Vol. 34, Issue 1, pp. 101-110

  1. Archive
  2. Optica Applicata Vol. 34, Issue 1, pp. 101-110 (2004)
Vol. 34 Issue 1 pp. 101-110

Photoacoustic determination of the thermal diffusivity for thin metallic samples

Konrad Lukaszewski, Krzysztof Pieszynski

Keywords

photoacoustic, photothermal, laser

Abstract

The ratio of the signals produced in the photoacoustic cell for the front and back illumination of the metallic sample is analyzed. Both the theory and the experiment conducted prove that the slope of the frequency dependence of this ratio gives the measure of the sample’s thermal diffusivity.

Vol. 34
Issue 1
pp. 101-110

0.39 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology