激光生物学报2011，Vol.20Issue(5)：591-594,612,5.DOI:10.3969/j.issn.1007-7146.2011.05.005
球状分形结构模型在组织光学中的应用
Application of Spherical Fractal Model in Tissue Optics
摘要
Abstract
A spherical fractal model is introduced to calculate the scattering coefficient, anisotropy factor and scatterring phase function. Double contour lines of the scattering coefficient and anisotropy factor are used to invert the fractal dimension and relative refractive index. Numerical results show that scattering coefficient decreases in the form of power function as the wavelength increases in the visible optical band; the anisotropy factor is nearly indepent of wavelength and its magnitude is inversely proportional to the product of fractal dimension and relative refractive index; the phase function based on the spherical fractal model agrees with the Henyey-Greenstein phase function in the forward direction (I. E. The scattering angle < 100°) and has the more accuracy in the backward direction.关键词
分形/组织光学/散射系数/各向异性因子Key words
fractal/tissue optics/scattering coefficient/anisotropy factor分类
化学化工引用本文复制引用
王清华,李振华,来建成,贺安之..球状分形结构模型在组织光学中的应用[J].激光生物学报,2011,20(5):591-594,612,5.基金项目
国家自然科学基金项目(10904072) （10904072）
南京理工大学启动基金项目(AB41994) （AB41994）
