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Refraction indexes of the Polyester film 3M PP2500

机译:聚酯薄膜3M PP2500的折射率

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摘要

In this work we describe an experimental technique to measure the refraction index of the 3M PP2500 film which has good behavior as quarter wave retarder plate for λ = 633 nm. This technique is achieved when two perpendicular linearly polarized beam from a Wollaston prism are incident on the thickness of the film. The beams were incident parallel to the fast axis to measure the ordinary refraction index and parallel to the slow axis to measure the extraordinary refraction index. Some experimental results are shown.
机译:在这项工作中,我们描述了一种测量3M PP2500薄膜折射率的实验技术,该薄膜在λ= 633 nm时具有作为四分之一波长延迟片的良好性能。当来自沃拉斯顿棱镜的两个垂直线偏振光束入射到薄膜厚度上时,可以实现该技术。光束平行于快轴入射以测量寻常折射率,而平行于慢轴入射以测量异常折射率。显示了一些实验结果。

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