| 格兰-泰勒棱镜和格兰-付科棱镜透射比的比较研究 |
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| 引用本文： | 唐恒敬,吴福全,邓红艳. 格兰-泰勒棱镜和格兰-付科棱镜透射比的比较研究[J]. 激光技术, 2006, 30(2): 215-217 |
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| 作者姓名： | 唐恒敬 吴福全 邓红艳 |
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| 作者单位： | 曲阜师范大学,激光研究所,曲阜,273165;曲阜师范大学,激光研究所,曲阜,273165;曲阜师范大学,激光研究所,曲阜,273165 |
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| 摘 要： | 为了验证空气隙的厚度是否对偏光棱镜的透射比产生影响,对格兰-泰勒棱镜和格兰-付科棱镜的透射比进行了详细的理论分析,并利用UV-3101分光光度计分别对两只格兰-泰勒棱镜和两只格兰-付科棱镜的透射比进行了实验测试,发现格兰-泰勒棱镜的透射比(85%左右)明显高于格兰-付科棱镜(50%左右)。理论分析表明,对于严格的准直光束,两种棱镜的透射比均随波长的变化而振荡,且这种振荡对格兰-付科棱镜强于格兰-泰勒棱镜;但在分光光度计上的测试并未出现振荡,这说明对于非严格准直的光束,空气隙的厚度并不影响棱镜的透射比。
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| 关 键 词： | 物理光学 偏振光 格兰棱镜 透射比 干涉 |
| 文章编号： | 1001-3806(2006)02-0215-03 |
| 收稿时间： | 2005-02-21 |
| 修稿时间： | 2005-03-14 |
Transmittance comparison of Glan-Taylor prism and Glan-Foucault prism |
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| TANG Heng-jing,WU Fu-quan,DENG Hong-yan. Transmittance comparison of Glan-Taylor prism and Glan-Foucault prism[J]. Laser Technology, 2006, 30(2): 215-217 |
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| Authors: | TANG Heng-jing WU Fu-quan DENG Hong-yan |
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| Affiliation: | Institute of Laser, Qufu Normal University, Qufu 273165, China |
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| Abstract: | In order to verify whether the thickness of air-gap would influence the prism's transmittance,the transmittance of Glan-Taylor prism and Glan-Faucault prism is theoretically studied.The transmittance of two-Glan-Taylor prisms and two-Glan-Faucault prisms is tested with a UV-3101 spectral photometer,and the results are found the transmittance of Glan-Taylor prism(about 85%) is obviously higher than that of Glan-Faucault prism(about 50%).For strictly collimating light,the transmittance of these two types of prism varies with the wavelength change,and this vibration is stronger for Glan-Faucault prism than for Glan-Taylor prism.However,the experimental result tested by spectral photometer doesn't have vibration,which shows that for non-strictly collimating light,the thickness of air-gap doesn't influence the prism's transmittance. |
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| Keywords: | physical optics polarized light Glan prism transmittance interference |
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