Mathematical modeling of diffraction of tem-wave on the periodic 2D structures of graphene micro-ribbons with finite length at terahertz frequency range

The mathematical simulation of diffraction of TEM-wave on the periodic 2D structures of graphene micro-ribbons with finite length is performed using the computational algorithm developed by projection method for the normal incident TEM-wave at terahertz frequency range.The results of electrodynamic calculation of the transmission coefficient for the TEM mode through the graphene micro- and nanoribbons with finite length depending on the frequency were obtained for different values of chemical potential (the external electric field) for different sizes of ribbons and the periodicity of the array.