We determine the thermal diffusivity of nontransparent samples by measuring the reflectivity changes of a collimated probe light beam generated by the absorption of a focused pump beam. Good agreement with previous measurements is reported.
(240.0240) Optics at surfaces : Optics at surfaces
(240.4350) Optics at surfaces : Nonlinear optics at surfaces
(350.0350) Other areas of optics : Other areas of optics
(350.6830) Other areas of optics : Thermal lensing
A. Marcano, F. Delima, G. Gwanmesia, and N. Melikechi, "Photo-Thermal Mirror Method for Determination of Thermal Diffusivity of Nontransparent Samples," in Frontiers in Optics 2010/Laser Science XXVI, OSA Technical Digest (CD) (Optical Society of America, 2010), paper FThZ3.