Transmission of Gaussian beam through a coated chiral cylinder

Abstract

Based on the generalized Lorenz–Mie theory (GLMT) framework, an exact analytical solution to the transmission of a Gaussian beam through a chiral cylinder with dielectric coating is formulated, by expanding the incident Gaussian beam, internal beam as well as scattered beam in terms of cylindrical vector wave functions (CVWFs). The unknown expansion coefficients are determined by a system of equations derived from the boundary conditions. For a localized beam model, numerical results of the normalized field intensity distributions are presented, and the propagation characteristics are discussed concisely.