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Research Papers: Sensing

Experimental spectro-angular mapping of light distribution in turbid media

[+] Author Affiliations
Serge Grabtchak

University of Prince Edward Island, Department of Physics, Charlottetown, PEI Canada C1A 4P3

Dalhousie University, Department of Electrical and Computer Engineering, Halifax, NS Canada B3J 1Z1

Dalhousie University, Department of Physics, 6310 Coburg Road, Halifax, NS Canada B3H3J5

Tyler J. Palmer

University of Prince Edward Island, Department of Physics, Charlottetown, PEI Canada C1A 4P3

Florian Foschum, Andre Liemert, Alwin Kienle

Institut für Lasertechnologien in der Medizin und Meßtechnik an der Universität Ulm, Helmholtzstr.12, D-89081 Ulm, Germany

William M. Whelan

University of Prince Edward Island, Department of Physics, Charlottetown, PEI Canada C1A 4P3

Atlantic Veterinary College, Department of Biomedical Sciences, Charlottetown, PEI Canada C1A 4P3

J. Biomed. Opt. 17(6), 067007 (Jun 08, 2012). doi:10.1117/1.JBO.17.6.067007
History: Received January 27, 2012; Revised May 1, 2012; Accepted May 10, 2012
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Abstract.  We present a new approach to the analysis of radiance in turbid media. The approach combines data from spectral, angular and spatial domains in a form of spectro-angular maps. Mapping provides a unique way to visualize details of light distribution in turbid media and allows tracking changes with distance. Information content of experimental spectro-angular maps is verified by a direct comparison with simulated data when an analytical solution of the radiative transfer equation is used. The findings deepen our understanding of the light distribution in a homogenous turbid medium and provide a first step toward applying the spectro-angular mapping as a diagnostic tool for tissue characterization.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Serge Grabtchak ; Tyler J. Palmer ; Florian Foschum ; Andre Liemert ; Alwin Kienle, et al.
"Experimental spectro-angular mapping of light distribution in turbid media", J. Biomed. Opt. 17(6), 067007 (Jun 08, 2012). ; http://dx.doi.org/10.1117/1.JBO.17.6.067007


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