Photoinduced optical anisotropy (PIA) in condensed media - nature, properties, applications.100 anniversary of weigert effect

Abstract

In 1919 F. Weigert published a paper on an effect detected by him. In solid solutions of complex molecules of organic dyes induced anisotropy of optical properties appeared under ecitation by polarized light. This paper stimulated investigation of anisotropy of different materials by optical methods. Significant results have been obtained for data on anisotropy of primary processes of light radiation and absorption that relate to specific features of intermolecular interaction in condensed matter. The effect is used in holography, integrated, fiber and polarization optics, in systems for information recording, storage, processing and displaying.