Three-core photonic crystal fiber surface plasmon resonance sensor

被引：37

作者：

Tong, Kai ^{[1
]}

Wang, Fucheng ^{[1
]}

Wang, Meiting ^{[2
]}

Dang, Peng ^{[1
]}

Wang, Yunxuan ^{[1
]}

机构：

[1] Yanshan Univ, Sch Elect Engn, Qinhuangdao 066004, Peoples R China

[2] Yanshan Univ, Coll Liren, Qinhuangdao 066004, Peoples R China

来源：

OPTICAL FIBER TECHNOLOGY | 2018年 / 46卷

基金：

中国国家自然科学基金;

关键词：

Surface plasmon resonance; photonic crystal fiber; Biosensor; Finite element method; Refractive index sensitivity; DESIGN;

D O I：

10.1016/j.yofte.2018.11.014

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：

A three-core photonic crystal fiber (PCF) surface plasmon resonance (SPR) biosensor with high performance is presented. The structure of the biosensor is easy to implement and has good repetition. The outer layer of the fiber structure is gold film. The analyte is placed on the surface of the gold film. The Full vector finite element method is used to numerical simulation and analysis the transmission mode and characteristics of the three-core PCF-SPR biosensor. The influence of sensor structure parameters on sensing performance is investigated. The structure parameters are optimized. The optimum structure parameters are given. The refractive index (RI) sensitivity of the sensor is discussed there. The results show that the average refractive index sensitivity of the sensor is 3435 nm/RIU in the sensing range of 1.33-1.40, and the resolution is 2.91 x 10(-6) RIU. The sensor has the advantages of high sensitivity and high resolution. And it can be applied to real-time detection of the bio-molecules and small drug-molecules.

引用

页码：306 / 310

页数：5

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