Gaussian beam scattering by an infinite cylinder with a spherical inclusion.

• Gaussian beam scattering by a sphere embedded in an infinitely long circular cylinder is presented. • The projection method is applied to the scattering problem. • Total scattered field and normalized field intensity distribution are calculated. An analytical method of analyzing the electromagnetic scattering of a Gaussian beam by an infinitely long circular cylinder with a spherical inclusion is presented. The fields within different regions are expanded in terms of appropriate cylindrical or spherical vector wave functions. By applying the integral representation of spherical vector wave functions over cylindrical ones, boundary conditions and projection procedure, the unknown expansion coefficients are determined. For a localized beam model, numerical results of the total scattered field and normalized field intensity distribution are shown, and the scattering properties are discussed briefly. [ABSTRACT FROM AUTHOR]