Modeling of stratified graphene-dielectric structures using the generalized boundary conditions: THz wave scattering by a thin sandwiched disk

We consider a modeling technique of stratified graphene-dielectric structures which is based on the effective two-side generalized boundary conditions (GBC). We obtain an effective GBC for graphene-dielectric, graphene-dielectric-graphene and dielectric-graphene-dielectric sandwiched-like layers and structures. Dielectric parameters and the graphene surface conductivity (determined from the Kubo formalism) are involved in electrical and magnetic resistivities of GBC as parameters. The scattering of the 3D electromagnetic field by a graphene-dielectric-graphene disk is studied numerically. We demonstrate the resonance behavior of radiated power for the on-axis horizontal magnetic dipole in the presence of such disk. It is shown that the resonance frequencies shift with variation of the chemical magnetic potential of the graphene.