光栅衍射演示实验中异常现象的分析  

Theoretical analysis of abnormal phenomenon in diffraction-grating demonstration experiment

作　　者：臧淑杰[1] 王雅红[1] 熊力[1] 

机构地区：[1]大连轻工业学院数理教学部,辽宁大连116034

出　　处：《大连轻工业学院学报》2001年第1期76-78,共3页Journal of Dalian Institute of Light Industry

摘　　要：根据光栅衍射次波的迭加原理 ,分析光栅衍射演示实验中缺级现象时隐时现的原因 ,并得出结论 :要想消出实验中的异常现象 ,就必须使光栅既直观又精密 ,即 :使光栅在直观的前提下 ,每条刻痕宽度相等 。According to the superposition principle of light sub wave passing through a diffraction grate, we have analyzed why order absent phenomenon displays now and than in the diffraction grating spectrum. It is concluded that in order to remove this kind of abnormal phenomenon, not only the width of the grooves must be uniform, but also the ratio between diffraction grate constant and slit width must be an integer.

关 键 词：光栅衍射实验 缺级现象 光栅常数 缝宽 比值 

分 类 号：O436.1[机械工程—光学工程]