Nonlinear optical methods for researching of kinetic coefficients in binary mixtures

In two-component fluid (binary mixture) the heat flow can cause concentration stream arising from occurrence of thermodiffusion phenomenon (Soret effect). As a result these phenomenon changes the magnitude of the transport coefficients of the mixture. This paper analyzed nonlinear optical methods of diagnostics of the kinetic coefficients of binary mixtures - the thermal lens method and dynamical holography method. It was developed the theory of the light induced heat and mass transfer, taking into account the electrostrictive forces (for nanoliquids). The results are relevant to optical diagnostics of binary mixture and dispersed liquid materials. (paper)