Resolution Enhancement of Photoacoustic FTIR Spectra

K. H. Michaelian; W. I. Friesen

doi:10.1117/12.970799

20 December 1985 Resolution Enhancement of Photoacoustic FTIR Spectra

K. H. Michaelian, W. I. Friesen

Proceedings Volume 0553, Fourier and Computerized Infrared Spectroscopy; (1985) https://doi.org/10.1117/12.970799
Event: 1985 International Conference on Fourier and Computerized Infrared Spectroscopy, 1985, Ottawa, Canada

Abstract

Fourier self-deconvolution of a photoacoustic FTIR spectrum by direct manipulation of the observed interferogram is shown to be possible. Over a narrow frequency range, the measured photoacoustic (PA) signal is approximately proportional to the optical absorption coefficient, thereby enabling known line shapes to be used in the deconvolution. The method is applied to the PA spectrum of kaolinite and the enhanced spectrum is compared with other theoretical and experimental results.

Citation Download Citation

K. H. Michaelian and W. I. Friesen "Resolution Enhancement of Photoacoustic FTIR Spectra", Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); https://doi.org/10.1117/12.970799

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