By using the theory of partially coherent light, the analytical expression for the mode coherence coefficients of flattened Gaussian beams has been derived in the cylindrical coordinate system.
利用部分相干光理论，推导出柱坐标系下平顶高斯光束模相关系数的解析表达式。
Gaussian beams can be judged and measured using a new method described here which measures only the intensities on four coordinate points in the same cross section of the measured beam.
提出一种判别和测量高斯光束的新方法。在截面内对任意等距四点采光测量，就可判别和测量此高斯光束。
Gaussian beams can be judged and measured using a new method described here which measures only the intensities on four coordinate points in the same cross section of the measured beam.
提出一种判别和测量高斯光束的新方法。在截面内对任意等距四点采光测量，就可判别和测量此高斯光束。
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