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High sensitivity refractive index sensor based on micro-fiber with micro-arched transition

机译：基于微纤维微拱形过渡的高灵敏度折射率传感器

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摘要

A novel refractive index (RI) sensor based on micro-fiber with micro-arched transition (MMAT) was proposed. The power extinction ratio of interference spectra was enhanced by the micro-arched transition. Although the waist diameter of micro-fiber was less than 6 mu m, the power extinction ratio was larger than 10 dB, which was critical to the spectral dip measurement. The relationship between waist diameter of micro-fiber and RI sensitivity was systematically investigated. It turned out that higher RI sensitivity of MMAT could be obtained by decreasing the waist diameter of micro-fiber. While the waist diameter was 5.6 mu m the RI sensitivities of MMATs were up to 2739.8 nm/RIU, 4515.7 nm/RIU and 12,620.0 nm/RIU in the RI range of 1.333-1.3580, 1.3705-1.3905 and 1.3940-1.3980 respectively. The sensor was applied to detecting the concentrations of bovine serum albumin (BSA) solutions and showed the sensitivity of 0.3 nm/(mg/ml). Owing to its small volume and high sensitivity, this kind of senor can be expected to widely apply in fields of biology, chemistry and physics.
机译：提出了一种基于微纤维的微拱形过渡（MMAT）的新型折射率（RI）传感器。通过微弓形跃迁提高了干扰光谱的功率消光比。尽管超细纤维的腰部直径小于6微米，但功率消光比却大于10 dB，这对于光谱倾角测量至关重要。系统研究了超细纤维腰围直径与RI敏感性之间的关系。事实证明，通过减小微纤维的腰部直径可以获得更高的MMAT RI敏感性。当腰部直径为5.6μm时，MMAT的RI灵敏度分别为RI范围1.333-1.3580、1.3705-1.3905和1.3940-1.3980，分别达到2739.8 nm / RIU，4515.7 nm / RIU和12,620.0 nm / RIU。该传感器用于检测牛血清白蛋白（BSA）溶液的浓度，灵敏度为0.3 nm /（mg / ml）。由于其体积小，灵敏度高，有望在生物学，化学和物理领域广泛应用。

著录项

  • 来源
    《Optical fiber technology》 |2019年第7期|13-18|共6页
  • 作者

    Xing Zengshan; Wang Yanzhen; Tang Li; Yu Jianhui; Guan Heyuan; Lu Huihui; Fang Junbin; Luo Yunhan; Zhong Yongchun; Chen Zhe;

  • 作者单位

    Jinan Univ, Dept Optoelect Engn, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Dept Optoelect Engn, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Dept Optoelect Engn, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Guangdong Higher Educ Inst, Key Lab Optoelect Informat & Sensing Technol, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Key Lab Visible Light Commun Guangzhou, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Key Lab Visible Light Commun Guangzhou, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Guangdong Higher Educ Inst, Key Lab Optoelect Informat & Sensing Technol, Guangzhou 510632, Guangdong, Peoples R China|Jinan Univ, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510632, Guangdong, Peoples R China;

  • 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

    Intermodal interference; Micro-fiber; Micro-arched transition; Refractive index sensor; Bovine serum albumin;

    机译：多式联运干扰;微纤维;微弓形过渡;折射率传感器;牛血清白蛋白;

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