An effective modified modeling of graphene interband conductivity

This paper proposes a modified mathematical model of graphene interband conductivity. The proposed modified model is similar to Drude model that can be easily applied for wideband modelling up to optical frequency range. This model can easily be superimposed with various computational methods especially in the finite difference time domain method (FDTD) for wideband applications. The effect of biasing chemical potential on the performance of modified conductivity model is analyzed. Validation of modified approach is also presented comparing with other existing interband conductivity models.