基于 Mathematica改进双棱镜干涉实验

摘要

针对双棱镜干涉实验中条纹间距不易测量，提出了改进方法，即用M athematica软件绘制出光强分布图，算出条纹间距。实验结果表明，该方法提高了测量光波波长的精确度，有利于学生对干涉和衍射现象的本质的理解。%Aiming at the difficulties of obtaining the fringe spacing in the biprism interference ex‐periment ,an improved measurement method was put forward .The figure of intensity distribution was drawn using Mathematica and the fringe spacing was calculated .The results showed that the wave‐length could be obtained with higher precision compared to traditional measurement methods .This method could help students to understand the nature of interference and diffraction .