title: High Sensitivity Refractive Index Sensor Based on Dual-Core Photonic Crystal Fiber with Hexagonal Lattice.
abstract: 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.
authors.affiliation: College of Information Science and Engineering, Northeastern University, Shenyang 110819, China. wanghaiyangneu@gmail.com.
authors.forename: Haiyang
authors.initials: H
authors.lastname: Wang
authors.affiliation: College of Information Science and Engineering, Northeastern University, Shenyang 110819, China. yanxin@ise.neu.edu.cn.
authors.forename: Xin
authors.initials: X
authors.lastname: Yan
authors.affiliation: College of Information Science and Engineering, Northeastern University, Shenyang 110819, China. lishuguang@ise.neu.edu.cn.
authors.forename: Shuguang
authors.initials: S
authors.lastname: Li
authors.affiliation: College of Information Science and Engineering, Northeastern University, Shenyang 110819, China. guowen_an@yeah.net.
authors.forename: Guowen
authors.initials: G
authors.lastname: An
authors.affiliation: College of Information Science and Engineering, Northeastern University, Shenyang 110819, China. zhangxuenan@ise.neu.edu.cn.
authors.forename: Xuenan
authors.initials: X
authors.lastname: Zhang
keywords: high sensitivity; photonic crystal fiber; refractive index sensor