A Research of Nonreciprocal Transmission of Graphene Defect

In this paper, modified transmission matrix method is used to construct one-dimensional multilayer composite membrane structure doped with graphene defect. The optimal construction can be found to realize reciprocity transmission by comparing the influence of the time inversion-symmetry and space inversion-symmetry doped on nonreciprocal transmission. The simulation results show that it cannot ensure the nonreciprocal transmission with rotatory material only. Nonreciprocal transmission should be designed through the structure damage of the space inversion-symmetry to realize it. The structure absorption peak position will move to the direction of the wavelength increase along with the increase of thickness of rotation media. The structure shows the approximate perfect absorption characteristics.