随机取向烟尘团簇粒子激光散射特性研究

被引:13
作者
类成新
刘汉法
张化福
机构
[1] 山东理工大学理学院
关键词
物理光学; 烟尘团簇凝聚粒子; 离散偶极子近似方法; 激光散射特性;
D O I
暂无
中图分类号
O436 [物理光学(波动光学)];
学科分类号
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团簇粒子进行了模拟,用离散偶极子近似(DDA)方法研究了烟尘团簇粒子随机取向时的激光散射特性,并与等效球形粒子的激光散射特性进行了比较。结果表明,等效球形粒子的激光散射特性与随机取向烟尘团簇粒子的激光散射特性存在着明显差别,不能用等效球形粒子来代替随机取向的团簇粒子;随机取向的烟尘团簇粒子的激光散射特性受基本粒子数量和粒径的影响比较大。该结果将为进一步研究随机取向团簇粒子的形成机理、形态特性以及激光在其中的传输特性提供了一种理论方法。
引用
收藏
页码:876 / 880
页数:5
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