Methods and efficiency of control of dispersion of electromagnetic waves in the waveguiding structure based on carbon nanotube-graphene at terahertz and infrared frequency ranges

The mathematical modeling of propagation of electromagnetic waves in waveguiding structures based on carbon nanotube - graphene at terahertz and infrared frequency ranges by solving the Maxwell’s equations with electrodynamic boundary conditions, complemented by the constitutive laws for carbon nanotubes and the grapheme, was done. Using method of autonomous blocks with Floquet channels the electrodynamic calculation of coefficients of delay and extinction of the fundamental mode in waveguiding structures based on carbon nanotube - graphene carbon nanotube with various radius ( r = 25-2 nm) and the distance between carbon nanotube and graphene) depending on the frequency were obtained for different values of chemical potential (the external electric field intensity) at terahertz and near infrared frequency ranges.