摘要
建立了针对多分散高浓度介质偏振光后向扩散散射的MonteCarlo仿真模型,导出了多分散系统的有效自由程分布函数.给出了半径为50nm与550nm及其三种不同体积浓度比混合的聚苯乙烯微球作为散射粒子的高浓度介质的仿真结果.定性地分析了多分散介质偏振光后向扩散散射的光强空间分布特征与粒子的体积浓度比的关系.
A Monte Carlo simulation model for the diffuse backscattering of the polarized light from the poly-disperse highly dense media is developed and the effective free pathlength distribution function of the poly-disperse system is given. Simulation is conducted for the mono-disperse polystyrene suspensions with particle sizes of radii 50 and 550nm, and poly-disperse suspensions containing the above two particles with the volume fraction ratios of 4:1, 1:1 and 1:4. The relation between the spatial intensity variations of the light diffuse backscattering pattern and the volume fraction ratio of the poly-disperse suspensions is analyzed qualitatively.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第6期2694-2698,共5页
Acta Physica Sinica
