Metasurfaces and Applications
Metallic or dielectric metasurfaces are ultra-thin and planar optical devices that promise not only to replace conventional optical components like lenses, mirrors, polarizers, waveplates, but also to be applied in practical photonic applications such as cloaking device, negative index device, metalens, metahologram, and color filter. We are designing and conducting experimental realization of those kinds of practical planar photonic devices such as 3D holographic display, multifunctional color filters and ultra-compact LiDAR. Furthermore, those two dimensional devices will revolutionize future display and sensing application such as reflective/projective displays and 3D object recognition (e.g. face ID and LiDAR).