Fig. 2From: Recent advances in multi-dimensional metasurfaces holographic technologiesColor holography based on metasurfaces. a Illustration of the polarization-controlled color hologram. The color of the reconstructed images can be tuned by changing the polarization of incident light [67]. b Schematic illustrations of the transmitted 6-bit metasurface consists of silicon nanobricks arrays with spatially varying orientations on a quartz substrate [65]Back to article page