The proЬlem of noncontact determination of thermophysical characteristics of а thin layer with the help of laser-induced thermal waves is theoretically studied. The finiteness of the laser beam diameter makes it possiЫe to find the thickness of the layer and its thermal diffusivity independently of one another. The authors analyze pulsed and continuous modes of thermal wave excitation and discuss the proЬlem of choice of optimal conditions for а particular sample under study.
International Laser Center of Moscow State University, Research Center of Engineering Lasers
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