J. Phys. IV France
Volume 137, November 2006
Page(s) 297 - 303
Publié en ligne 23 décembre 2006
35th Winter School on Wave and Quantum Acoustics
J. Bodzenta, M. Dzida and T. Pustelny
J. Phys. IV France 137 (2006) 297-303

DOI: 10.1051/jp4:2006137058

Comparison of theories describing the photodeflection detection in photothermal experiments: The complex geometrical optics, the ray model and the wave geometrical optics

D.K. Kobylinska

Institute of Physics, Silesian University of Technology, Krzywoustego 2, 44-100 Gliwice, Poland

(Published online 23 December 2006)

In the work the comparison of the ray theory, the wave theory with the complex ray theory is presented. The results of the comparison are shown on graphs of the photodeflection signal dependence on some parameters of the experimental setup. There was pointed out in the paper that the differencies between all presented theories occur for the probe beam radius a comparable with the length of the thermal wave $\lambda _{g}$.

© EDP Sciences 2006