Transmission of Electromagnetic Waves Through Plane-Parallel Layers Under Total Reflection Conditions

Analytical expressions are obtained for and used in calculations of the transmittance of thin (on the order of a wavelength) layers under conditions of total reflection at one of the boundaries in the general case of linearly polarized radiation where the oscillation azimuth of the incident wave is not 0 or π/2. The transmittances of this kind of layer for TE (s-polarization) and TM (p-polarization) waves are compared. The analytic expressions are used to calculate the dependence of the energy transmittance on layer thickness for a fixed angle of incidence and different oscillation azimuths of a linearly polarized incident wave, as well as for several angles of incidence (including the critical angle) with a fixed oscillation azimuth.