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首页> 外文期刊>Optik: Zeitschrift fur Licht- und Elektronenoptik: = Journal for Light-and Electronoptic >SPR phase sensitivity enhancement in common-path polarization heterodyne interferometer by polarization tuning
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SPR phase sensitivity enhancement in common-path polarization heterodyne interferometer by polarization tuning

机译：通过极化调谐，SPR相位敏感性增强常见路径偏振外差管干涉仪

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摘要

In this work, we have theoretically investigated three designs of common-path polarization heterodyne interferometry (CPHI) with the possibility of to enhance the phase sensitivity and sensitivity-tunable ability. The schemes are established by utilizing some quarter wave plates (QWP) to control the ellipticity of polarization of light, and adjusting the azimuthal angle to achieve adequate phase sensitivity. The theoretical analysis has been done by Jones calculus and the results will be compared with conventional polarization heterodyne interferometry. The proposed designs have high phase sensitivity and sensitivity-tunable ability. Additionally it causes to shift the point of the extreme slope to the smaller incidence angle which usually is more convenient for SPR measurement. By the simulation, the phase sensitivity and resolving power of refractive index measurement has been estimated 5.5 x 10(5) degrees/RIU and 1.8 x 10(-8) RIU, respectively. (C)2017 Elsevier GmbH. All rights reserved.
机译：在这项工作中，我们理论上研究了三种常见路径偏振杂差干扰测量法（CPHI）的三种设计，其可能提高相位灵敏度和灵敏度可调能力。通过利用一些四分之一波板（QWP）来建立该方案来控制光极化的椭圆形，并调节方位角以达到足够的相位灵敏度。理论分析由Jones Chalulus进行，结果将与常规偏振杂差干扰测量法进行比较。所提出的设计具有高相敏感性和灵敏度可调能力。此外，它会导致将极端斜率的点移至较小的入射角，通常更方便地进行SPR测量。通过模拟，折射率测量的相位灵敏度和分辨率分别估计为5.5×10（5）度/ RIU和1.8×10（-8）RIU。 （c）2017年Elsevier GmbH。版权所有。

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