涡旋光束在光束的传播方向上有一个位相项e，而且它拥有一个光束轨道角动量，该matlab程序实现了从一个高斯基模变换到涡旋光束的基本功能。(The vortex beam has a phase term E in the direction of beam propagation, and it has a beam orbit angular momentum. The matlab program realizes the basic function of transforming fro

利用理论推导的方法，该matlab程序得出涡旋光束经相位全息光栅接收后一阶衍射光束的解析表达式。(By using the method of theoretical derivation, the analytical expression of the first-order diffraction beam of vortex beam received by phase holographic grating is obtained by MATLAB program.)