Refractive index sensing using a linear graded plasmonic chain of metal nano-particles

被引：5
|
作者：
Horchani, Ridha [1 ]
机构：
[1] Dhofar Univ, Coll Arts & Appl Sci, Salalah, Oman
来源：
CHINESE JOURNAL OF PHYSICS | 2018年 / 56卷 / 03期
关键词：
Sensing; Nano-particles; Plasmon; GREENS TENSOR; NEAR-FIELD; RESONANCES; SURFACES;
D O I：
10.1016/j.cjph.2018.03.038
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the transmission efficiency of optical signals through a graded linear chain of spherical silver nano-particles placed parallel to a silver substrate by using the Green's function formalisms and the dipole approximation. A sensor based on plasmon resonance shifts is also discussed. The obtained spectral sensitivity is more than 273.17 nm/RIU in the visible light region, which makes such a structure an excellent candidate for liquid detection.
引用
收藏
页码：1247 / 1251
页数：5
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