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Proceedings Paper

Surface plasmon resonance sensor based on multihole optical fiber with TiO2 layer
Author(s): Di Gao; Chunying Guan; Yaowu Wen; Hailong Wu; Libo Yuan
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Paper Abstract

A novel surface plasmon resonance (SPR) sensor based on the multihole optical fiber with TiO2 layer is proposed and numerically characterized. The finite element method(FEM) is used to analyze the characteristics of the SPR sensor. The effects of the pitch between air holes, the thicknesses of the gold film and titanium dioxide layer on the sensor characteristics are investigated, and the sensitivity of proposed sensor is also given. The results indicate that when the thickness of gold film increases, the resonance wavelength shifts to longer wavelength, and the resonance peak broadens. The spectral tuning of the plasmon resonance can be more efficiently realized by changing the TiO2 layer thickness. The maximal refractive-index resolution of the proposed sensor for aqueous analytes is 5×10-5.

Paper Details

Date Published: 30 November 2012
PDF: 5 pages
Proc. SPIE 8561, Advanced Sensor Systems and Applications V, 856110 (30 November 2012); doi: 10.1117/12.999488
Show Author Affiliations
Di Gao, Harbin Engineering Univ. (China)
Chunying Guan, Harbin Engineering Univ. (China)
Yaowu Wen, Harbin Engineering Univ. (China)
Hailong Wu, Harbin Engineering Univ. (China)
Libo Yuan, Harbin Engineering Univ. (China)

Published in SPIE Proceedings Vol. 8561:
Advanced Sensor Systems and Applications V
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan, Editor(s)

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