单色平面光波的双缝衍射的计算机仿真

Computer Simulation of Two-Slit Diffraction of the Monochromatic Plane-Light Wave

以菲涅耳衍射积分为数学模型,用计算机模拟单色平面光波的双缝衍射,求解出不同缝宽时观察屏上的光强分布和衍射花样,通过与单缝衍射和双缝干涉的光强分布和花样对比,分析双缝衍射和双缝干涉以及单缝衍射的关系。

Two-slit diffraction of the monochromatic plane-light wave is simulated on computer and the intensity distribution of light and diffraction pattern are obtained on condition that the math model is founded on the base of Fresnel diffraction integral formula, when those results are contrasted with those of single-slit diffraction and two-slit interference, the relations among them are illustrated. Those help to understand the relations between interference and diffraction.