Special Section on Nanoplasmonics for Biosensing, Enhanced Light-Matter Interaction, and Spectral Engineering

Photonic crystal fiber-based plasmonic biosensor with external sensing approach

[+] Author Affiliations
Ahmmed A. Rifat

Australian National University, Nonlinear Physics Centre, Research School of Physics and Engineering, Canberra, Australia

University of Malaya, Integrated Lightwave Research Group, Department of Electrical Engineering, Kuala Lumpur, Malaysia

Md. Rabiul Hasan

Rajshahi University of Engineering and Technology, Department of Electronics and Telecommunication Engineering, Rajshahi, Bangladesh

Rajib Ahmed, Haidur Butt

University of Birmingham, Nanotechnology Laboratory, School of Engineering, Birmingham, United Kingdom

J. Nanophoton. 12(1), 012503 (Jun 19, 2017). doi:10.1117/1.JNP.12.012503
History: Received March 24, 2017; Accepted June 5, 2017
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Abstract.  We propose a simple photonic crystal fiber (PCF) biosensor based on the surface plasmon resonance effect. The sensing properties are characterized using the finite element method. Chemically stable gold material is deposited on the outer surface of the PCF to realize the practical sensing approach. The performance of the modeled biosensor is investigated in terms of wavelength sensitivity, amplitude sensitivity, sensor resolution, and linearity of the resonant wavelength with the variation of structural parameters. In the sensing range of 1.33 to 1.37, maximum sensitivities of 4000  nm/RIU and 478  RIU1 are achieved with the high sensor resolutions of 2.5×105 and 2.1×105  RIU using wavelength and amplitude interrogation methods, respectively. The designed biosensor will reduce fabrication complexity due to its simple and realistic hexagonal lattice structure. It is anticipated that the proposed biosensor may find possible applications for unknown biological and biochemical analyte detections with a high degree of accuracy.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Ahmmed A. Rifat ; Md. Rabiul Hasan ; Rajib Ahmed and Haidur Butt
"Photonic crystal fiber-based plasmonic biosensor with external sensing approach", J. Nanophoton. 12(1), 012503 (Jun 19, 2017). ; http://dx.doi.org/10.1117/1.JNP.12.012503


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