FT-IR step scan photoacoustic phase analysis and depth profiling of calcified tissues

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DOIResolve DOI: http://doi.org/10.1366/0003702944028182
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TypeArticle
Journal titleApplied Spectroscopy
Volume48
Issue3
Pages316319; # of pages: 4
SubjectPAS/FT-IR; Photoacoustic spectroscopy; Depth profiling; Calcified tissue
AbstractRapid-scan- and step-scan-based Fourier transform infrared photoacoustic depth profiling results of an extracted but intact human tooth are compared. The effects of various data processing methods are examined. Analysis of the phase dispersion of the photothermal signal along with spectral linearization is used to access the extent of photoacoustic saturation in the photoacoustic spectra. Phase-modulated/phase-resolved depth profiling methods are less prone to photoacoustic saturation and provide superior localization of the surface and subsurface absorbers distributed in the tooth enamel. Mid-infrared depth profiling studies of calcified tissues can aid in the understanding of degenerative bone diseases, bone growth, and modeling, as well as tissue mineralization.
Publication date
PublisherSociety for Applied Spectroscopy
LanguageEnglish
AffiliationNRC Institute for Biodiagnostics; National Research Council Canada
Peer reviewedYes
NRC number110
NPARC number9147681
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Record identifier9551a3fb-b823-4aba-8a55-0efd8bac25f9
Record created2009-06-25
Record modified2016-12-08
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