Design and Analysis of Surface Plasmon Resonance based Photonic Quasi-Crystal Fibre Biosensor for High Refractive Index Liquid Analytes

Suoda Chu (Corresponding Author), K. Nakkeeran , Abdosllam M. Abobaker, Sumeet S. Aphale, P. Ramesh Babu, K. Senthilnathan

Research output: Contribution to journalArticle

20 Citations (Scopus)
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We propose a six-fold photonic quasi-crystal fibre with a trapezoidal analyte channel based on surface plasmon resonance for the detection of high refractive index liquid analytes and numerically analyse its sensing performance for different liquid analyte refractive indices and heights using the finite element method. In contrast to the common D-shaped structure photonic crystal fibre, we design a trapezoidal analyte channel to investigate the role of the sample liquid height within the channel and discussed the feasibility of the fabrication process. We find that with various liquid analyte heights ratio of 20%, 25%, 30% and 50% of the maximum channel height, the proposed biosensor exhibits linear sensing performance with a maximum refractive index (RI) sensitivity of 4400 nm/RIU, 6100 nm/RIU, 8000 nm/RIU and 17000 nm/RIU respectively, for analytes RI range of 1.44 to 1.57, 1.41 to 1.51, 1.40 to 1.49 and 1.40 to 1.44. This sensor is suitable to detect various high RI chemicals, biochemicals and organic chemical samples. Owing to its simple structure of the proposed biosensor with promising linear sensing performance, we envisage that this biosensor could turn out to be a versatile and competitive instrument for the detection of high refractive index liquid analytes.
Original languageEnglish
Article number6900309
Number of pages9
JournalIEEE Journal of Selected Topics in Quantum Electronics
Issue number2
Early online date1 Oct 2018
Publication statusPublished - 1 Mar 2019



  • Biosensor
  • Photonic Quasi-crystal Fibre
  • Refractive Index Sensor
  • Sensitivity
  • Surface Plasmon Resonance
  • surface plasmon resonance
  • photonic quasi-crystal fiber
  • sensitivity
  • refractive index sensor

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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