...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Sensors and Actuators, A. Physical >Sensitivity enhancement of a surface plasmon resonance based fibre optic refractive index sensor utilizing an additional layer of oxides
【24h】

Sensitivity enhancement of a surface plasmon resonance based fibre optic refractive index sensor utilizing an additional layer of oxides

机译：利用附加的氧化物层提高基于表面等离子共振的光纤折射率传感器的灵敏度

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We have experimentally demonstrated the capability of metal and different oxide combinations to be used in surface plasmon resonance (SPR) based fibre-optic refractive index sensor by using wavelength interrogation technique. The analysis of the sensor response is carried out using multilayered structure and geometrical optics. The configuration contains copper as a SPR active metallic layer covered by one of the three oxide layers TiO_2, SiO_2, and SnO_2. The thickness of the copper layer is optimized to achieve the most pronounced dip at the resonance condition. The maximum sensitivity is obtained for TiO_2 film. Further, increase in the thickness of the TiO_2 layer increases the sensitivity of the sensor. The trend of sensitivity obtained by experimental results match qualitatively with the theoretical results obtained using the N-layer model and the ray approach. The additional advantages of oxide layer, apart from sensitivity enhancement, are protection of metallic layer from oxidation, tunability of the resonance wavelength region, biocompatibility and capability of gas sensing.
机译：我们已经通过使用波长探询技术，实验证明了金属和不同氧化物组合用于基于表面等离子体激元共振（SPR）的光纤折射率传感器的能力。使用多层结构和几何光学对传感器响应进行分析。该构造包含被三个氧化物层TiO_2，SiO_2和SnO_2之一覆盖的铜作为SPR活性金属层。铜层的厚度被优化以在共振条件下实现最明显的下降。对于TiO_2薄膜可获得最大的灵敏度。此外，增加TiO 2层的厚度增加了传感器的灵敏度。实验结果获得的灵敏度趋势与使用N层模型和射线方法获得的理论结果在质量上匹配。氧化物层的其他优点，除了提高灵敏度外，还可以保护金属层免于氧化，谐振波长区域的可调性，生物相容性和气体感应能力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号