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Proceedings Paper

Phase-modulated phase-resolved photoacoustic FTIR study of calcified tissues
Author(s): Michael G. Sowa; Henry H. Mantsch
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Paper Abstract

Photoacoustic Fourier transform infrared spectroscopy is employed as a nondestructive method of depth profiling calcified tissues. The enamel layer is depth profiled using both scan and phase modulation. Phase resolved-phase modulated spectra provide superior localization and reduced photoacoustic saturation. Phase synthesized spectra derived from the in-phase and quadrature photothermal signals provide all the essential features to reconstruct the enamel depth profile.

Paper Details

Date Published: 31 January 1994
PDF: 2 pages
Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); doi: 10.1117/12.166730
Show Author Affiliations
Michael G. Sowa, National Research Council Canada (Canada)
Henry H. Mantsch, National Research Council Canada (Canada)


Published in SPIE Proceedings Vol. 2089:
9th International Conference on Fourier Transform Spectroscopy
John E. Bertie; Hal Wieser, Editor(s)

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