Features of Thermal Elastic Deformation of Polymer Film Caused by Laser Radiation of Various Power

An experimental study of thermal deformation of a polymer film exposed to laser radiation of different intensity was carried out. The dependence of the radius of curvature of the deformed film on the duration of laser exposure and on the power of radiation was established. The temperature of the laser spot area was measured and the relative change in the film volume was calculated. The coefficient of volumetric expansion of the film material was determined from the obtained data.