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Proceedings Paper

Combined photothermal-photometric method for the determination of tissue optical properties
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Paper Abstract

A novel method for measuring the optical properties of highly absorbing and scattering biological media is described. The method combines frequency-domain photothermal radiometry (FD-PTR) with spatially resolved diffuse reflectance (SR-DR) techniques aimed at improving sensitivity on the determination of both scattering and absorption coefficients. Simulation results with Monte-Carlo and Diffusion Theory approaches that assess the scope and feasibility of the method are presented. An optical fiber probe for SR-DR measurements was constructed for operations at small source-detector separations and an FD-PTR system was adapted for quasi-simultaneous operation with the probe. Several experiments on epoxy phantoms that illustrate the validity and potential of the method are presented.

Paper Details

Date Published: 1 March 2006
PDF: 11 pages
Proc. SPIE 6084, Optical Interactions with Tissue and Cells XVII, 60840N (1 March 2006); doi: 10.1117/12.644120
Show Author Affiliations
E. S. R. Fonseca D.D.S., Univ. da Beira Interior (Portugal)
M. E. P. de Jesus, Univ. da Beira Interior (Portugal)

Published in SPIE Proceedings Vol. 6084:
Optical Interactions with Tissue and Cells XVII
Steven L. Jacques; William P. Roach, Editor(s)

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