| 分形凝聚粒子的光散射特性研究 |
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| 引用本文： | 王红霞,马进,宋仔标,刘代志.分形凝聚粒子的光散射特性研究[J].光学学报,2011(3):292-297. |
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| 作者姓名： | 王红霞 马进 宋仔标 刘代志 |
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| 作者单位： | 第二炮兵工程学院基础部;第二炮兵工程学院602室; |
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| 基金项目： | 国家自然科学基金(60908044)资助课题 |
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| 摘 要： | 粒子的形状和凝聚对光散射特性有着很大的影响.基于分形生长的受限扩散(DLA)模型,模拟了凝聚粒子的三维空间分形结构,并采用回转半径法计算了凝聚粒子的分形维数.利用离散偶极子近似(DDA)方法研究了纳米石墨凝聚粒子的光散射特性,对于原始粒子数不同的凝聚粒子及分形结构不同的凝聚粒子,数值计算了散射强度和偏振度随散射角的分布...
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| 关 键 词： | 物理光学 光散射 离散偶极子近似 分形凝聚粒子 纳米石墨 |
Light Scattering Properties of Fractal Aggregates |
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| Wang Hongxia Ma Jin Song Zibiao Liu Daizhi.Light Scattering Properties of Fractal Aggregates[J].Acta Optica Sinica,2011(3):292-297. |
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| Authors: | Wang Hongxia Ma Jin Song Zibiao Liu Daizhi |
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| Abstract: | The shape and aggregation of particle have a strong influence on the light scattering property.The diffusion-limited aggregation model(DLA) of fractal growth is used to simulate the possible structures of aggregates,and the fractal dimension of aggregates is calculated with the method of gyration radius.The light scattering property of nano-graphite aggregates is studied on the basis of discrete dipole approximation(DDA) method.For aggregates with different numbers of primary particles and with different fr... |
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| Keywords: | physical optics light scattering discrete dipole approximation(DDA) fractal aggregates nano-graphite |
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