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The surface deformation of oil by laser heating is presented. The self-focusing of the reflected beam and the generation of capillary waves are observed.

Evaluation of fracture behavior in a plasma-sprayed ceramics coating by acoustic emission using laser interferometer AIP Conf.Fast infrared scanning technique (FIRST), in which a laser beam focused to a line is used for heating and the temperature rise is detected with an IR scanner, is applied to the nondestructive inspection of plasma-sprayed coatings. The surface temperature profiles are computed numerically for faultless and defective coatings, and the functionality of the technique is demonstrated using a sample with artificial defects.