Photonic crystal fiber-based plasmonic biosensor with external sensing approach

Rifat, Ahmmed Aoni and Hasan, Md Rabiul and Ahmed, Rajib Ali and Butt, Haidur (2017) Photonic crystal fiber-based plasmonic biosensor with external sensing approach. Journal of Nanophotonics, 12 (1). 012503. ISSN 1934-2608, DOI

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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 RIU-1 are achieved with the high sensor resolutions of 2.5 × 10-5 and 2.1 × 10-5 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.

Item Type: Article
Additional Information: Rifat, Ahmmed Aoni. PhD Student. Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Uncontrolled Keywords: biosensor; fiber optic sensor; photonic crystal fiber; resolution; sensitivity; surface plasmon resonance
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 10 Apr 2019 07:23
Last Modified: 10 Apr 2019 07:23

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