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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
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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
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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.
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