可以对声光纳曼拉斯衍射进行分析并得到在不同Q值时候的场分布-to sound and light) Russ diffraction analysis and get in different Q value when the field distribution

实现基本的平面光波场在空间的衍射，，及经过光学元件后光场的变化-Achieve diffraction and spatial variation of the light field ,, basic field after a planar lightwave optical element