Refractive index (RI) sensing by a D-shaped photonic crystal fiber with a deposited graphene–polymethyl methacrylate (PMMA) platform

IF 1.3 4区工程技术 Q4 CHEMISTRY, ANALYTICAL

Instrumentation Science & Technology Pub Date : 2022-11-02 DOI:10.1080/10739149.2022.2069116

Yu Ying, Zhi-jun Gao, Siyu Cheng, G. Si

引用次数: 0

Abstract

Abstract A D-shaped photonic crystal fiber (PCF) with graphene-polymethyl methacrylate (PMMA) stack was employed to determine the refractive index from 1.33 to 1.41 and improve the extinction ratio. The proposed sensor was numerically analyzed using the finite element method. The polishing depth, period of the graphene-PMMA stack, and number of graphene layers on the sensing performance of the proposed structure were evaluated. The results indicate that the spectrum and sensitivity may be modulated. The proposed sensor exhibits a wavelength sensitivity of 2200 nm/RIU, a wavelength resolution of 4.54 × 10−5 RIU, and linearity of 0.9918 with a high extinction ratio. Thus, this device has potential applications in PCF sensors.

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沉积石墨烯-聚甲基丙烯酸甲酯(PMMA)平台的d形光子晶体光纤折射率(RI)传感

摘要采用石墨烯-聚甲基丙烯酸甲酯（PMMA）堆叠的D形光子晶体光纤（PCF）测定了折射率从1.33到1.41，并提高了消光比。使用有限元方法对所提出的传感器进行了数值分析。评估了石墨烯PMMA堆叠的抛光深度、周期和石墨烯层数对所提出结构的传感性能的影响。结果表明，可以对光谱和灵敏度进行调制。所提出的传感器显示出2200的波长灵敏度 nm/RIU，波长分辨率4.54 × 10−5 RIU，线性度为0.9918，消光比高。因此，该设备在PCF传感器中具有潜在的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Instrumentation Science & Technology 工程技术-分析化学

CiteScore

3.50

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Instrumentation Science & Technology is an internationally acclaimed forum for fast publication of critical, peer reviewed manuscripts dealing with innovative instrument design and applications in chemistry, physics biotechnology and environmental science. Particular attention is given to state-of-the-art developments and their rapid communication to the scientific community. Emphasis is on modern instrumental concepts, though not exclusively, including detectors, sensors, data acquisition and processing, instrument control, chromatography, electrochemistry, spectroscopy of all types, electrophoresis, radiometry, relaxation methods, thermal analysis, physical property measurements, surface physics, membrane technology, microcomputer design, chip-based processes, and more. Readership includes everyone who uses instrumental techniques to conduct their research and development. They are chemists (organic, inorganic, physical, analytical, nuclear, quality control) biochemists, biotechnologists, engineers, and physicists in all of the instrumental disciplines mentioned above, in both the laboratory and chemical production environments. The journal is an important resource of instrument design and applications data.