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Proceedings Paper

Novel multichannel surface plasmon resonance photonic crystal fiber biosensor
Author(s): Mohamed Farhat O. Hameed; Yassmin K. A. Alrayk; A. A. Shaalan; Walid S. El Deeb; S. S. A. Obayya
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Paper Abstract

In this paper, a novel design of highly sensitive biosensor based on photonic crystal fiber is presented and analyzed using full vectorial finite element method. The suggested design depends on using silver layer as a plasmonic active material coated by a gold layer to protect silver oxidation. The reported sensor is based on the detection using the quasi transverse electric (TE) and quasi transverse magnetic (TM) modes which offers the possibility of multi-channel/multi-analyte sensing. The sensor geometrical parameters are optimized to achieve high sensitivity for the two polarized modes. High refractive index sensitivity of about 4750 nm/RIU (refractive index unit) and 4300 nm/RIU with corresponding resolutions of 2.1×10-5 RIU, and 2.33×10-5 RIU can be obtained for the quasi TM and quasi TE modes, respectively.

Paper Details

Date Published: 29 April 2016
PDF: 6 pages
Proc. SPIE 9899, Optical Sensing and Detection IV, 989923 (29 April 2016); doi: 10.1117/12.2227325
Show Author Affiliations
Mohamed Farhat O. Hameed, Zewail City of Science and Technology (Egypt)
Mansoura Univ. (Egypt)
Yassmin K. A. Alrayk, Zagazig Univ. (Egypt)
A. A. Shaalan, Zagazig Univ. (Egypt)
Walid S. El Deeb, Zagazig Univ. (Egypt)
S. S. A. Obayya, Zewail City of Science and Technology (Egypt)

Published in SPIE Proceedings Vol. 9899:
Optical Sensing and Detection IV
Francis Berghmans; Anna G. Mignani, Editor(s)

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