Nanoparticle sensing using whispering-gallery-mode resonators: Plasmonic and Rayleigh scatterers

被引：30
|
作者：
Shen, Yuecheng [1 ]
Shen, Jung-Tsung [1 ]
机构：
[1] Washington Univ, Dept Elect & Syst Engn, St Louis, MO 63130 USA
来源：
PHYSICAL REVIEW A | 2012年 / 85卷 / 01期
关键词：
D O I：
10.1103/PhysRevA.85.013801
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The theory of nanoparticle sensing using whispering-gallery-mode resonators is investigated for both plasmonic and Rayleigh scatterers. In particular, we describe how to extract critical information, such as the number of particles adsorbed, from the transmission spectrum. The effects of the interference due to multiple interparticle scatterings are elucidated. Analytical expressions are derived so as to enable further numerical analysis.
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页数：7
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