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"Resonance" phenomena in thermal diffusion processes in two-layer structures

Yu. G. Gurevich·G. N. Logvinov·N. Munoz-Aguirre·L. Martinez-Perez
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Abstract

The dependence on chopper frequency of the effective thermal diffusivity and effective thermal conductivity in photoacoustic experiments is discussed. The theoretical model of a two-layer structure at rear-surface illumination in the high frequency limit is considered. It is shown that the effective thermal diffusivity presents ``resonance'' while the effective thermal conductivity sharply changes its magnitude and sign. Such ``resonant'' behavior strongly depends on the surface thermal conductivities associated with the interface thermal contacts.

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Yu. G. Gurevich, G. N. Logvinov, N. Munoz-Aguirre, L. Martinez-Perez. 2002-02-28. "Resonance" phenomena in thermal diffusion processes in two-layer structures. https://doi.org/10.1063/1.1468899

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