Thermal Diffusivity Estimation in a Picosecond Photoreflectance Experiment-Reference-Cited by-同舟云学术

Thermal Diffusivity Estimation in a Picosecond Photoreflectance Experiment

Published:2006-08-29 Issue:6 Volume:129 Page:756-758
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Battaglia Jean-Luc¹,Kusiak Andrzej¹,Batsale Jean-Christophe¹

Affiliation:

1. Laboratoire inter Établissement ‘TRansferts Ecoulements Fluides Energétique’, UMR 8508, Ecole Nationale Supérieure d’Arts et Métiers, Esplanade des Arts et Métiers, 33405 Talence Cedex, France

Abstract

The aim of this work is to provide an analytical expression for the thermal diffusivity of a material in the configuration of the picosecond photoreflectance experiment. It is shown that the thermal diffusivity can be estimated from the absorption depth of the pump beam together with the probe beam as well as the time when the two asymptotic behaviors of the impulse response cross. Thereby, it is not required to measure absolute values of incident heat flux and average temperature on the aiming area.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/129/6/756/5550315/756_1.pdf

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