At the position of the zeroth order, all wavelengths from each slit add constructively; this produces the bright white light you see as the zeroth order at the center of the back focal plane of the objective (Figures 3 and 4).
At the position of the zeroth order, all wavelengths from each slit add constructively; this produces the bright white light you see as the zeroth order at the center of the back focal plane of the objective (Figures 3 and 4).
在零级位，从栅格标本的各个窄缝中发出的所有波长会产生相加的干涉，在物镜的后焦面中心会看到明亮的白色像。