Mean-field approximation of Mie scattering by fractal aggregates of identical spheres

被引：82

作者：

Botet, R ^{[1
]}

Rannou, P ^{[1
]}

Cabane, M ^{[1
]}

机构：

[1] UNIV PARIS 06,SERV AERON,F-75252 PARIS 05,FRANCE

来源：

APPLIED OPTICS | 1997年 / 36卷 / 33期

关键词：

fractal aggregate; Mie scattering; mean field;

D O I：

10.1364/AO.36.008791

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We apply the recent exact theory of multiple electromagnetic scattering by sphere aggregates to statistically isotropic finite fractal clusters of identical spheres. In the mean field approximation the usual Mie expansion of the scattered wave is shown to be still valid, with renormalized Mie coefficients as the multipolar terms. We give an efficient method of computing these coefficients, and we compare this mean-field approach with exact results for silica aggregates of fractal dimension 2. (C) 1997 Optical Society of America.

引用

页码：8791 / 8797

页数：7

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