| 基于不规则衍射理论的冰晶粒子的光散射研究(英文) |
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| 引用本文： | 刘建斌.基于不规则衍射理论的冰晶粒子的光散射研究(英文)[J].光散射学报,2008,20(3). |
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| 作者姓名： | 刘建斌 |
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| 作者单位： | 华南农业大学理学院,广州,510642 |
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| 基金项目： | 华南农业大学校科研和教改项目 |
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| 摘 要： | 在不规则衍射理论的基础上,分析了从可见光到近红外波段冰晶粒子的光散射特性。计算了粒子尺度为20μm,50μm,80μm的五种典型冰晶粒子的消光效率因子和吸收效率因子。最后,为了评估不规则衍射理论的精确性,与有限时域差分法和几何光学法进行了比较。
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| 关 键 词： | 冰晶粒子 光散射 不规则衍射理论(ADT) |
Study of Light Scattering from Ice Crystals Particles by Using the Anomalous Diffraction Theory(ADT) |
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| LIU Jianbin.Study of Light Scattering from Ice Crystals Particles by Using the Anomalous Diffraction Theory(ADT)[J].Chinese Journal of Light Scattering,2008,20(3). |
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| Authors: | LIU Jianbin |
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| Abstract: | On the basis of the anomalous diffraction theory(ADT), the light scattering properties ice crystals particles in the visible through near-infrared wavelength regime are computed. The extinction efficiency and absorption efficiency of five ice crystals particles(aggregates, solid columns, droxtals, plates and rosettes) with a fixed effective particle size of 20 μm, 50 μm and 80 μm are calculated in the present study. Finally, in order to evaluate the accuracy of the ADT, we compare it with the finite-difference time domain(FDTD) method and the geometric optics method. |
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| Keywords: | Ice crystals particles Light scattering The anomalous diffraction theory(ADT) |
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