Guibin Yuan, Shufei Han, Min Yuan, Xinjun Huang, Shengli Pu
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引用次数: 0
Abstract
A refractive index (RI) and liquid level sensing scheme based on a multimode-no-core fiber tip with high sensitivity and precision is proposed and experimentally demonstrated by fusing a tapered no-core fiber (NCF) with a segment of multimode fiber. A gold film is plated on the side surface of the uniform waist region of the tapered NCF to stimulate surface plasmon resonance. The as-fabricated sensor achieves RI sensitivities of 16500 and 24000 nm/RIU (refractive index unit) in the RI ranges of 1.34 to 1.38 and 1.39 to 1.41, respectively. High-precision liquid level sensing with a range from 0.1 to 2.0 mm is obtained simultaneously. The designed sensing structure in this work offers simplicity and ease of implementation, which makes it a promising option for high-sensitivity and high-precision sensing applications.
期刊介绍：
Sensors and Materials is designed to provide a forum for people working in the multidisciplinary fields of sensing technology, and publishes contributions describing original work in the experimental and theoretical fields, aimed at understanding sensing technology, related materials, associated phenomena, and applied systems. Expository review papers and short notes are also acceptable.
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