...
首页> 外文期刊>Photonic Sensors >Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions
【24h】

Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions

机译:使用FDTD解决方案评估基于TiO2的SPR双层光纤RI传感器的性能

获取原文
           

摘要

We proposed a new bilayer surface plasmon resonance-based fiber-optic refractive index sensor with silver and an over-layer of TiO2. We numerically investigated the optimal thickness of TiO2 over-layer in the proposed sensor and compared its performance to that based on typical bimetallic layers of silver-and-gold in the aqueous media using finite-difference time domain approach. We show that the use of TiO2 over-layer greatly improves the sensor performance in terms of sensitivity and signal-to-noise ratio compared to that with gold as the over-layer. Not only does the TiO2 over-layer offer a cost-effective alternative to gold for overcoming the oxidation problem, but also it allows resonance wavelength-tunability.
机译:我们提出了一种新的基于双层表面等离子体共振的光纤折射率传感器,该传感器具有银和一层TiO2。我们通过有限差分时域方法,对所提出的传感器中TiO2的最佳厚度进行了数值研究,并将其性能与水性介质中典型的银金双金属层的性能进行了比较。我们表明,与金作为覆盖层相比,使用TiO2覆盖层在灵敏度和信噪比方面大大提高了传感器性能。 TiO2覆盖层不仅可以克服氧化问题,为金提供经济有效的替代品,而且还可以实现谐振波长可调性。

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