Exact derivation of the Dyadic Green’s functions of carbon nanotubes using microscopic theory

In this paper, a general theory for the electromagnetic fields interaction with nanotubes was formulated. The purpose was to replace current strategies that do not carefully distinguish between the macroscopic and microscopic Maxwell´s equations used in deriving the electrodynamics of nanotubes. A new approach was presented based on the symmetry group of the CNT. This avoided using the conventional, inaccurate, effective-boundary condition method of traditional electromagnetics. General expressions for the fields were derived using a susceptibility model. The new formulation was used to derive exact dyadic Green´s functions for a source and observation points located arbitrary around the CNT medium.