The window function of circular hard-edge apertures is simulated and optimized by the Laguerre-Gauss truncated series, and applied to study the diffraction of Gaussian beams and 0-order Bessel-Gaussian beams by the hard-edge aperture.

• 摘要用拉盖尔－高斯截断级数模拟了任意半径的圆孔硬边光阑窗口函数，并应用于研究高斯光束和零阶贝塞尔－高斯光束通过硬边光阑的衍射。