Surface Plasmon Resonance-Based Tapered Fiber Optic Sensor: Sensitivity Enhancement by Introducing a Teflon Layer Between Core and Metal Layer

被引：36
作者：
Jha, Rajan [1 ]
Verma, Rajneesh K. [1 ]
Gupta, B. D. [1 ]
机构：
[1] Indian Inst Technol, Dept Phys, New Delhi 110016, India
来源：
PLASMONICS | 2008年 / 3卷 / 04期
关键词：
Evanescent wave; Optical fiber; Sensitivity; Surface plasmon resonance; Tapered fiber;
D O I：
10.1007/s11468-008-9068-9
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Surface plasmon resonance (SPR)-based tapered fiber optic sensor with Teflon as a dielectric sandwiched between metal and tapered fiber core is proposed. The sensitivity of the sensor has been maximized using different combinations of metal and Teflon layer thicknesses for a given taper ratio. The study shows that the sensitivity of the sensor with the introduction of dielectric (Teflon) increases with the increase in the taper ratio. The maximum sensitivity achieved for a given taper ratio is around 15 times higher than the general SPR-based fiber optic sensor.
引用
收藏
页码：151 / 156
页数：6
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