白光和激光扩展光源协同调节白光等厚干涉条纹  

Synergistic Adjustment of White Light Equal-thickness Interference Fringes with White Light and Laser Extended Light Sources

作　　者：王希成[1] 高辉 杨文革 冯娟娟[3] 刘文晶[1] Wang Xicheng;Gao Hui;Yang Wenge;Feng Juanjuan;Liu Wenjing(School of Materials and Energy,Lanzhou University,Lanzhou,730000,China;School of Science,Jiangnan University,Wuxi,214122,China;National Demonstration Center for Experimental Physics Education,Lanzhou University,Lanzhou,730000,China)

机构地区：[1]兰州大学材料与能源学院,甘肃兰州730000 [2]江南大学理学院,江苏无锡214122 [3]兰州大学物理学国家级实验教学示范中心,甘肃兰州730000

出　　处：《中国现代教育装备》2024年第15期23-24,28,共3页China Modern Educational Equipment

基　　金：甘肃省教育厅2020年“创新创业教育慕课”“漫话创业”;兰州大学物理学院教育教学改革研究项目“材料化学专业实验课程体系建设”(编号:20201111)。

摘　　要：白光等厚干涉条纹是迈克尔逊干涉仪等光程的标志,由于其可观察范围小导致调节困难。通过分析常规调节方法中存在动镜调节方向、速度和是否消除回程差不易确定以及实验者易失去耐心等问题,提出使用白光和激光扩展光源协同调节的方法。根据激光干涉条纹的形状和移动方向确定动镜调节的方向和速度以及回程差是否消除,使实验者集中注意力,获得良好效果。通过实时对比激光和白光等厚干涉条纹,加深学生对白光等厚干涉条纹特点的理解。The white light equal-thickness interference fringe is the mark of the equal light range of the Michelson interferometer.The small observable range makes adjustment difficult.By analyzing the problems of the conventional adjustment method,such as the direction and speed of the dynamic mirror adjustment and whether the return difference is eliminated are not easily determined,and experimenters tend to lose patience,the method of synergistic adjustment by white light and laser extended light source is proposed.The direction and speed of the dynamic mirror adjustment and whether the return difference is eliminated are determined by the shape and moving direction of the laser interference fringe,and the experimenter can focus on it.It has received good results in practice.By comparing laser and white light equalthickness interference fringes in real time,it helps to deepen theunderstandingof the characteristics of white light equal-thickness interference fringes.

关 键 词：迈克尔逊干涉仪 白光等厚干涉条纹 协同调节 

分 类 号：G642[文化科学—高等教育学]