法拉弟磁光效应实验中介质色散特性测量方法的改进

摘要

Refractive index of series of spectrum are fitted using the function relation of the incident angle,de-viation angular and refractive index to gain the dispersion relation of sample,based on the non-least deviation angular method.The method improve the degree of accuracy of dispersion relation of sample and achieve high precision measurement of electron charge mass ratio based on Faraday magnetic-optical effect.%提出利用入射角、偏向角及折射率的函数关系，以多个非近零变化率点测量及其最小二乘法的非线性拟合得到较小不确定度的系列谱线的折射率，进而获得较高精度的色散特性关系。克服以最小偏向角方法测定时临界位置主观随机影响大的局限性。从而实现基于法拉弟磁光效应的电子荷质比的高精度测量。