Influence of surface roughness on the elastic-light scattering patterns of micron-sized aerosol particles

被引：12

作者：

Auger, J. -C. ^{[1
,2
]}

Fernandes, G. E. ^{[1
,2
]}

Aptowicz, K. B. ^{[3
]}

Pan, Y. -L. ^{[4
]}

Chang, R. K. ^{[1
,2
]}

机构：

[1] Yale Univ, Ctr Laser Diagnost, New Haven, CT 06520 USA

[2] Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA

[3] W Chester Univ, Dept Phys, W Chester, PA 19383 USA

[4] USA, Res Lab, Adelphi, MD 20783 USA

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2010年 / 99卷 / 1-2期

关键词：

CLASSIFICATION;

D O I：

10.1007/s00340-010-3914-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The relation between the surface roughness of aerosol particles and the appearance of island-like features in their angle-resolved elastic-light scattering patterns is investigated both experimentally and with numerical simulation. Elastic scattering patterns of polystyrene spheres, Bacillus subtilis spores and cells, and NaCl crystals are measured and statistical properties of the island-like intensity features in their patterns are presented. The island-like features for each class of particle are found to be similar; however, principal-component analysis applied to extracted features is able to differentiate between some of the particle classes. Numerically calculated scattering patterns of Chebyshev particles and aggregates of spheres are analyzed and show qualitative agreement with experimental results.

引用

页码：229 / 234

页数：6

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