Numéro
J. Phys. IV France
Volume 04, Numéro C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
Page(s) C7-571 - C7-574
DOI https://doi.org/10.1051/jp4:19947134
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique

J. Phys. IV France 04 (1994) C7-571-C7-574

DOI: 10.1051/jp4:19947134

Micronic thermal characterization of vertical interfaces using the photoreflectance method

F. Lepoutre1, Ph. Forge1, J.L. Joulaud1, L. Paradis2 and D. Rochais2

1  ONERA, L3C, BP. 79, 92322 Châtillon, France
2  CEA, BP. 12, 91680 Bruyères-le-Châtel, France


Abstract
This paper presents the theoretical and experimental possibilities of a modulated photothermal method, laser induced photoreflectance, for inspecting the quality of interfaces with micronic spatial resolutions. An analytical model is established for semi-infinite materials containing an internal interface perpendicular to the sample surface. The presented application is the detection of thermal resistances in damaged materials.



© EDP Sciences 1994