Reduced light-scattering properties for mixtures of spherical particles : a simple approximation derived from Mie calculations
Aarnoudse, J. G.
Zijp, J. R.
Sloot, Peter M. A.
Mul, F. F. M. de.
Koelink, M. H.
Date of Issue1992
School of Computer Engineering
The reduced scattering cross section per unit of volume Σʹs ≡Σs(1 - g) is an important parameter to describe light propagation in media with scattering and absorption. Mie calculations of the asymmetry factor g for nonabsorbing spheres and Qsca, the ratio of the scattering cross section Σs and the particle cross section, show that Qsca(1 - g) = 3.28x0.37(m - 1)2.09 is true to within a few percent, when the Mie parameters for relative refractive index m and size x are in the ranges of 1 < m ≤ 1.1 and 5 < x < 50, respectively. A ratio of reduced scattering cross sections for radiation at two wavelengths is also independent of the size within the range mentioned, even for mixtures of different size spheres. The results seem promising for biomedical applications.
DRNTU::Engineering::Computer science and engineering
© 1992 Optical Society of America. This paper was published in Applied Optics and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: [http://dx.doi.org/10.1364/AO.31.001370]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.