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Proceedings Paper

Photacoustic Fourier Transform Infrared (FTIR) Spectroscopy
Author(s): K. Krishnan; S. L. Hill; H. Witek; J. Knecht
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Paper Abstract

Photoacoustic FT-IR spectra recorded using a new photoacoustic cell are described. The study of the photoacoustic spectra of cast films of Plexiglas of different thicknesses shows that the depth of penetration of the FT-IR photoacoustic experiments is of the order of a few micrometers and that photoacoustic saturation effects play a key role in the qualitative appearance of the spectra. These differences can be misinterpreted as due to structural changes in different layers of the sample.

Paper Details

Date Published: 29 October 1981
PDF: 3 pages
Proc. SPIE 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy, (29 October 1981); doi: 10.1117/12.932137
Show Author Affiliations
K. Krishnan, Digilab Division of Bio-Rad Laboratories (United States)
S. L. Hill, Digilab Division of Bio-Rad Laboratories (United States)
H. Witek, Bio-Rad Laboratories (Germany)
J. Knecht, Bio-Rad Laboratories (Germany)


Published in SPIE Proceedings Vol. 0289:
1981 Intl Conf on Fourier Transform Infrared Spectroscopy
Hajime Sakai, Editor(s)

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