Spiral Photonic Crystal Fiber-Based Dual-Polarized Surface Plasmon Resonance Biosensor

被引：231

作者：

Hasan, Md. Rabiul ^{[1
]}

Akter, Sanjida ^{[1
]}

Rifat, Ahmmed A. ^{[2
]}

Rana, Sohel ^{[3
]}

Ahmed, Kawsar ^{[4
]}

Ahmed, Rajib ^{[5
]}

Subbaraman, Harish ^{[3
]}

Abbott, Derek ^{[6
]}

机构：

[1] Rajshahi Univ Engn & Technol, Dept Elect & Telecommun Engn, Rajshahi 6204, Bangladesh

[2] Australian Natl Univ, Res Sch Phys & Engn, Nonlinear Phys Ctr, Acton, ACT 2601, Australia

[3] Boise State Univ, Dept Elect & Comp Engn, Boise, ID 83725 USA

[4] Mawlana Bhashani Sci & Technol Univ, Dept Informat & Commun Technol, Santosh 1902, Bangladesh

[5] Univ Birmingham, Sch Engn, Birmingham B15 2TT, W Midlands, England

[6] Univ Adelaide, Sch Elect & Elect Engn, Adelaide, SA 5005, Australia

来源：

IEEE SENSORS JOURNAL | 2018年 / 18卷 / 01期

关键词：

Finite element method; photonic biosensor; surface plasmon resonance; sensitivity; sensing resolution; MICROSTRUCTURED OPTICAL-FIBER; REFRACTIVE-INDEX; SENSOR; RANGE; PCF;

D O I：

10.1109/JSEN.2017.2769720

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：

We numerically demonstrate a surface plasmon resonance biosensor-based on dual-polarized spiral photonic crystal fiber (PCF). Chemically stable gold material is used as the active plasmonic material, which is placed on the outer layer of the PCF to facilitate practical fabrication. Finite-element method-based numerical investigations show that the proposed biosensor shows maximum wavelength sensitivity of 4600 and 4300 nm/RIU in x- and y-polarized modes at an analyte refractive index of 1.37. Moreover, for analyte refractive index ranging from 1.33 to 1.38, maximum amplitude sensitivities of 371.5 RIU-1 and 420.4 RIU-1 are obtained in x-and y-polarized modes, respectively. In addition, the effects of changing pitch, different air hole diameter of the PCF and thickness of the gold layer on the sensing performance are also investigated. Owing to high sensitivity, improved sensing resolution and appropriate linearity characteristics, the proposed dual-polarized spiral PCF can be implemented for the detection of biological analytes, organic chemicals, biomolecules, and other unknown analytes.

引用

页码：133 / 140

页数：8

共 37 条

[1] Stacking the Equiangular Spiral [J].