碳纳米膜光纤光谱特性研究

发布时间：2018-07-29 14:56

【摘要】：随着光纤通信通信技术,光纤传感技术,计算机技术及材料科学与技术发展,大数据信息时代,迫切需要新兴材料特别是纳米材料与现有技术相结合,构建新型光纤器件,用以满足未来大数据传输及信号处理的需要,正吸引着越来越多的研究者。作为碳原子构成的两种纳米级同素异形体,石墨烯是由单层碳原子蜂窝状排列的二维平面,碳纳米管是单层碳原子卷曲而成而一维管状结构,将二者与光纤相结合,利用覆碳纳米膜的光纤传感器进行折射率、气体、湿度、挥发性有机化合物和生物参量检测的探索,对其光谱特性进行理论和实验研究是开发器件的基础工作。本论文以碳纳米膜马赫-增德尔干涉仪和麦克尔逊干涉仪为研究目标,设计了四种不同特性的覆膜光纤结构,并对其光谱特性和调制特性进行了研究,主要研究内容包括:第一章,综述了碳纳米管和石墨烯在光纤传感领域的研究现状和总结碳纳米材料成膜方法。第二章,详细论述了马赫-增德尔干涉型光纤传感器和麦克尔逊干涉型光纤传感器的工作原理和理论模型,并对碳纳米管和石墨烯的特性进行详细的介绍,论证其在光纤传感尤其是与干涉型光纤结合制作传感器的理论可行性。第三章,对涂覆单壁碳纳米管膜的马赫-增德尔干涉型光纤传感器进行实验研究,探索了覆碳纳米管膜对光纤光谱的影响,详细介绍了覆膜传感器的制作过程,并对其在温度和折射率传感特性进行实验研究。第四章,对涂覆石墨烯膜的马赫-增德尔干涉型光纤传感器进行实验研究,研制了该类光纤传感器,并对其温度和折射率的传感特性进行了实验研究,并将获取的结果与涂覆碳纳米管的马赫-增德尔干涉型传感器的实验结果进行对比。第五章,两种不同的碳纳米膜麦克尔逊干涉型光纤传感器传感特性研究,研究了两种不同碳纳米膜对麦克尔逊干涉型光纤传感器在温度和折射率传感特性。
[Abstract]:With the development of optical fiber communication technology, optical fiber sensing technology, computer technology and material science and technology, it is urgent to combine new materials, especially nanomaterials with existing technologies, in the big data information age to construct new optical fiber devices. To meet the needs of future big data transmission and signal processing, is attracting more and more researchers. As two kinds of carbon atoms, graphene is a two-dimensional plane arranged in the shape of a monolayer carbon atom honeycomb, and carbon nanotube is a single-layer carbon atom curled and one-dimensional tubular structure, which combines them with optical fiber. Optical fiber sensors coated with carbon nanofilms are used to detect refractive index, gas, humidity, volatile organic compounds and biological parameters. Theoretical and experimental study on their spectral characteristics is the basic work of developing devices. In this paper, four kinds of fiber structures with different characteristics are designed, and their spectral and modulation characteristics are studied. The main research contents are as follows: in chapter 1, the research status of carbon nanotubes and graphene in fiber optic sensing field and the film forming methods of carbon nanomaterials are summarized. In the second chapter, the working principle and theoretical model of Mah-Zendel interferometric optical fiber sensor and Macelson interferometric optical fiber sensor are discussed in detail, and the characteristics of carbon nanotubes and graphene are introduced in detail. The theoretical feasibility of fabricating the sensor in fiber optic sensing, especially in combination with interferometric optical fiber, is demonstrated. In the third chapter, we study the effect of carbon nanotube coating on the optical fiber spectrum, and introduce the fabrication process of the coated carbon nanotube sensor in detail, which is based on the experimental study of the Mach Zendel interferometric optical fiber sensor coated with single wall carbon nanotube film, and the influence of the carbon nanotube film coating on the optical fiber spectrum is explored. The temperature and refractive index sensing characteristics are studied experimentally. In the fourth chapter, the experimental study on the Mach Zendel interferometric optical fiber sensor coated with graphene film is carried out, and the temperature and refractive index sensing characteristics of the fiber optic sensor are studied experimentally. The obtained results are compared with the experimental results of Mach-Zendel interferometric sensor coated with carbon nanotubes. In chapter 5, two different kinds of carbon nano-film McLherson interferometric optical fiber sensors are studied, and the temperature and refractive index sensing characteristics of two different carbon nano-films on McLerson interferometric optical fiber sensors are studied.
【学位授予单位】：山东科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN253;TP212

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