Closed Form of Green Function for Some Types of Biaxial Anisotropic Media

Coordinates transformations relating the solutions of the Maxwell equations for two biaxial anisotropic media are investigated with the transformational optics method. The analysis of these media permits one to obtain the conversion formulas from the known Green function of a uniaxial dielectric medium to the Green function of a biaxial anisotropic medium with a single restriction on tensors permeability elements. It is obtained the relation between the Green functions of an arbitrary biaxial anisotropic dielectric medium and an anisotropic medium, in which a uniaxial anisotropy occurs in both permittivity and permeability with the constraint of their anisotropy axes misalignment.