双棱镜干涉测量激光波长的方法改进  

An Improvement on Measuring Laser Wavelength by Double-Prism Interference Method

作　　者：全秀娥[1] 廖立新[1] 刘生长[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：《吉首大学学报（自然科学版）》2006年第4期68-70,83,共4页Journal of Jishou University(Natural Sciences Edition)

基　　金：湖南省教育厅科学研究项目(03C336)

摘　　要：在双棱镜干涉法测量激光波长的实验中,干涉条纹间距、两虚光源经透镜所成的双缝实验间距以及两虚光源到观察屏的距离测量误差是影响实验结果的主要因素.针对以上原因,用一次成像法测两虚光源间距,适当增大狭缝光源与双棱镜之间的距离,并极大地增大狭缝光源到观察屏的距离,使实验结果更趋理论值.In the double prism interference experiment in measuring laser wavelength, the major factors which result in measuring error are the measuring value of the distance between interference fringes using the second focus method, narrow distance between double slit, and the distance between two virtual light sources. An improvement of measuring method is introduced in our experiment：The distance between two virtual light sources is measured by the first focus method, and the distance between the slit lamp and the double-prism and the distance between the slit lamp and the viewing screen are greatly increased in our experiment. Our experimental results are proved to be in agreement with the theoretical results well.

关 键 词：双棱镜 二次成像 一次成像 

分 类 号：O436.1[机械工程—光学工程]