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Indexed by:Journal Papers

Date of Publication:2015-12-01

Journal:OPTICS COMMUNICATIONS

Included Journals:SCIE、EI、Scopus

Volume:356

Page Number:212-217

ISSN No.:0030-4018

Key Words:Fiber optics; Surface plasmon; Glass waveguides; Surface waves

Abstract:A fiber optic surface plasmon resonance (SPR) sensor based on light guiding flexible fused silica tubing with its cladding stripped and coated with gold film as SPR sensing area is presented. Theoretical simulate of the proposed sensing structure for different sensing area length and different film thickness of sensors is done to obtain the suitable parameters, and the simulation for different refractive index is carried out. Meanwhile, the experiments for refractive index (RI) measurement have been demonstrated using the developed sensor, 400 mu m optical fiber sensor and 125 mu m optical fiber sensor. Experimental results have shown the capillary sensor has advantage in terms of sensitivity and resolution. The capillary sensor is also used for detecting and monitoring biochemical binding and dissociation processes of the RNase B and Con A. It is proved that the sensor with chemical modification can be implemented for specific biochemical sensing (C) 2015 Elsevier B.V. All rights reserved.