Surface plasmon resonance sensor composed of microstructured optical fibers for monitoring of external and internal environments in biological and environmental sensing

Wei Liu; Chao Liu; Jianxin Wang; Jingwei Lv; Yan Lv; Lin Yang; Ni An; Zao Yi; Qiang Liu; Chunjie Hu; Paul K. Chu

Results in Physics (Apr 2023)

Surface plasmon resonance sensor composed of microstructured optical fibers for monitoring of external and internal environments in biological and environmental sensing

Wei Liu,
Chao Liu,
Jianxin Wang,
Jingwei Lv,
Yan Lv,
Lin Yang,
Ni An,
Zao Yi,
Qiang Liu,
Chunjie Hu,
Paul K. Chu

Affiliations

Wei Liu: School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China
Chao Liu: School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China; Corresponding author.
Jianxin Wang: School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China
Jingwei Lv: School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China
Yan Lv: School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China
Lin Yang: School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China
Ni An: School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China
Zao Yi: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China
Qiang Liu: School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China
Chunjie Hu: Department of Gynaecology and Obstetrics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
Paul K. Chu: Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China

Journal volume & issue: Vol. 47
p. 106365

Abstract

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To achieve simultaneous detection of analytes with different states in internal and external environments, A microstructured optical fibers (MOFs) biochemical sensor based on surface plasmon resonance (SPR) is proposed. The micro-polished dual-open-loop structure with anti-corrosive gold as the sensing layer is designed, which greatly improves the phase matching between fundamental mode and plasmonic mode to further stimulate SPR effect. Numerical simulation by the full-vector finite element method (FEM) reveals that the even mode for y-polarized state has better sensing properties due to the more eminent electric field distribution and shift of the confinement loss peak. In order to better evaluate and analyze the output characteristics of this sensor, the wavelength modulation and amplitude interrogation methods are adopted. The results manifest that the maximum wavelength sensitivity (WS) of 20,000 nm/RIU and amplitude sensitivity (AS) of 208.21 RIU−1 with resolution (R) of 10−6 order can be acquired in operable infrared region (900–2,750 nm). Furthermore, this sensor has realized a broad range of detection for gas and liquid analytes with RIs from 1.00 to 1.38. On account of its simple structure, low cost, and industrial compatibility, this sensor has large potential in environmental and biological applications such as atmospheric monitoring, sewage treatment, food safety, humoral regulation, and medical diagnosis.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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