Reflectance and transmittance of a uniaxial thin film with the optic axis perpendicular to the surface

This paper produce formulae for the power reflection and transmission coefficients of a uniaxial thin film sandwiched between two isotropic media and the necessary intermediate formulae of the field reflection and transmission coefficients at the planar interface between a isotropic and a uniaxial media in explicit form. The formulae obtained are tested successfully using the criteria of conservation of energy and the conservation of the form of the equations for time reversal.