Reconfigurable characteristics of graphene plates.

In this paper, the potential of graphene in the design of reconfigurable nanoantennas is investigated based on the characteristic modes analysis approach. The characteristic modes (CMs) of a graphene plate are calculated by the electrical field integral equation technique. The effects of the dimensions and chemical potential of the graphene plate on the CMs are investigated.

Tunable strong circular dichroism in a non-chiral metallic metasurface integrated with graphene.

In this paper, we propose a non-chiral metasurface using an array of V-shaped silver nanostructures surrounded by two graphene sheets to obtain a tunable strong circular dichroism. The position of peaks and dips in the dichroism spectrum depends on the Fermi energy of graphene and can be tuned by changing Fermi energy. For Fermi energies larger than a specific value, stronger tunable circular dichroism is observed.