石英晶体在紫外和可见光谱中的相位延迟和双折射
Phase Retardation and Birefringence of the Crystalline Quartz Plate in the Ultraviolet and Visible Spectrum
摘要：
本文介绍了一种利用光谱椭偏仪测量石英波片在紫外和可见光谱范围内的相位延迟和双折射的方法。在对石英晶体板进行标定后，由光电探测器采集实验数据并送入计算机。根据输出的数据，可以在190至770 nm的范围内获得延迟。利用这些延迟数据，可以在相同的光谱范围内计算出石英的双折射率，其精度优于。实验结果丰富了石英晶体的双折射数据，特别是在紫外波段。
英文摘要：
A method for measuring the phase retardation and birefringence of crystalline quartz wave plate in the ultraviolet and visible spectrum is demonstrated using spectroscopic ellipsometer. After the calibration of the crystalline quartz plate, the experimental data are collected by the photodetector and sent to the computer. According to the outputted data, the retardation can be obtained in the range of 190 to 770 nm. With the retardation data, the birefringence for the quartz can be calculated in the same spectrum with an accuracy of better than . The birefringence results enrich the crystalline quartz birefringence data especially in the ultraviolet spectrum.
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