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研究了单色光石英退偏器的退偏机理；定义了退偏度作为衡量退偏器性能的物理量。从实验上在４４０～９２０ｎｍ的光谱范围测试了器件的退偏度，结果表明：只要器件的结构角适当，或者适当调节入射光束的截面大小，便可对某一单色线偏振光实现很好的退偏。
The depolarizability mechanism of the monochromagnetic quartz depolarizer was studied. The de-skewness was defined as a physical quantity to measure the depolarizer performance. The de-skewness of the device was experimentally measured in the spectral range of 440-920 nm. The results show that the monochromatic linearly polarized light can be well realized as long as the structural angle of the device is proper or the cross-sectional size of the incident beam is properly adjusted Biased.