Design of polarization-dependent color filters based on all-dielectric metasurfaces for dynamic modulation of color HSV

Abstract

Color filters based on metasurfaces have been widely investigated due to their advantages of high efficiency, flexible transfer characteristics and compactness. Nowadays, most of them have been developed only for controlling color hue and the output of most color filters is fixed, while another two elements of the color, namely saturation and value, are rarely considered. However, color saturation and color value signifying attribute of visual perception are essential in optimizing color response of color filters, and developing color filters with controllable output can make color filter-based devices more flexible. Here, we propose three kinds of color filters based on all-dielectric metasurfaces to control color hue, saturation and value (HSV) at the visible region, respectively. Designed with principle of the magnetic resonances and the structural anisotropy, the output of proposed color filters could be dynamically modulated by changing polarization state of incident light. The proposed polarization-dependent color filters are expected to gain novel applications for security tags, polarization imaging and optical data storage.