Simulation on scattering features of biological tissue based on generated refractive-index model
Important information on morphology of biological tissue can be deduced from elastic scattering spectra, and their analyses are based on the known refractive-index model of tissue. In this paper, a new numerical refractive-index model is put forward, and its scattering properties are intensively studied. Spectral decomposition1 is a widely used method to generate random medium in geology, but it is never used in biology. Biological tissue is different from geology in the sense of random medium. Autocorrelation function describe almost all of features in geology, but biological tissue is not as random as geology, its structure is regular in the sense of fractal geometry2 and fractal dimension can be used to describe its regularity under random. Firstly scattering theories of this fractal media are reviewed. Secondly the detailed generation process of refractive-index is presented. Finally the scattering features are simulated in FDTD (Finite Difference Time Domain) Solutions software. From the simulation results, we find that autocorrelation length and fractal dimension controls scattering feature of biological tissue.
Baoyong Wang Zhihua Ding
State Key Lab of Modern Optical Instrumentation, Zhejiang University 38 Zheda Rd.,Hangzhou 310027, P.R.China
国际会议
武汉
英文
1-7
2010-11-02（万方平台首次上网日期，不代表论文的发表时间）