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首页> 外文期刊>Optical fiber technology >Simultaneous measurement of hydrogen and methane based on PCF-SPR structure with compound film-coated side-holes
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Simultaneous measurement of hydrogen and methane based on PCF-SPR structure with compound film-coated side-holes

机译：基于PCF-SPR结构的复合膜涂层侧孔同时测量氢气和甲烷

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摘要

A special photonic crystal fiber based Surface Plasmon Resonance (PCF-SPR) sensor having ability of polarization filtering is designed for the simultaneous measurement of methane and hydrogen. In order to enhance the spectral response to the target gas, four ultra-large side-holes are symmetrically introduced into the cladding layer and two of them are coated with different compound thin-films. All geometrical parameters would be optimized for the selective detection of specific gas. Combined with the side-hole structure and polarization filtering, the gas mixture of methane and hydrogen can be accurately measured without interfering with each other. The approach also can be broadened to the qualitative identification of multiple gases.
机译：一种特殊的基于光子晶体光纤的表面等离子体共振（PCF-SPR）传感器具有极化滤波功能，旨在同时测量甲烷和氢气。为了增强对目标气体的光谱响应，将四个超大侧孔对称地引入到包层中，其中两个用不同的复合薄膜覆盖。所有几何参数将被优化以选择性检测特定气体。结合侧孔结构和极化过滤，可以准确测量甲烷和氢气的气体混合物，而不会互相干扰。该方法还可以扩展到多种气体的定性鉴定。

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