From plasmonic nanostructure, toroidal metamaterial, reflective metasurface to holographic metadevice

In recent years, metamaterials/metasurfaces have attracted much attention due to their ability to manipulate electromagnetic waves in arbitrary frequency regions. In this paper, we report plasmonic metamaterials with unique optical responses, reflective and high-efficiency metasurfaces in the optical region, and a polarization-controlled meta-hologram. Our work has the potential to develop novel devices which are not limited by material composition