Interference of surface plasmon resonances causes enhanced depolarized light scattering from metal nanoparticles

被引：38
作者：
Calander, Nils [1 ]
Gryczynski, Ignacy
Gryczynski, Zygmunt
机构：
[1] Chalmers, Dept Phys, SE-41296 Gothenburg, Sweden
[2] Univ N Texas, Hlth Sci Ctr, Dept Mol Biol & Immunol, Ft Worth, TX 76107 USA
[3] Univ N Texas, Hlth Sci Ctr, Dept Cell Biol & Genet, Ft Worth, TX 76107 USA
来源：
CHEMICAL PHYSICS LETTERS | 2007年 / 434卷 / 4-6期
关键词：
D O I：
10.1016/j.cplett.2006.12.003
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We show that the strongly depolarized light scattering from noble metal particles is a result of interference of two surface plasmon resonances on the same particle. The maximum depolarization occurs between two resonances. Under favorable conditions the anisotropy of the scattering light can be much lower than what is possible for dielectric particles. This explanation is discussed in relation to earlier published experimental measurements. Comparison of experimental results with theoretical calculations provides information on the shape distribution of metallic particles in the suspension. (c) 2006 Elsevier B.V. All rights reserved.
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页码：326 / 330
页数：5
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