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Proceedings Paper

Thermal characterization of two media in contact using an impulsive interfacial heat source
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Paper Abstract

Transient thermal waves generated by the absorption of a very short laser pulse at the interface between two media are studied theoretically. The analysis employs Green functions for an instantaneous line heat source derived by the Cagniard-de Hoop method. These Green functions demonstrate that the properties of the temperature fields are determined by two dimensionless parameters, namely, the square root of the ratio of the thermal diffusivities and the ratio of the thermal conductivities of the two media. It is shown how these two parameters can be extracted using characteristic features of the temperature fields in both media.

Paper Details

Date Published: 14 October 2003
PDF: 11 pages
Proc. SPIE 5143, Novel Optical Instrumentation for Biomedical Applications, (14 October 2003); doi: 10.1117/12.500112
Show Author Affiliations
Margarita L Shendeleva, South Bank Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 5143:
Novel Optical Instrumentation for Biomedical Applications
Albert-Claude Boccara, Editor(s)

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