几种干涉，衍射仿真程序，包括夫琅禾费衍射，菲涅尔衍射，单缝衍射，等厚干涉，光栅衍射等-Several interference, diffraction simulation program, including Fraunhofer diffraction, Finel diffraction, single slit diffraction, equal thickness interference, grating diffraction, etc.