A model of an annular flat-topped vortex beam based on multi-Gaussian superimposition is proposed.
基于多高斯函数叠加方法，提出了环形平顶涡旋光束模型。
Different from the traditional Gaussian beam, there is no generous definition for vortex beam after propagation.
和传统的高斯光束不同，涡旋光束传输后的光斑尺寸没有较为统一的定义。
Different from the traditional Gaussian beam, there is no generous definition for vortex beam after propagation.
和传统的高斯光束不同，涡旋光束传输后的光斑尺寸没有较为统一的定义。
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