杨氏双缝干涉实验的虚拟仿真实现

Realization in Simulating of Young's Double Slit Interference Experiments

为研究杨氏双缝干涉实验,并对各种条件下的杨氏双缝干涉实验的现象进行直观观测与分析,根据杨氏双缝干涉理论借助Matlab语言编程进行了计算机虚拟仿真。结果表明:该仿真能够直接绘制单色光和非单色光条件2种情况下杨氏双缝干涉的图样和光强分布曲线,并能同步计算出相应的条纹间距及对比度;所得图样细致逼真,并可直观地分析出各参量的改变对于干涉结果的影响。所得仿真结果和理论推导完全一致,因此,该仿真为理论分析和实验教学提供了新的有效的辅助手段。

In order to study the phenomenon of Young＇s double slit interference experiment,in the paper,we have simulated the experiment by using Matlab program.The results can display the interference pattern and distributing curve of intension under all conditions,and the corresponding interval of interference fringe and contrast can also be figured out simultaneously.When the incidence light is monochromatic or non-monochromatic,the simulation results and the theoretical calculation are completely consistent.The drawings are delicate and distinct,which can help us to observe and analyze this experiment.The simulation makes the whole physical process objective,and which offers a new effective supplementary means for optical theory analysis and experiment teaching.