High Sensitivity Refractive Index Sensor Based on Dual-Core Photonic Crystal Fiber with Hexagonal Lattice

被引：16
|
作者：
Wang, Haiyang [1 ]
Yan, Xin [1 ]
Li, Shuguang [1 ]
An, Guowen [1 ]
Zhang, Xuenan [1 ]
机构：
[1] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Peoples R China
来源：
SENSORS | 2016年 / 16卷 / 10期
基金：
中国国家自然科学基金;
关键词：
photonic crystal fiber; refractive index sensor; high sensitivity; SURFACE-PLASMON RESONANCE; OPTICAL-FIBERS; PCF; GENERATION; PULSE; BAND;
D O I：
10.3390/s16101655
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A refractive index sensor based on dual-core photonic crystal fiber (PCF) with hexagonal lattice is proposed. The effects of geometrical parameters of the PCF on performances of the sensor are investigated by using the finite element method (FEM). Two fiber cores are separated by two air holes filled with the analyte whose refractive index is in the range of 1.33-1.41. Numerical simulation results show that the highest sensitivity can be up to 22,983 nm/RIU(refractive index unit) when the analyte refractive index is 1.41. The lowest sensitivity can reach to 21,679 nm/RIU when the analyte refractive index is 1.33. The sensor we proposed has significant advantages in the field of biomolecule detection as it provides a wide-range of detection with high sensitivity.
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页数：10
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