Research of mutual diffusion processes in thin transparent media by methods of laser interferometry

Methods of laser interferometry and optical interferometers with digital system of registration of images for studying processes of mutual diffusion in systems polymer - solvent and low-molecular liquid I - low-molecular liquid II are considered. The description of the equipment and a technique of realization of experiments with use the Mach-Zehnder and Michelson interferometers, and multibeam micro interferometer is presented. Kinetics of spatial distribution of refraction index of a medium in mass transport process is determined; diffusion factors are calculated.