Surface plasmon resonance sensor composed of a D-Type photonic crystal fiber with a three-layer coating

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

3 Scopus Citations
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Author(s)

  • Qiang LIU
  • Shimiao WANG
  • Haiwei MU
  • Yudan SUN
  • Jin ZHAO
  • Kaiyu WANG
  • Wei LIU
  • Jingwei LV
  • Chao LIU

Detail(s)

Original languageEnglish
Pages (from-to)1352-1358
Journal / PublicationJournal of the Optical Society of America A: Optics and Image Science, and Vision
Volume40
Issue number7
Online published9 Jun 2023
Publication statusPublished - Jul 2023

Abstract

A surface plasmon resonance sensor composed of photonic crystal fibers (PCF-SPR) with an Au-TiO2-Au triple layer is designed for refractive index (RI) sensing and analyzed theoretically by the finite element method. The sensor exhibits enhanced resonance coupling between the core mode and surface plasmon polariton (SPP) mode as well as better sensitivity than the structure with a single gold coating. Furthermore, the Au-TiO2-Au tri-layer structure narrows the linewidth of the loss spectrum and improves the figure of merit (FOM). In the analyte RI range of 1.30 1.42, the maximum wavelength sensitivity is 20,300 nm/RIU, resolution is 4.93 x 106, amplitude sensitivity is 6427 RIU-1, and FOM is 559 RIU-1. The results provide insights into the design of high-performance PCF-SPR sensors. © 2023 Optica Publishing Group.

Citation Format(s)

Surface plasmon resonance sensor composed of a D-Type photonic crystal fiber with a three-layer coating. / LIU, Qiang; WANG, Shimiao; MU, Haiwei et al.
In: Journal of the Optical Society of America A: Optics and Image Science, and Vision, Vol. 40, No. 7, 07.2023, p. 1352-1358.

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