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Thermal waves in materials with inhomogeneous thermal conductivity: An analytical approach

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2 Author(s)
Fivez, J. ; Laboratorium voor Akoestiek en Thermische Fysica, Departement Natuurkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B‐3001 Leuven, Belgium ; Thoen, J.

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An exact asymptotic expression for thermal waves in an inhomogeneous semi‐infinite condensed matter sample at high frequencies is derived. The theory also allows for a fast and accurate retrieval of subsurface thermal conductivity profiles from surface temperature values in response to incident modulated radiation. © 1996 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:79 ,  Issue: 5 )