications, including high-resolution printing, color-tunable switches, sensing systems.