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首页> 外文期刊>Langmuir: The ACS Journal of Surfaces and Colloids >New experimental setup to use ellipsometry to study liquid-liquid and liquid-solid interfaces
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New experimental setup to use ellipsometry to study liquid-liquid and liquid-solid interfaces

机译：使用椭圆偏光法研究液-液和液-固界面的新实验装置

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摘要

Different types of optical light guides were constructed and tested to enable convenient multiple angle of incidence ellipsometry, on solid and liquid interfaces in liquid solutions. Two light guides are needed on an ellipsometer, one to guide the incoming light and one to guide the light that is reflected at the test surface, and therefore one light guide was mounted on the laser arm and one on the detector arm of the ellipsometer. With this arrangement the optical windows automatically adjust to always be perpendicular to the direction of the light independent of the angle of incidence. The purpose with these light guides is to facilitate the passage of light through the air/solution interface. A thorough theoretical and experimental analysis of optical errors introduced by such light guides is presented. This discussion includes the effect of multiple reflections between and within the windows of the light guides' On the basis of this analysis a new ellipsometry setup with light guides, consisting of glass tube's with glued end windows, was developed. This setup makes it possible to perform accurate measurements in almost any type of measuring cell at any angle of incidence. [References: 21]
机译：构造并测试了不同类型的光导，以实现在液体溶液中的固体和液体界面上方便的多重入射椭圆偏光法。椭圆偏振仪上需要两个光导，一个用于引导入射光，另一个用于引导在测试表面上反射的光，因此，一个光导安装在激光计的激光臂上，另一个安装在椭偏仪的检测器臂上。通过这种布置，光学窗口自动调整为始终垂直于光的方向，而与入射角无关。这些光导的目的是促进光通过空气/溶液界面。提出了对这种光导引入的光学误差的全面的理论和实验分析。讨论内容包括光导窗之间和内部多次反射的影响。在此分析的基础上，开发了一种新的椭偏仪，它具有光导，由带有胶合端窗的玻璃管组成。这种设置可以在几乎任何类型的测量单元中以任何入射角执行准确的测量。 [参考：21]

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