Light‐controllable energy‐saving and control overhead‐saving metasurface based on photoresistor

Abstract

Intelligent metasurfaces are artificially engineered structures that can real‐time control electromagnetic (EM) waves. However, the manipulating ability is usually realized by adopting the wired electrical control method, which is effective and robust, but there are still some limitations. Here, we propose an energy‐efficient light‐controllable intelligent metasurface consisting of meta‐atoms with the ability to manipulate EM waves without energy consumption and control overhead. As demonstrated, the resistance‐based metasurface is illuminated under different strengths of illumination to generate different radiation patterns. The measured results show that the metasurface can well realize dynamic beam steering under different illumination conditions. The proposed intelligent metasurface establishes the connection between microwave and light, which could promote the development of related multiphysics applications, such as photoelectric reconfigurable intelligent surface and internet of things devices.