本文解析了闪耀光栅对厄米-高斯光束的方和费衍射分布,发现光栅对厄米-高斯先束衍射的分辨本领并不取决于光栅处的光斑尺寸,而是由光束本身的参量--光腰截面半径决定的。

The Fraunhofer diffraction distribution from a blazed grating illuminated with Hermit-Gaussian beams is investigated analytically. It is found that the resolution of the grating illuminated with a Hermit-Gaussian beam is not determined by the spot size on the grating but by the parameter of the beam itself, i. e. the radius of the beam waist section.