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Optical Engineering

Effects of heterogeneity on the surface plasmon resonance biosensor based on three-hole photonic crystal fiber
Author(s): Pibin Bing; Zhongyang Li; Jianquan Yao; Ying Lu
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Paper Abstract

A surface plasmon resonance biosensor based on three-hole photonic crystal fiber (PCF) is analyzed by the finite element method. The results demonstrate that the biosensor will exhibit different loss spectra characteristics under the conditions of nonuniform thicknesses of the auxiliary dielectric layer, the gold layer, and the biolayer in the three-hole PCF, respectively. Furthermore, the sensing properties in both areas of resonant wavelength and intensity detection are discussed. Numerical results show excellent sensing characteristics when the thickness of the auxiliary dielectric layer is s=1  μm and the gold d gold =40  nm , respectively. The sensor resolution of the biolayer thickness is demonstrated more than 0.05 nm in the vicinity of 0.6 μm with the amplitude-based method.

Paper Details

Date Published: 7 May 2013
PDF: 5 pages
Opt. Eng. 52(5) 054401 doi: 10.1117/1.OE.52.5.054401
Published in: Optical Engineering Volume 52, Issue 5
Show Author Affiliations
Pibin Bing, North China Univ. of Water Resources and Electric Power (China)
Zhongyang Li, North China Univ. of Water Resources and Electric Power (China)
Jianquan Yao, Tianjin Univ. (China)
Ying Lu, Tianjin Univ. (China)


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