非单色点光源杨氏双缝实验衬比度为零的原因  

Analysis of zero contrast in Young's double slit experiment with nonmonochromatic point source

作　　者：许轲[1] 

机构地区：[1]北京大学生命科学学院,北京100871

出　　处：《大学物理》2012年第10期52-54,共3页College Physics

摘　　要：分析了非单色点光源杨氏双缝实验中屏上出现衬比度为零的区域的原因.从以光程差定义的衬比度为零和波列长度小于光程差使波列不相重叠两个角度进行了解释.Certain areas of the pattern show zero contrast in the Young＇s double slit experiment with a nonmonochromatic point source. Two theoretical explanations are proposed here, with one applying the contrast defined by optical path difference and another indicating it is due to wave trains cannot overlap when the length of them is less than the optical path difference.

关 键 词：干涉 杨氏双缝实验 非单色光 衬比度 波列 

分 类 号：O436.1[机械工程—光学工程]