“…As this takes place, the spatial variable state of total field polarization causes the appearance of spatial modula tion of photoanisotropy and/or photogyrotropy in the medium [2][3][4]. The passage to the polarization recording of holograms permits one to control for dif fracted radiation polarization, which can be used, e.g., in laser radiation correction systems with a complex polarization distribution over the wavefront [5], as well as to obtain information about the structure and aniso tropic properties of the medium, which has promising applications in systems of polarization optical mem ory [6].…”