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Proceedings Paper

Quantitative Photoacoustic Spectroscopy Of Thick Sample By A New Data Analysis.
Author(s): G. Rousset; L. Bertrand; B. Mongeau
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Paper Abstract

A new data analysis is proposed for the calculation of quantitative infrared (I.R.) spectra by the photoacoustic (P.A.) method. The theoretical P.A. signal components inquadrature and in-phase with the modulated I.R. excitation exhibit intrinsic variations in function of the variable Op. The identification of such a behavior in the experimental data permits to avoid the signal amplitude saturation and the determination of an external signal phase reference, two common problems in P.A. spectroscopy. The proposed data manipulation leads to the calculation of a quantitative sample spectrum. This is illustrated by an experimental example.

Paper Details

Date Published: 20 December 1985
PDF: 2 pages
Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); doi: 10.1117/12.970810
Show Author Affiliations
G. Rousset, Ecole Polytechnique de Montreal (Canada)
L. Bertrand, Ecole Polytechnique de Montreal (Canada)
B. Mongeau, College Militaire Royal de St-Jean (Canada)


Published in SPIE Proceedings Vol. 0553:
Fourier and Computerized Infrared Spectroscopy
David G. Cameron; Jeannette G. Grasselli, Editor(s)

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