Plasmonic metasurfaces are thin surfaces incorporating many metallic nanostructures of subwavelength dimensions. Such metasurfaces offer the ability to control and manipulate the various properties of light-beams (profile, shape, polarization, etc.) almost arbitrarily. This can be achieved by properly designing the shapes of various nanostructures comprising the metasurface to obtain a desired amplitude, phase and polarization response. Consequently, much research has been focused on plasmonic metasurfaces as a new paradigm and building block for various applications such as flat optics, holography, nano-imaging, beam shaping, and many more.
Our Group has demonstrated a novel approach for realizing wide angle, highly efficient and broadband holograms employing metallic scatterers. Currently we are working on new and exciting applications for metasurfaces such as dynamically reconfigurable metasurfaces for displays and LIDAR, on-chip particle accelerators, and sensors.
