| 恒星干涉测量中光的偏振效应 |
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| 作者单位： | 中国科学院院西天文台 |
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| 摘 要： | 恒星光学干涉仪中两光路的偏振特性是影响其干涉条纹对比度的主要因素之一．偏振效应包括由于反射产生的位相延迟和光的振动方向的旋转，并可能严重降低干涉条纹对比度．本文分析了偏抓效应的产生原因和对干涉仪的影响，给出了三种典型的干涉仪光路布置，这些布置具有最小的条纹对比度损失．
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| 关 键 词： | 恒星干涉仪，偏振效应 |
Polarization Effects in Steller Interferometer |
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| Authors: | Li Zaixiong Wang Zhengming |
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| Abstract: | One of main factors affecting the performance of long baseline steller interferometer relates to the polarization characteristics of the two light beams. Retardation and reorientation of the polarization coordinate trame of reference caused by reflection are a major cause of fringe contrast decrease. In this paper, we have analyzed these effects and as the result of our analyst3 we have recommended three sorts of typical optical layouts in which the fringe contrast decreases are minimal |
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| Keywords: | Steller Tnterferometer Polarization |
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