最小偏向角法测三棱镜折射率的相图探究  

Explore the Phase Diagram of the Refractive Index of and the Incident and the Deviation Angle of Aprism

作　　者：吴忠万 李冬林[1] 谭兴毅[1] 左安友[1] 

机构地区：[1]湖北民族学院,湖北恩施445000

出　　处：《大学物理实验》2016年第6期78-80,共3页Physical Experiment of College

基　　金：湖北民族学院大学生创新创业训练计划项目(2016CX040)

摘　　要：三棱镜折射率的测量是大学物理实验的重要组成部分,对培养学生的基本实验技能、加深对经典光学理论的理解具有重要作用。本文依据几何光学原理探究了最小偏向角法中在有出射光时最小偏向角与三棱镜顶角、折射率所对应的函数关系,建立了有出射光时入射角、折射率、顶角间以及最小偏向角时折射率、顶角、最小偏向角间的相图,阐明了两相图的物理意义。该研究拓展了三棱镜折射率实验的研究思路。The measurement of the refractive index of the prism is an important part of college physics experiment. It plays an important role in developing students' basic experimental skills and understanding the theory of classical optics. Based on principle of geometrical optics,the function relation of the minimum deviation angle of the prism and the vertex angle and the refractive index was built. Then the phase diagram among the incident angle,the refractive index,and the vertex angle was established. We also established the phase diagram among the refractive index,the vertex angle and the minimum deviation angle in the method of the minimum deviation angle. Physical Significance of the two phase diagrams is stated. This study extends the research ideas of the prism refractive index experiment.

关 键 词：三棱镜折射率 最小偏向角 入射角 顶角 相图 

分 类 号：O4-34[理学—物理]