期刊
IEEE SENSORS JOURNAL
卷 20, 期 15, 页码 8528-8534出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2020.2983263
关键词
Etched fiber Bragg grating sensor; metal oxide coating; refractometric sensor; chemical sensing
资金
- Department of Atomic Energy (DAE), Board of Research in Nuclear Science (BRNS) India [34/14/15/2018-BRNS/10105 [DAE (6)/2018-19/575/ECE]]
This paper reports on a single-mode etched fiber Bragg grating (eFBG) sensor coated with 99.99% pure titanium dioxide (TiO2) having enhanced sensitivity for sensing of industrial chemicals such as glycerine. Cladding of grating section of single-mode fiber has been partially etched to maintain the integrity of fiber structure, yet high sensitivity is achieved by the deposition of a thin film of TiO2 coating. Comparisons of sensitivities achieved with and without coat ing have been shown. The metal oxide coating helps enhance sensitivity by nearly 20% by increasing the interaction of the evanescent field leaking into analyte. The proposed sensor has recorded a maximum sensitivity of 11.9 nm/RIU, which is more than any other single-mode etched FBG sensor delineated so far for sensing of glycerine. In the presented paper, the characterization of coating material with X-ray diffraction (XRD), and of the resultant sensor with Atomic Force Microscopy (AFM) and Field Emission Scanning Electron Microscope (FESEM) has also been carried out as part of experimental analysis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据