An approximate numerical technique for characterizing optical pulse propagation in inhomogeneous biological tissue

Handapangoda, Chintha C. and Premaratne, Malin 2008, An approximate numerical technique for characterizing optical pulse propagation in inhomogeneous biological tissue, Journal of biomedicine and biotechnology, vol. 2008, Special Issue, pp. 1-5.

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Title An approximate numerical technique for characterizing optical pulse propagation in inhomogeneous biological tissue
Author(s) Handapangoda, Chintha C.
Premaratne, Malin
Journal name Journal of biomedicine and biotechnology
Volume number 2008
Season Special Issue
Start page 1
End page 5
Publisher Hindawi Publishing Corporation
Place of publication New York, N.Y.
Publication date 2008
ISSN 1110-7243
1110-7251
Summary An approximate numerical technique for modeling optical pulse propagation through weakly scattering biological tissue is developed by solving the photon transport equation in biological tissue that includes varying refractive index and varying scattering/absorption coefficients. The proposed technique involves first tracing the ray paths defined by the refractive index profile of the medium by solving the eikonal equation using a Runge-Kutta integration algorithm. The photon transport equation is solved only along these ray paths, minimizing the overall computational burden of the resulting algorithm. The main advantage of the current algorithm is that it enables to discretise the pulse propagation space adaptively by taking optical depth into account. Therefore, computational efficiency can be increased without compromising the accuracy of the algorithm.
Language eng
Field of Research 090399 Biomedical Engineering not elsewhere classified
090606 Photonics and Electro-Optical Engineering (excl Communications)
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, C. C. Handapangoda and M. Premaratne.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039496

Document type: Journal Article
Collection: School of Engineering
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