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29 October 1981 Photacoustic Fourier Transform Infrared (FTIR) Spectroscopy
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Proceedings Volume 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy; (1981)
Event: 1981 International Conference on Fourier Transform Infrared Spectroscopy, 1981, Columbia, United States
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.
© (1981) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
K. Krishnan, S. L. Hill, H. Witek, and J. Knecht "Photacoustic Fourier Transform Infrared (FTIR) Spectroscopy", Proc. SPIE 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy, (29 October 1981);

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