首页> 外国专利> METHOD AND APPARATUS FOR DETERMINING THE POLARIZATION PROPERTIES OF LIGHT EMITTED, REFLECTED OR TRANSMITTED BY A MATERIAL USING A LASER SCANNING MICROSCOPE

METHOD AND APPARATUS FOR DETERMINING THE POLARIZATION PROPERTIES OF LIGHT EMITTED, REFLECTED OR TRANSMITTED BY A MATERIAL USING A LASER SCANNING MICROSCOPE

机译:用激光扫描显微镜测定材料发射,反射或透射的光的偏振特性的方法和装置

摘要

The invention relates to a method and apparatus for determining the polarization properties of light emitted, reflected or transmitted by a material (5) using a laser scanning microscope with the tested material (5) being illuminated point by point with a laser beam (3) of known polarization state. According to the invention the light beam with a polarization state modified by the material or the light emitted by the material is being examined by measuring the intensity of two different polarization components of a selected light beam received from each point of said material essentially at the same time and assigning a signal obtained by processing the two intensity signals to a respective point of an image of said material. The apparatus has a polarization state generator (2) between the laser light source (1) and the material (5) being tested, and a detector (16, 17) in a light beam for determining the intensity of light with a polarization state modified by the material or the intensity oflight emitted by the material, the improvement of which is that a means (8) for dividing the polarization components in space or time is used in front of the detector.
机译:本发明涉及一种使用激光扫描显微镜确定由材料(5)发射,反射或透射的光的偏振特性的方法和设备,其中被测试材料(5)被激光束(3)逐点照射。已知的极化状态。根据本发明,通过测量从所述材料的每个点基本上在相同位置接收的选定光束的两个不同偏振分量的强度,来检查具有由材料改变的偏振态的光束或由材料发出的光。时间,并将通过处理两个强度信号而获得的信号分配给所述材料的图像的相应点。该设备具有在激光光源(1)和被测试材料(5)之间的偏振态发生器(2),以及光束中的检测器(16、17),用于确定经过修正的偏振态的光强度通过材料或材料发出的光的强度,其改进之处在于在检测器的前面使用了一种用于在空间或时间上划分偏振分量的装置(8)。

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