Mischuk O. Phenomena of linear birefringence and dichroism in real solids, induced by inhomogeneous potential

The dissertation is devoted to the research of the technique of modulation polarimetry of the phenomena caused by the natural and artificial anisotropy of the dielectric properties of a substance caused by various internal and external factors. The main focus is on two phenomena - linear birefringence and dichroism. The results of the original analysis of the component composition of the thermoelastisity are presented, the result of which is the distribution in the space and time of stresses, caused by separate radiation, conductive and convective mechanisms of heat transfer. The proposed method allows to determine the characteristic times of these processes and their partial relations in space. The methodical novelty of the Kramers-Kronig relation in the format of the derivative spectral function of the complex refractive index, which consists in the registration of increments of its components Δn (w) and Δk (w) by the technique of modulation polarimetry, is demonstrated. Resonance amplitude phenomena observed in the interaction of polarized radiation with electronic systems in nanoscale metal, metal-dielectric and composite films are investigated. Linear anisotropy under surface plasmon resonance conditions was investigated by modulation polarimetry, and new features related to dimensional and topological effects in nanoscale solid and cluster films of Sn, Au, as well as metal-dielectric nanocomposite structures were investigated. It is shown that the measurement of the angular and spectral dependences of the polarization difference ΔR, which is analogous to the Q component of the Stokes vector, allows us to determine the mechanism of resonant excitation of surface plasmon-polaritons, the degree of dominance of p- or s-polarization, the homogeneity of clustering