A 3-dimensional time-resolved photothermal deflection “Mirage” method

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DOIResolve DOI: http://doi.org/10.1063/1.3691253
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TypeArticle
Journal titleApplied Physics Letters
ISSN0003-6951
Volume100
Issue9
Article number091908
AbstractA three-dimensional time-resolved theory and experiment for photothermal deflection spectroscopy is developed. The heat conduction equations for two semi-infinite media consisting of an opaque sample and a fluid are solved considering temperature and energy flux balance conditions for a Gaussian heat source. The time dependent perpendicular deflection signal is calculated and compared to experimental measurements on glassy carbon and copper samples. Excellent agreement with literature values for thermal diffusivity of the samples is found. The transient behavior is analyzed for different coupling fluids.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Fuel Cell Innovation
Peer reviewedYes
NPARC number21269039
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Record identifier02a9c3fa-e2ab-4f84-a022-013349ef2880
Record created2013-12-02
Record modified2016-05-09
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