Modeling of tapered fiber-optic surface plasmon resonance sensor with enhanced sensitivity

被引:53
|
作者
Verma, Rajneesh K. [1 ]
Sharma, Anuj K. [1 ]
Gupta, Banshi D. [1 ]
机构
[1] Indian Inst Technol Delhi, Dept Phys, New Delhi 110026, India
关键词
evanescent field; optical fiber; sensitivity; sensor; surface plasmon; tapered fiber;
D O I
10.1109/LPT.2007.906840
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
Theoretical model for surface-plasmon-resonance-based fiber-optic sensor with a metal-coated uniform core sensing region sandwiched between two identical tapered fiber regions is proposed. The effect of taper ratio (TR) on the sensitivity of the sensor is studied. The study shows that the proposed probe geometry with TR lying between 1.5 and 2.0 provides the best performance. The physical reasons behind sensitivity enhancement due to tapered regions are provided.
引用
收藏
页码:1786 / 1788
页数:3
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