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

Margarita L Shendeleva

doi:10.1117/12.500112

14 October 2003 Thermal characterization of two media in contact using an impulsive interfacial heat source

Margarita L Shendeleva

Proceedings Volume 5143, Novel Optical Instrumentation for Biomedical Applications; (2003) https://doi.org/10.1117/12.500112
Event: European Conferences on Biomedical Optics 2003, 2003, Munich, Germany

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.

Citation Download Citation

Margarita L Shendeleva "Thermal characterization of two media in contact using an impulsive interfacial heat source", Proc. SPIE 5143, Novel Optical Instrumentation for Biomedical Applications, (14 October 2003); https://doi.org/10.1117/12.500112

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