A novel biosensor based on a coupled surface plasmon nanostructure

Ma, Youqiao, Farrell, Gerald, Semenova, Yuliya, Chan, Hau Ping and Wu, Qiang (2012) A novel biosensor based on a coupled surface plasmon nanostructure. In: Proceedings of OFS2012 22nd International Conference on Optical Fiber Sensors. SPIE, Bellingham, 84215R. ISBN 9780819491039

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Official URL: http://dx.doi.org/10.1117/12.975005

Abstract

An enhanced refractive index (RI) sensor with combination of long period fiber grating (LPG) and a small core singlemode fiber (SCSMF) structure is proposed and developed. Since the LPG and SCSMF transmission spectra experience a blue and red shift respectively as the surrounding RI (SRI) increases, the sensitivity is improved by measuring the separation between the resonant wavelengths of the LPG and SCSMF structures. Experimental results show that the sensor has a sensitivity of 1028 nm/SRI unit in the SRI range from 1.422 to 1.429, which is higher than individual sensitivities of either structure alone used in the experiment.

Item Type: Book Section
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Ay Okpokam
Date Deposited: 29 May 2015 13:35
Last Modified: 10 Aug 2015 11:12
URI: http://nrl.northumbria.ac.uk/id/eprint/22691

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