声光效应实验中叠加光栅产生的双衍射现象探究

摘要

It produces the double refraction phenomenon in the light path of acousto-optic effect experiment by superposition’ s grating. It measures intensity values in the diffraction pattern by light intensity distribution me-ter,and it draws the diffraction 3D pattern using Origin7. 5 statistical software. It shows the distribution of the diffraction intensity and changes in both cases vividly and intuitively. It reflects the basic experiment which can demonstrate the new experimental phenomena by changing the original experimental conditions. It widens the basic experiment of the original function,and further brings experiment equipments into playing the function the largest.%声光效应实验光路中叠加光栅，产生双衍射现象，用光强分布测定仪测出产生的衍射图样中光强值，并用Origin7.5统计软件画出衍射3D图样，形象直观展示了两种情况下衍射光强的分布情况及变化情况。反应了基础实验在改变原实验条件下，能演示新实验现象，拓宽了基础实验原来的功能，更大程度地发挥了实验器材的最大作用。