Comparison of Surface Plasmon Resonance and Localized Surface Plasmon Resonance-based optical fibre sensors

被引：30
|
作者：
Cao, J. [1 ]
Galbraith, E. K. [1 ]
Sun, T. [1 ]
Grattan, K. T. V. [1 ]
机构：
[1] City Univ London, Sch Engn & Math Sci, London EC1V 0HB, England
来源：
SENSORS & THEIR APPLICATIONS XVI | 2011年 / 307卷
关键词：
GOLD NANORODS;
D O I：
10.1088/1742-6596/307/1/012050
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this work, two of surface plasmon resonance (SPR) and localized surface plasmon resonance (LSPR)-based optical fibre sensors have been successfully developed and cross-compared. With one SPR sensor being coated with a thin layer of gold film and the other gold-nanorods (GNRs), forming a LSPR sensor, both sensors are subjected to various refractive index changes. As a result their sensitivities are measured in the form of resonance wavelength shift as a function of refractive index variation. The results demonstrate that the thin-film coated SPR sensor has much higher sensitivity than that of GNRs coated LSPR sensor but with worse linearity.
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页数：5
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