超细纤维
材料科学
石墨烯
光学
光纤传感器
氧化物
干涉测量
吸附
光电子学
纤维
纳米技术
化学
复合材料
物理
有机化学
冶金
作者
Jingle Zhang,Haiwei Fu,Jijun Ding,Min Zhang,Yi Zhu
出处
期刊:Applied Optics
[The Optical Society]
日期:2017-11-01
卷期号:56 (31): 8828-8828
被引量:21
摘要
A graphene-oxide-coated interferometric microfiber-sensor-based polarization-maintaining optical fiber is proposed for highly sensitive detecting for ethanol vapor concentration at room temperature in this paper. The strong sensing capability of the sensor to detect the concentration of ethanol vapor is demonstrated, taking advantage of the evanescent field enhancement and gas absorption of a graphene-oxide-coated microfiber. The transmission spectrum of the sensor varies with concentrations of ethanol vapor, and the redshift of the transmission spectrum has been analyzed for the concentration range from 0 to 80 ppm with sensitivity as high as 0.138 nm/ppm. The coated graphene oxide layer induces the evanescent field enhancement and gas selective adsorption, which improves sensitivity and selectivity of the microfiber gas sensor for ethanol vapor detection.
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