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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Sculptured-thin-film spectral holes for optical sensing of fluids
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Sculptured-thin-film spectral holes for optical sensing of fluids

机译：雕刻薄膜光谱孔，用于流体的光学传感

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摘要

A novel class of fluid sensors is proposed based on monitoring the optical properties of multi-section chiral sculptured thin films (STFs) that function as spectral reflection holes. Using a nominal model that treats a chiral STF as a two-phase composite material with locally biaxial dielectric properties, we predict that the presence of a fluid in the porous film results in a red-shift of the spectral holes. Several device operation modes are proposed, and their relative merits are compared. Proof-of-concept experiments with both circularly polarized and unpolarized incident light confirm the red-shift of the spectral holes, and demonstrate operation in a practical situation.
机译：基于监视多部分手性雕刻薄膜（STF）的光学特性，提出了一类新型的流体传感器，该薄膜用作光谱反射孔。使用将手性STF视为具有局部双轴介电特性的两相复合材料的标称模型，我们预测多孔膜中存在流体会导致光谱孔发生红移。提出了几种设备操作模式，并比较了它们的相对优点。圆偏振和非偏振入射光的概念验证实验证实了光谱孔的红移，并在实际情况下演示了操作。

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