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Determining thickness of films on a curved substrate by use ofellipsometric measurement

机译:通过使用的几种测量测量弯曲基板上的薄膜厚度

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The three intensity polarizer-sample-analyzer imaging ellipsometry is used to measure the ellipsometric parameters (`lf,A). In addition to the ellipsometric parameters, we introduce an extra angle a to measure the of the azimuth deviationof polarizer. After careful calibration, we found this deviation can indicate how much the surface normal slanted fromthe plane; then it can be used to deduce the thickness profile coated on a cylindrical lens. Using this technique, we notonly can determine the radius curvature of the curved surface, we also can calculate the thickness of the thin film coatedon a curved surface.
机译:三个强度偏振器样品分析仪成像椭圆形测量测量椭圆形参数(`LF,A)。除了椭圆形参数之外,我们还引入额外的角度A来测量偏振器的方位角偏差。经过仔细校准后,我们​​发现这种偏差可以指示从平面倾斜的表面垂直程度;然后它可用于推导涂覆在圆柱形透镜上的厚度曲线。使用这种技术,我们不能确定弯曲表面的半径曲率,我们还可以计算薄膜CoIdeon弯曲表面的厚度。

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