A closed-form analytical model for single nanoshells

被引:57
作者
Alam, Mehboob [1 ]
Massoud, Yehia [1 ]
机构
[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA
关键词
Mie theory; nanoshells; scattering;
D O I
10.1109/TNANO.2006.874050
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, we develop an accurate analytical closed-form model for the frequency resonance and scattering characteristics of single nanoshells. Nanoshells, dielectric spheres that are coated with noble metal, posses excellent tunability of their resonance frequency as a function of the relative sizes of the core and the thickness of the shell. Consequently, nanoshells offer much improved sensitivity, specificity, and cost-effectiveness in their applications. Simulation results show that our new closed-form model matches very closely with the exact solution for typical nanoshell configurations used in near-infrared applications.
引用
收藏
页码:265 / 272
页数:8
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