Title :
Self-Referencing in Optical-Fiber Surface Plasmon Resonance Sensors
Author :
Zhang, Zhiyi ; Zhao, Ping ; Sun, Fengguo ; Xiao, Gaozhi ; Wu, Yaming
Author_Institution :
Nat. Res. Council Canada, Ottawa
Abstract :
We have achieved a self-referencing function in optical-fiber surface plasmon resonance (SPR) sensors by fabricating two tandem SPR sections in a single optical fiber and by coating one of the sections with a reference material to create an additional resonance at a longer wavelength for referencing, while keeping the other one for regular sensing. By choosing a reference material with a very large thermooptic coefficient, we have demonstrated an SPR optical fiber sensor that can, by itself, correct the effect of temperature variation in the testing medium.
Keywords :
fibre optic sensors; surface plasmon resonance; thermo-optical effects; optical-fiber surface plasmon resonance sensors; reference material; self-referencing function; temperature variation effect; testing medium; thermooptic coefficient; Coatings; Optical fiber sensors; Optical fibers; Optical materials; Optical sensors; Optical surface waves; Plasmons; Resonance; Surface waves; Temperature sensors; Optical fibers; self-referencing; sensor; surface plasmon resonance (SPR); temperature correction;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.909669
