Effect of Grating Lattice Vector on Smith-Purcell Radiation

Abstract

Smith-Purcell radiation (SPR) is emitted when a charged particle flies over the surface of a periodic structure, and many studies on SPR based on metamaterials have emerged in recent years, such as controlling the direction of SP radiation through a split resonant ring [1] , enhancing the intensity of SPR through the BIC [2] , and controlling the polarization of SPR through bianisotropic materials [3] .