Silicon Metasurface Embedded Fabry-Perot Cavity Enables High Quality Transmission Structural Color

TL;DR

This paper introduces a silicon metasurface embedded Fabry-Perot cavity that achieves high-quality, high-resolution transmission structural colors with a large color gamut, enhanced angular tolerance, and polarization control for advanced optical applications.

Contribution

It presents a novel cavity design that significantly improves color gamut, resolution, and angular tolerance, enabling high-density, polarization-dependent color manipulation.

Findings

194% sRGB color gamut coverage

141111 DPI resolution

Over 300% improved angular tolerance

Abstract

While nanoscale color generations have been studied for years, the high performance transmission structural color, simultaneously equipped with large gamut, high resolution, and optical multiplexing abilities, still remains as a hanging issue. Here, a silicon metasurface embedded Fabry-P\'erot cavity is demonstrated to address this problem. By changing the planar geometries of metasurface units, the cavities provide transmission colors with 194% sRGB gamut coverage and 141111 DPI resolution, along with more than 300% enhanced angular tolerance. Such high density allows two-dimensional color mixing at diffraction limit scale. Beneficial from the polarization manipulation capacity of the metasurface, arbitrary color arrangements between cyan and red for two orthogonal linear polarizations are also realized. Our proposed cavities can be used in filters, printings, optical storages and many other applications in need of high quality and density colors.