Optical properties of Au/Ag core/shell nanoshuttles

被引：56
|
作者：
Li, M. [1 ]
Zhang, Z. S. [1 ]
Zhang, X. [1 ]
Li, K. Y. [1 ]
Yu, X. F. [1 ]
机构：
[1] Wuhan Univ, Minist Educ, Dept Phys, Key Lab Acoust & Photon Mat & Devices, Wuhan 430072, Peoples R China
来源：
OPTICS EXPRESS | 2008年 / 16卷 / 18期
关键词：
D O I：
10.1364/OE.16.014288
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Au/Ag nanoshuttles with sharp tips at both ends have been synthesized in glycine solution by chemically depositing silver on gold nanorods. Strong local field in the Au/Ag nanoshuttles enhanced by longitudinal surface plasmon resonance (LSPR) were investigated by theoretical calculations and experimental measurements. At the corresponding LSPR wavelengths, the extinction cross section and nonlinear refraction of the Au/Ag nanoshuttles are about 1.5 and 8.0 times of those of the original Au nanorods, respectively. (c) 2008 Optical Society of America.
引用
收藏
页码：14288 / 14293
页数：6
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