INFLUENCE OF THE GRAPHENE SIZE ON THE ABSORPTION COEFFICIENT OF WEAK ELECTROMAGNETIC WAVE IN TWO-DIMENSIONAL GRAPHENE

Abstract

On the basis of the quantum kinetic equation has received analysing expressions for current density and absorption coefficient of electromagnetic wave in twodimenssional graphene (2D graphene) with electron- optical phonon scattering is dominant. The dependence of the absorption coefficient into the parameters characteristic
for the external wave field and the size parameters of graphene is very complex and nonlinear. The results are calculated, graphed proved well for theoretical results. The results are comparable to the case in the normal semiconductors indicating the difference, and results are new