Quantitative Photoacoustic Spectroscopy Of Thick Sample By A New Data Analysis.

G. Rousset; L. Bertrand; B. Mongeau

doi:10.1117/12.970810

20 December 1985 Quantitative Photoacoustic Spectroscopy Of Thick Sample By A New Data Analysis.

G. Rousset, L. Bertrand, B. Mongeau

Proceedings Volume 0553, Fourier and Computerized Infrared Spectroscopy; (1985) https://doi.org/10.1117/12.970810
Event: 1985 International Conference on Fourier and Computerized Infrared Spectroscopy, 1985, Ottawa, Canada

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.

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G. Rousset, L. Bertrand, and B. Mongeau "Quantitative Photoacoustic Spectroscopy Of Thick Sample By A New Data Analysis.", Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); https://doi.org/10.1117/12.970810

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