EFFECTS OF ANISOTROPY AND GYROTROPY OF CRYSTAL FILM ON CHARACTERISTICS OF POLARIZED LIGHT. B.V. Nabatov, A.F. Konstantinova and A.Yu. Tronin. Institute of Crystallography, Russian Academy of Sciences, Leninsky pr. 59, Moscow 117333, Russia.

Reflection of light from the gyrotropic uniaxial film with arbitrary axis orientation accounting for repeated reflection is investigated. This problem is considered by using the covariant method for an oblique incidence of light, for different refractive indices of ambient and substrate and it is solved numerically. As a result diagonal and off-diagonal components of the reflectance and transmitance matrices, ellipticities and azimuths of reflected and transmitted light are calculated.

Dependences of the reflection coefficients as a function of the incidence angle, wavelength, the orientation of the optical axis, refractive indices and gyration tenser components are discussed. The gyrotropy manifestation in anisotropic films such as changing the symmetry of the system, appearance of off-diagonal reflection coefficients in symmetrical optical orientations, increase of reflected light ellipticity upon approach of the ambient refractivity to that of the film and etc. are analyzed. The use of such characteristic dependences makes possible the experimental determination of gyrotropy with reflected light.