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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 19 — Jul. 1, 1999
  • pp: 4228–4236

Experimental tests of different solutions to the diffusion equation for optical characterization of scattering media by time-resolved transmittance

Ines Delfino, Maria Lepore, and Pietro L. Indovina  »View Author Affiliations


Applied Optics, Vol. 38, Issue 19, pp. 4228-4236 (1999)
http://dx.doi.org/10.1364/AO.38.004228


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Abstract

A detailed investigation of the use of time-resolved trasmittance for the optical characterization of scattering media by use of different analytical solutions to the diffusion equation has been performed. A femtosecond Ti:sapphire laser working at 800 nm and a streak camera with a time resolution of a few picoseconds were employed. Different latex and Intralipid solutions as well as biological samples were investigated. Reduced scattering coefficients were evaluated, and good agreement with the Mie predictions was found. An estimation of the order of magnitude of the absorption coefficient was obtained for the low-absorbance samples examined. These studies confirm experimentally that time-resolved trasmittance can be employed usefully for evaluating μ s ′ values of thick scattering samples when a proper theoretical description that takes into account realistic boundary conditions is used.

© 1999 Optical Society of America

OCIS Codes
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.5280) Medical optics and biotechnology : Photon migration
(290.1990) Scattering : Diffusion

History
Original Manuscript: November 6, 1998
Revised Manuscript: March 8, 1999
Published: July 1, 1999

Citation
Ines Delfino, Maria Lepore, and Pietro L. Indovina, "Experimental tests of different solutions to the diffusion equation for optical characterization of scattering media by time-resolved transmittance," Appl. Opt. 38, 4228-4236 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-19-4228

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