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Adjustment method of an imaging Stokes polarimeter based on liquid crystal variable retarders

机译:基于液晶可变延迟器的成像斯托克斯旋光仪的调整方法

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摘要

The description of adjustment of an imaging Stokes polarimeter constructed and tested in our laboratory is presented. Our polarimeter's operation is based on six fast intensity distribution measurements realized in six different configurations of linear and circular analyzers. Using liquid crystal variable retarders (LCVRs) makes this construction compact and mechanically simple. However, new problems arise with proper azimuthal alignment as well as with proper LCVR voltage adjustment. Three basic steps of the adjustment procedure adapted to the specific construction of our polarimeter are described in detail. Some remarks concerning the critical parameters of the used CCD camera's parameters are also presented, as well as experimental verifications of the setup's accuracy acquired due to the proper adjustment process.
机译:介绍了在我们的实验室中构造和测试的成像斯托克斯旋光仪的调整说明。我们的旋光仪的运行基于六种快速强度分布测量,这些测量在六种不同配置的线性和圆形分析仪中实现。使用液晶可变延迟器(LCVR)使该结构紧凑且机械简单。但是,正确的方位对准以及正确的LCVR电压调整会出现新的问题。详细介绍了适用于我们的旋光仪特定结构的调整程序的三个基本步骤。还介绍了有关所用CCD相机参数的关键参数的一些说明,以及由于适当的调整过程而获得的设置精度的实验验证。

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