Broadband Tunable Terahertz Absorber Based on Graphene Metasurface

In this paper, a broadband and electrically tunable terahertz absorber based on single-layer graphene metasurface was designed and simulated. The numerical simulation results show that the absorption bandwidth of more than 95% absorption is as broad as 2.046 THz, and the working frequency can be dynamically controlled by changing structural parameters and the chemical potential of graphene.