Journal
APPLIED OPTICS
Volume 56, Issue 5, Pages 1550-1555Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.56.001550
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Funding
- National Natural Science Foundation of China (NSFC) [61275125, 61308046]
- Basic Research Program funds of ShenZhen
- High-level Talents Project of Guangdong Province
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Sensing characteristics of D-shaped photonic crystal fiber surface plasmon resonance sensors are investigated in this paper. The finite element method is used to study the influences of side-polished depths and sensing layer thicknesses on our sensors. The results show that the sensitivity increases with the increase of the sensing layer thickness but decreases a little with the increase of the side-polished depth in a certain range. The influences of the side-polished lengths on our sensors are studied experimentally. It is revealed that a short side-polished length is conducive to improving the performance of our sensors. The highest sensitivity of our sensors is obtained to be 7381.0 nm/RIU in the refractive index environment of 1.40-1.42, when the side-polished length is controlled at 10 mm. The novel D-shaped photonic crystal fiber surface plasmon resonance sensors will bring new vitality to the application of biochemistry. (C) 2017 Optical Society of America
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