Optical sensing of polarization using conical diffraction phenomenon
Optical sensing of polarization using conical diffraction phenomenon
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DOI：
10.1088/2040-8978/18/2/025609
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发表时间：
2016-02-01
影响因子：
2.1
通讯作者：
Abdolvand, Amin
中科院分区：
文献类型：
--
作者：
Grant, Stephen D.;Reynolds, Steve;Abdolvand, Amin
KGd（WO 4）（2）晶体已被用作原型的新型光学传感器的中心件，以识别光束的偏振平面。该设备识别入射光束的偏振平面，并被发现精确到+/- 4度内，与许多实验室中使用的常见的基于偏振器分析仪的设置相当。为了测试实际应用，进行了旋光测试，以确定由光学活性液体引起的旋转角，显示出预期值与使用锥形衍射现象测量的值之间的良好一致性。该原型为实际应用提供了一种简单易用的快速有效的线偏振分析工具。
A KGd(WO4)(2) crystal has been used as the central piece of a prototype novel optical sensor to identify the plane of polarization of a beam of light. The device identified the plane of polarization of the incident beam of light and was found to be accurate to within +/- 4 degrees, comparable to the common polarizer-analyzer based setup in use in many labs. In order to test a practical application, a polarimetry test was carried out to identify the angle of rotation caused by optically active liquids, showing excellent agreement between the expected values and those measured using the conical diffraction phenomenon. The prototype provides an easy to use tool for fast and effective analysis of linear polarization for practical applications.