Catastrophe optics of spheroidal drops and generalized rainbows
Catastrophe optics of spheroidal drops and generalized rainbows
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DOI：
10.1016/s0022-4073(99)00023-0
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发表时间：
1999-09-01
影响因子：
2.3
通讯作者：
Marston, PL
中科院分区：
文献类型：
--
作者：
Marston, PL
液滴变形为球体可以产生明亮的远场散射图案，这对于相同液体的球体是不存在的。正如这里所回顾的，这些图案可以使用突变光学的方法进行分析。增强通常与两条以上光线的合并有关，因此是彩虹的概括。的模式可能是有用的计算基准和一种新的计算表明，增强的辐照度可能是显着的，与普通的彩虹散射ka小至50。一个相关的增强倾斜的圆柱体的散射也进行了审查。(C)1999 Elsevier Science Ltd.保留所有权利。
Deformation of a liquid drop into a spheroid can produce bright far-field scattering patterns that are not present for a sphere of the same liquid. As reviewed here, these patterns may be analyzed using the methods of catastrophe optics. The enhancements are typically associated with a merging of more than two rays and are therefore a generalization of the rainbow. The patterns may be useful for computational benchmarks and a novel calculation shows that the enhancement of the irradiance may be significant in comparison with ordinary rainbow scattering for ka as small as 50. A related enhancement in the scattering by tilted cylinders is also reviewed. (C) 1999 Elsevier Science Ltd. All rights reserved.