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Regular version of the site

Article

Spectral Analysis of Thermowave Oscillations in Layered Media

Inorganic Materials: Applied Research. 2012. Vol. 3. No. 2. P. 179-182.
Bondarenko G., Kokin M., Pyatykh D. S., Yakunkin M. M.

A method based on the spectral analysis of thermowave oscillations formed under the effect of radiation of lasers operated in a periodic pulsed mode is developed for investigating the state of the interface of multilayered systems. The method is based on high sensitivity of the shape of the oscillating component of the pyrometric signal to adhesion characteristics of the phase interface. The shape of the signal is quantitatively estimated using the correlation coefficient (for a film–interface system) and the transfer function (for multilayered specimens).