Theoretical Study of Surface Plasmon Resonance-based Fiber Optic Sensor Utilizing Cobalt and Nickel Films

被引：28

作者：

Shukla, Sarika ^{[1
]}

Sharma, Navneet K. ^{[1
]}

Sajal, Vivek ^{[1
]}

机构：

[1] Jaypee Inst Informat Technol, Dept Phys & Mat Sci & Engn, A-10,Sect 62, Noida 201307, India

来源：

BRAZILIAN JOURNAL OF PHYSICS | 2016年 / 46卷 / 03期

关键词：

Surface plasmon resonance; Optical fiber; Sensor; Cobalt; Nickel; EXCITATION; SENSITIVITY; METALS;

D O I：

10.1007/s13538-016-0406-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A surface plasmon resonance (SPR) based fiber optic sensor with cobalt (Co) and nickel (Ni) layers (one layer at a time) is theoretically analyzed. The sensitivity of sensor increases linearly with increase in refractive index of sensing medium for all thicknesses of Co and Ni layers. Besides it, SPR sensor with Co layer has been shown to demonstrate higher sensitivity than that of Ni layer. The usage of Co in place of noble metals (such as gold and silver) curtails the cost of SPR sensor. Optimized thicknesses of Co and Ni layers are found to be 80 nm and 60 nm, respectively.

引用

页码：288 / 293

页数：6

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