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

We propose a sixfold photonic quasi-crystal fiber with a trapezoidal analyte channel based on surface plasmon resonance for the detection of high-refractive-index (RI) liquid analytes and numerically analyze its sensing performance for different liquid analyte refractive indices and heights using th...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 2019-03, Vol.25 (2), p.1-9
Main Authors: Suoda Chu, Nakkeeran, K., Abobaker, Abdosllam M., Aphale, Sumeet S., Babu, P. Ramesh, Senthilnathan, K.
Format: Article
Language:English
Subjects:
Biomedical optical imaging
Biosensor
Biosensors
Crystal fibers
Crystal structure
Design analysis
Detection
Feasibility studies
Finite element method
Liquids
Optical device fabrication
Optical refraction
Organic chemicals
Organic chemistry
Photonic crystals
photonic quasi-crystal fiber
Refractive index
refractive index sensor
Refractivity
sensitivity
Sensitivity analysis
Surface plasmon resonance
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Summary:We propose a sixfold photonic quasi-crystal fiber with a trapezoidal analyte channel based on surface plasmon resonance for the detection of high-refractive-index (RI) liquid analytes and numerically analyze 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 fiber, 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 ratios of 20%, 25%, 30%, and 50% of the maximum channel height, the proposed biosensor exhibits linear sensing performance with a maximum RI sensitivity of 4400, 6100, 8000, and 17000 nm/RIU, respectively, for analytes RI range of 1.44-1.57, 1.41-1.51, 1.40-1.49, and 1.40-1.44. 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-RI liquid analytes.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2018.2873481