Gas-Clad Two-Way Fiber Optic SPR Sensor: a Novel Approach for Refractive Index Sensing
Gas-Clad Two-Way Fiber Optic SPR Sensor: a Novel Approach for Refractive Index Sensing
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DOI：
10.1007/s11468-015-9897-2
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发表时间：
2015-10-01
期刊：
影响因子：
3
通讯作者：
Gupta, Banshi D.
中科院分区：
文献类型：
--
作者：
Mishra, Akhilesh K.;Mishra, Satyendra K.;Gupta, Banshi D.
提出并研究了一种新型的基于气包层表面等离子体共振（SPR）的光纤传感器。所提出的光纤探头不仅感测探头外层周围环境的折射率变化，而且还显示出检测包层孔中不同气体的潜力。对一次包层空气孔充氮气的气包层光纤传感探头进行了研究。二氧化硅用作气体包层光纤的第二包层，在该第二包层上具有ITO膜作为等离子体金属层。为了优化探针设计，针对不同层的不同厚度计算品质因数（FOM）和检测精度（DA）。
We propose and study the characteristics of a novel gas-clad surface plasmon resonance (SPR)-based fiber optic sensor. The proposed fiber optic probe not only senses change in the refractive index of the environment surrounding the outer layer of the probe but also shows the potential of detecting different gases in cladding holes. We have carried out the study of sensing probe of gas-clad fiber with nitrogen gas filled in air holes of the primary cladding. Silica is used as a second cladding of the gas-clad fiber with ITO film over this secondary cladding as a plasmonic metal layer. To optimize the probe design, figure of merit (FOM) and detection accuracy (DA) are calculated for varying thicknesses of different layers.