中文摘要：

利用蒙特卡罗方法根据团簇-团簇凝聚（CCA）模型对由球形原始粒子凝聚而成的烟尘簇团粒子进行了模拟,用离散偶极子近似（DDA）方法对随机分布的烟尘簇团粒子的缪勒矩阵元素进行了数值计算,给出了不同入射波长情况下随机分布烟尘簇团粒子的缪勒矩阵元素与组成簇团粒子的基本粒子的粒径和数目的数值关系,为进一步研究随机分布簇团粒子的形成机理、形态特性、散射特性提供了一种理论方法.

英文摘要：

Cluster-cluster aggregation model based on Monte Carlo method is used to simulate the structure of the fractal-like soot cluster agglomerates consisting of spherical primary particles,and Mueller-matrix elements of fractal-like soot cluster agglomerates are calculated based on the discrete dipole approximation method.The numerical relations between the Mueller-matrix elements and the total number and the diameter of the primary sphere in agglomerate are discussed for different incident wavelengths,which provides an effective theoretical method for studing the formation mechanism, structural characteristics and scattering characteristics of randomly distributed cluster agglomerates.