High-sensitivity ring-core photonic crystal fiber sensor based on surface plasmon resonance for ultra-low refractive index detection

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Luhui Xu
  • Chao Peng
  • Tongyu Meng
  • Ying Shi
  • Qiang Liu
  • Jingwei Lv
  • Wei Liu
  • Chao Liu

Detail(s)

Original languageEnglish
Article number2350216
Journal / PublicationModern Physics Letters B
Volume38
Issue number2
Online published18 Aug 2023
Publication statusPublished - 20 Jan 2024

Abstract

A novel ring-core photonic crystal fiber (PCF) sensor based on surface plasmon resonance (SPR) is designed for ultra-low refractive index detection. A gold nanowire is coated on the outer surface of the PCF as a plasma material, greatly facilitating the manufacturing of the sensor. To achieve real-time detection, the analyte is located on the outside of the sensor. The mode coupling effect and main performance parameters are analyzed through finite element method. In addition, by optimizing several important structural parameters, the overall performance of the sensor has been greatly improved. The optimized sensor shows a maximum wavelength sensitivity of 26,000 nm/RIU in the refractive index range of 1.14-1.26, maximum amplitude sensitivity of 300 RIU-1, as well as minimum resolution of 3.85 × 10-6 RIU. The PCF-SPR sensor with outstanding properties has great potential in applications such as oil logging, biosensing, and chemical monitoring. © 2023 World Scientific Publishing Company.

Research Area(s)

  • low refractive index sensing, Optical fiber sensing, photonic crystal fiber, surface plasmon resonance

Citation Format(s)

High-sensitivity ring-core photonic crystal fiber sensor based on surface plasmon resonance for ultra-low refractive index detection. / Xu, Luhui; Peng, Chao; Meng, Tongyu et al.
In: Modern Physics Letters B, Vol. 38, No. 2, 2350216, 20.01.2024.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review