| 光源宽度与干涉条纹可见度的关系 |
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| 引用本文： | 王世平. 光源宽度与干涉条纹可见度的关系[J]. 山东大学学报(理学版), 2005, 40(5): 85-87,112 |
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| 作者姓名： | 王世平 |
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| 作者单位： | 天津城市建设学院基础学科部,天津300381 |
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| 摘 要： | 在双缝干涉实验中，所用光源若是有一定宽度的，则屏上干涉条纹的可见度将受到一定的影响．当宽到一定程度时，屏上千涉条纹的可见度将下降到不可观测的程度．推导出了屏上不可观测的情况出现时所用光源的最大允许宽度．
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| 关 键 词： | 干涉条纹 光源宽度 可见度 光程差 |
| 文章编号： | 1671-9352（2005）05-0085-03 |
| 收稿时间： | 2005-02-23 |
| 修稿时间： | 2005-02-23 |
Relationship between width of light source and visibility of interference streak |
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| WANG Shi-ping,. Relationship between width of light source and visibility of interference streak[J]. Journal of Shandong University, 2005, 40(5): 85-87,112 |
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| Authors: | WANG Shi-ping |
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| Affiliation: | Department of Basic Courses, Tianjin Institute of Urban Construction, Tianjin 300381, China |
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| Abstract: | The visibility of the interference streak on a distant screen will be affected when the light source there has a certain width in a double-slit interference experiment. The visibility of the interference streak on the screen will decline to invisible level. The paper derives the quantitative relation to maximum admitted width of the light source used when unobservable circumstance on the screen appears. |
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| Keywords: | interference streak width of light source visibility optical distance difference |
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