METHOD AND DEVICE FOR THE PHOTOTHERMAL ANALYSIS OF A SAMPLE

The invention provides a method for a photothermic investigation of a sample, comprising: irradiating a first side of the sample with an electromagnetic excitation pulse; detecting a thermal radiation emitted from a second side of the sample located opposite the first side as a result of the excitat...

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Bibliographic Details
Main Authors Brunner, Martin, Thermitus, Marc-Antoine
Format Patent
LanguageEnglish
French
German
Published 09.12.2020
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:The invention provides a method for a photothermic investigation of a sample, comprising: irradiating a first side of the sample with an electromagnetic excitation pulse; detecting a thermal radiation emitted from a second side of the sample located opposite the first side as a result of the excitation pulse; evaluating the detected thermal radiation on the basis of a model which is defined by the following equations which are described in the specifications, wherein a mathematical equalizing calculation is carried out so as to estimate the afore-mentioned parameters [alpha], k, h, [eta]' of the time-dependent model by means of a temporal progression of the temperature T(L,t) determined from the detected thermal radiation on the second side of the sample.
Bibliography:Application Number: EP20160002275