Tunable hybrid metasurfaces for image quality enhancement

Metasurfaces created a new paradigm in the research of artificial electromagnetic structures owing to their potential to overcome many challenges typically associated with bulk metamaterials. However, a majority of demonstrated metasurface structures possess fixed properties, e.g. fixed operational bandwidth or functionality. An active control of metasurface functionalities and bandwidth is highly desirable for engineering an advanced electromagnetic and photonic devices. Here, we suggest and demonstrate experimentally a novel type of metasurface capable of dramatic enhancing the image quality.