Surface plasmon polariton propagation modeling for graphene parallel pair sheets using FDTD

In this paper, a generalized approach of finite difference time domain (FDTD) modeling using surface boundary condition is presented for analyzing the properties of surface plasmon polaritons (SPPs) along straight and bent graphene parallel pairs. Incorporating intra-band conductivity into FDTD with perfectly matched layer absorbing boundary condition is used for SPP propagation modeling. Numerical results of straight and bent graphene parallel pairs for SPP propagation are provided to validate the proposed method.