Equi-intensity Distribution of Optical Reflectance in a Fibrous Turbid Medium

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Equi-intensity Distribution of Optical Reflectance in a Fibrous Turbid Medium

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dc.contributor.author Shuaib, Ali
dc.contributor.author Yao, Gang, Ph. D.
dc.date.accessioned 2010-11-15T15:05:32Z
dc.date.available 2010-11-15T15:05:32Z
dc.date.issued 2010-02-10
dc.identifier.citation Applied Optics, Vol. 49, Issue 5, pp. 838-844 (2010). en_US
dc.identifier.issn 0003-6935/10/050838-07
dc.identifier.uri http://hdl.handle.net/10355/9040
dc.description doi:10.1364/AO.49.000838 en_US
dc.description.abstract Light propagation in a fibrous anisotropic scattering medium is quite different from that in an isotropic medium. Both the anisotropic diffuse equation (ADE) and the continuous time random walk (CTRW) theory predict that the equi-intensity profiles of the surface reflectance have an elliptical shape in a fibrous turbid medium. In this study, we simulated the spatially resolved surface reflectance in a fibrous sample using a Monte Carlo model. A parametric equation was used to quantitatively characterize the geometric profiles of the reflectance patterns. The results indicated that the equi-intensity profiles of surface reflectance had elliptical shapes only when evaluated at distances far away from the incident point. The length ratio of the two orthogonal axes of the ellipse was not affected by the sample optical properties when the ratio of reduced scattering coefficients along the two axes is the same. But the relationship between the aforementioned two ratios was different from the predication of ADE theory. Only for fibers of small sizes did the fitted axes ratios approach the values predicted from the ADE theory. en_US
dc.description.sponsorship This project was supported in part by National Science Foundation (NSF) grant CBET0643190. en_US
dc.language.iso en_US en_US
dc.publisher The Optical Society of America en_US
dc.subject.lcsh Reflection (Optics) en_US
dc.subject.lcsh Light -- Scattering en_US
dc.subject.lcsh Optical fibers en_US
dc.subject.lcsh Optical properties en_US
dc.subject.lcsh Monte Carlo method en_US
dc.title Equi-intensity Distribution of Optical Reflectance in a Fibrous Turbid Medium en_US
dc.type Article en_US
dc.source.harvested Optics InfoBase Web site en_US
dc.relation.ispartofcommunity University of Missouri-Columbia. College of Agriculture, Food and Natural Resources. Division of Food Systems and Bioengineering. Department of Biological Engineering
dc.relation.ispartofcollection Biological Engineering publications (MU)


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