Enhanced optical properties of metal‐coated nanoparticles
作者:
Joseph W. Haus,
H. S. Zhou,
S. Takami,
M. Hirasawa,
I. Honma,
H. Komiyama,
期刊:
Journal of Applied Physics
(AIP Available online 1993)
卷期:
Volume 73,
issue 3
页码: 1043-1048
ISSN:0021-8979
年代: 1993
DOI:10.1063/1.353290
出版商: AIP
数据来源: AIP
摘要:
Metal‐coated, nanometer‐size particles are modeled with a realistic distribution of coating thicknesses. General expressions are given for the local‐field enhancement, absorption, and nonlinear optical response. In addition, heuristic arguments are used to determine the effects of a diffuse, rather than a sharp interface. The linear and nonlinear optical properties are discussed within the context of the effective medium theory for small volume fractions. An efficient method of solution is used with the flexibility to handle an arbitrary number of coatings.
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