Phase-only transmissive spatial light modulator based on tunable dielectric metasurface

Abstract

Dynamic metasurfaces Nanostructured metasurfaces can function as many passive optical elements. Now, S.-Q. Li et al. demonstrate that metasurfaces can be combined with liquid crystals to provide active control over light beams. With a view toward developing near-eye augmented reality display technology, they combined a dielectric metasurface with a liquid crystal layer to produce a tiny spatial light modulator. The results present a path for the development of dynamic metasurfaces as a platform for miniaturized optical technology with advanced time-dependent functionality. Science , this issue p. 1087