Thermal diffusivity measurement of polymeric thin films using the photothermal displacement...

Illustrates the development of a three-dimensional analytical solution as well as experimental verification of the thermoelastically induced deformation in a substrate-constrained thin polymeric film. Multireflection of the thin polymeric film; Relative distance measurement at a modulation frequency; Comparison of temperature modulation to elastic deformation; Discussion of the interfacial thermal resistance.