dc.contributor.author | Shuaib, Ali | eng |
dc.contributor.author | Yao, Gang, Ph. D. | eng |
dc.date.issued | 2010-02 | eng |
dc.description | doi:10.1364/AO.49.000838 | eng |
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. | eng |
dc.description.sponsorship | This project was supported in part by National
Science Foundation (NSF) grant CBET0643190. | eng |
dc.identifier.citation | Applied Optics, Vol. 49, Issue 5, pp. 838-844 (2010). | eng |
dc.identifier.issn | 0003-6935/10/050838-07 | eng |
dc.identifier.uri | http://hdl.handle.net/10355/9040 | eng |
dc.language | English | eng |
dc.publisher | The Optical Society of America | eng |
dc.relation.ispartofcollection | Biological Engineering publications (MU) | eng |
dc.relation.ispartofcommunity | University of Missouri-Columbia. College of Agriculture, Food and Natural Resources. Division of Food Systems and Bioengineering. Department of Biological Engineering | eng |
dc.source.harvested | Optics InfoBase Web site | eng |
dc.subject.lcsh | Reflection (Optics) | eng |
dc.subject.lcsh | Light -- Scattering | eng |
dc.subject.lcsh | Optical fibers | eng |
dc.subject.lcsh | Optical properties | eng |
dc.subject.lcsh | Monte Carlo method | eng |
dc.title | Equi-intensity Distribution of Optical Reflectance in a Fibrous Turbid Medium | eng |
dc.type | Article | eng |