Open AccessHollow fiber surface plasmon resonance sensor for the detection of liquid with high refractive index
Author(s) -
Bing-Hong Liu,
Yong-Xiang Jiang,
Xiao-Song Zhu,
Xiaoli Tang,
Yi-Wei Shi
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.032349
Subject(s) - surface plasmon resonance , materials science , refractive index , fiber optic sensor , optics , sensitivity (control systems) , optical fiber , fiber , core (optical fiber) , spectral line , resonance (particle physics) , surface plasmon , optoelectronics , plasmon , nanotechnology , nanoparticle , physics , particle physics , astronomy , electronic engineering , engineering , composite material
A new kind of surface plasmon resonance (SPR) sensor based on silver-coated hollow fiber (HF) structure for the detection of liquids with high refractive index (RI) is presented. Liquid sensed medium with high RI is filled in the hollow core of the HF and its RI can be detected by measuring the transmission spectra of the HF SPR sensor. The designed sensors with different silver thicknesses are fabricated and the transmission spectra for filled liquids with different RI are measured to investigate the performances of the sensors. Theoretical analysis is also carried out to evaluate the performance. The simulation results agree well with the experimental results. Factors that might affect sensitivity and detection accuracy of the sensor are discussed. The highest sensitivity achieved is 6,607 nm/RIU, which is comparable to the sensitivities of the other reported fiber SPR sensors.