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Design and theoretical analysis of a photonic crystal fiber based on surface plasmon resonance sensing

  • Chao Liu*
  • , Famei Wang
  • , Jingwei Lv
  • , Tao Sun
  • , Qiang Liu
  • , Haiwei Mu
  • , Paul K. Chu
  • *Corresponding author for this work

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

    Abstract

    A photonic crystal fiber based on surface plasmon resonance (PCF-SPR) sensing of a silver layer is investigated. The sensor has two advantages: polarization independence and less noble metal consumption. The coupling characteristics and sensing performance of the sensor are numerically investigated by the finite-element method employing the COMSOL Multiphysics® software. The optical loss spectrum of the PCF-SPR sensor can be easily tuned by varying the parameters of the structure. The defined amplitude sensitivity is 4398 dB/RIU and spectral sensitivity is 4500 nm/RIU corresponding to resolution of 2.27×10-6 RIU and 2.22×10-5 RIU, respectively.
    Original languageEnglish
    Article number93050
    JournalJournal of Nanophotonics
    Volume9
    Issue number1
    DOIs
    Publication statusPublished - Jan 2015

    Research Keywords

    • COMSOL Multiphysics<sup>®</sup>
    • finite element method
    • photonic crystal fiber
    • sensitivity
    • surface plasmon resonance sensor

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