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首页> 外文会议>RIAO/OPTILAS 2004 >A simple and low cost technique to fabricate and experience interference birefringent filters
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A simple and low cost technique to fabricate and experience interference birefringent filters

机译：一种简单且低成本的技术来制造和体验干涉双折射滤光片

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摘要

In this work we propose and demonstrate a very simple method to produce interference birefringent filters. We use the birefringence properties of usual commercial scotch, which acts as a uniaxial material. By superimposing several scotch layers with parallel orientation, and placing them between two crossed polarizers oriented at 45 degrees, we can measure the birefringence of the material. We use a portable fiber spectrophotometer to characterize the layers birefringence in the visible range. We developed a software to calculate the transmission properties of different types of birefringent filters, including folded and fan Solc filters. In the simulations we include the information of the material birefringence that we obtain experimentally, thus leading to a precise description of the transmission properties in the entire visible range. A very simple system permits to align the scotch layers with the proper angles and create a birefringent filter. We have designed several filters with different spectral properties. The measurement of the transmission obtained with the portable spectrophotometer confirms experimentally the prediction given by the simulation software.
机译：在这项工作中，我们提出并演示了一种非常简单的方法来产生干涉双折射滤光片。我们使用普通商业苏格兰威士忌的双折射特性，该特性充当单轴材料。通过以平行方向叠加几个透明层，并将它们放置在两个以45度定向的交叉偏振器之间，我们可以测量材料的双折射。我们使用便携式光纤分光光度计来表征可见光范围内的双折射层。我们开发了一种软件来计算不同类型的双折射滤光片（包括折叠和扇形Solc滤光片）的透射特性。在模拟中，我们包括通过实验获得的材料双折射信息，从而可以精确描述整个可见光范围内的透射特性。一个非常简单的系统允许将透明层与适当的角度对齐，并创建双折射滤镜。我们设计了几种具有不同光谱特性的滤波器。用便携式分光光度计获得的透射率测量值通过实验证实了仿真软件给出的预测。

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