SCATTERING PATTERN OF A QUASITRANSPARENT CORE-SHELL PARTICLE

被引:4
作者
ALEXANDERKATZ, R
机构
[1] Departamento de Física, Divisin de Ciencias Bsicas e Ingeniería, Universidad Autnoma Metropolitana-Iztapalapa, 09340 México
来源
PHYSICAL REVIEW A | 1990年 / 42卷 / 11期
关键词
D O I
10.1103/PhysRevA.42.6816
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Nonisotropic scattering patterns showing a minimum for small and almost transparent core-shell particles are discussed. It is shown that the Rayleigh-Gans theory will not predict accurately the scattering by such particles. A law of corresponding patterns is established for small core-shell particles with an effective index of refraction as close as possible to that of the medium. Based on this nonisotropic scattering phenomenon, a method for determining the thickness itself and its distribution of very thin coatings on small colloidal particles is proposed. © 1990 The American Physical Society.
引用
收藏
页码:6816 / 6822
页数:7
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