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Analysis of Nanoparticle-Based Surface Plasmon Resonance Fiber Optic Sensor

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Abstract:

Theoretical analysis of surface plasmon resonance ber optic sensor based on a core-shell nanoparticle layer is presented. The sensing structure consists of a standard step-indexmultimode optical ber whose bare fused silica core is coated by Ag core-shell nanoparticlemonolayer. Its optical constants were obtained using e ective media (Maxwell-Garnett) theory.Theoretical model based on thin- lm optics approach is used to compute the normalized powertransfer through the sensing part of the ber in spectral domain. The computed results areused to obtain the sensitivity and detection accuracy of the sensing scheme with respect tothe concentration of analyte components. The inuence of nanoparticle geometry on the sensorperformance is discussed.

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Periodical:

Key Engineering Materials (Volume 605)

Pages:

131-134

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.605.131

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Online since:

April 2014

Authors:

Dalibor Ciprian*, Petr Hlubina

Keywords:

Dispersion, Fiber Optic Sensor, Optical Fiber, Surface Plasmon Resonance

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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