最大偏向角法测光栅常量  

Measuring grating constant by the maximum angle of deflection

作　　者：廖立新[1] 梁检初[1] 邬云文[1] 全秀娥[1] 

机构地区：[1]吉首大学物理科学与信息工程学院,湖南吉首416000

出　　处：《物理实验》2007年第3期32-34,共3页Physics Experimentation

基　　金：湖南省自然科学基金资助(No.03JJY6015)

摘　　要：结合光栅衍射实验中±1级衍射光随光栅片转动而分别向左右移动到某一位置消失的具体现象,在光栅实验中提出了“最大偏向角”的概念,并给出了通过测量最大偏向角来计算光栅常量的方法.It is well known that the ± 1 order diffraction speckles shift with the rotation of the grating and finally disappears at a specific rotation angle position in grating diffraction. According to this phenomena, the concept of ＂maximum angle of deflection＂ is put forward, and the method of measuring the grating constant by using the maximum angle of deflection is presented.

关 键 词：光栅常量 最大偏向角 最小偏向角 正入射 

分 类 号：O436.1[机械工程—光学工程]