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Effects of TiO_2 on the performance of silver coated on side-polished optical fiber for alcohol sensing applications

机译：TiO_2对酒精传感应用侧抛光光纤上镀银性能的影响

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摘要

This work reports the experimental and numerical investigations on the effect of titanium oxide (TiO2) integrated on the optical fiber silver (Ag) surface plasmon resonance (SPR) sensors. In this paper, the numerical simulation is also analyzed using the finite element method (FEM) which shows good agreement. Results are compared with the experimental findings, focusing on the SPR phenomena for refractive index sensing using side-polished optical fiber, where the characteristics of the Ag layer with the integration of TiO2 are optimized. The essential parameters include the thickness of Ag namely 20 nm, 30 nm and 40 nm for optimization studies of SPR properties. TiO2 was then coated on the Ag thin layer to sense isopropanol at different concentration. It is shown that the combination of a 30 nm thickness of Ag layer with a dielectric TiO2 improves sensor performance in terms of sensitivity reading of 268 nm/RIU with a detection limit of 0.012. The main interest is to develop the device with cost effective, ease fabrication and less cumbersome of sensors using TiO2 which one of an alternative material to defeat the oxidation process and avoid charge recombination. If the sensitivity increases at a higher wavelength, it indicates that the TiO2 holds great potential in photonic applications.
机译：这项工作报告了集成在光纤银（Ag）表面等离子体激元共振（SPR）传感器上的二氧化钛（TiO2）效果的实验和数值研究。在本文中，还使用有限元方法（FEM）对数值模拟进行了分析，该方法显示出良好的一致性。将结果与实验结果进行比较，重点放在使用侧面抛光光纤进行折射率传感的SPR现象上，其中优化了与TiO2结合的Ag层的特性。基本参数包括Ag的厚度，即20 nm，30 nm和40 nm，用于SPR性能的优化研究。然后将TiO2涂覆在Ag薄层上，以感测不同浓度的异丙醇。结果表明，将厚度为30 nm的Ag层与介电TiO2结合使用，可在268 nm / RIU的灵敏度读数和0.012的检测极限下提高传感器性能。主要兴趣是开发一种具有成本效益，易于制造且使用TiO2的传感器较少麻烦的设备，而TiO2是克服氧化过程并避免电荷重组的替代材料之一。如果灵敏度在较高的波长下增加，则表明TiO2在光子应用中具有巨大的潜力。

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  • 来源
    《Optical fiber technology》 |2019年第7期|183-187|共5页
  • 作者

    Kanmani R.; Zainuddin N. A. M.; Rusdi M. F. M.; Harun S. W.; Ahmed K.; Amiri I. S.; Zakaria R.;

  • 作者单位

    Sri Krishna Coll Technol, Dept Informat Technol, Coimbatore, Tamil Nadu, India;

    Univ Malaya, Fac Sci, Photon Res Ctr, Kuala Lumpur 50603, Malaysia;

    Univ Malaya, Fac Engn, Dept Elect Engn, Kuala Lumpur 50603, Malaysia;

    Univ Malaya, Fac Engn, Dept Elect Engn, Kuala Lumpur 50603, Malaysia;

    Mawlana Bhashani Sci & Technol Univ, Dept Informat & Commun Technol, Santosh 1902, Tangail, Bangladesh|Mawlana Bhashani Sci & Technol Univ, Grp Biophotomati, Santosh 1902, Tangail, Bangladesh;

    Ton Duc Thang Univ, Adv Inst Mat Sci, Computat Opt Res Grp, Ho Chi Minh City, Vietnam|Ton Duc Thang Univ, Fac Appl Sci, Ho Chi Minh City, Vietnam;

    Univ Malaya, Fac Sci, Photon Res Ctr, Kuala Lumpur 50603, Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Surface plasmon resonance (SPR); Fiber Optic Alcohol Sensor; Finite element method (FEM);

    机译：表面等离子体共振（SPR）;光纤酒精传感器;有限元法（FEM）;

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