Research of Dispersed Media Optical Properties by Photothermal Interference Method

This paper presents the study of optical properties of absorbing and scattering media. In order to determine changes in the optical properties of the studied media using the photothermal interference method, the digital interferometer scheme and related software were developed. It is shown that the developed photothermal interference method is characterized by high sensitivity and can be successfully used for rapid, non-contact, non-destructive determination of the parameters of absorbing and scattering media.