Tunable Colors on Flexible Photonic Metastructures

摘要

Synthetic skin that can change color on demand, like a chameleon's, has been highly desired for camouflage, display, sensing and other applications. One approach to that goal is structural coloration, which uses microscopically structured material to split the color. Efforts have been made to use the accumulative optical interference across multiple layers to provide a desired color, which is changed by varying the thickness of the material.1