With the intensity distribution function of Gaussian beam, the lateral and axial resolution expressions were deduced.
结合高斯光束的强度分布函数，推导了横向与轴向分辨率的表达式。
The energy distribution of far field spot for annular aperture Gaussian beam is discussed and the fitting expression is given.
讨论环形孔径高斯光束的远场光斑能量分布，并给出拟合表达式。
Some important concepts relating to the flattened Gaussian beams (FGBs), such as the field distribution and beam width, are analyzed physically.
对平顶高斯光束有关的一些重要概念，例如场分布和束宽等作了物理分析。
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