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We suggest a method for monitoring concentration dependences of the light scattering occurring in gradient solutions prepared by diffusion in the gravitational field. In this method, an electronic speckle-pattern interferometry (ESPI) approach is employed for non-contact measurements of spatial distribution of the solution concentrations. The method is applied to water-glycerol solutions. It has enabled us to study, in a simple way, the anomalous scattering peaks hardly observable with common techniques. The data obtained using our method are well reproducible and reliable.

ukrainian journal of physical optics

Determination of characteristics of anomalous light scattering in the gradient solutions using electronic speckle-pattern interferometry control of concentration distribution