This paper calculates the Fraunhofer diffraction illuminance distribtion of cross double slit by Fourier transformation,offers a detailed discussion of it,and has obtained all its spatial frequency,its spatial period and the direction of its interference fringe.
用傅里叶变换的方法，计算夫琅和费正交双缝的衍射光强分布，作了详尽的讨论，求出了光强分布中所包含的全部空间频率、空间周期和干涉条纹的走向。
While for the multiple particles system, this is also called normal mode splitting.
在粒子数较高及probe光较强时,因非谐振性,正交模劈裂峰会演化为一个单峰,但同时由于较强光强所导致的烧孔效应,而出现饱和吸收透明峰,因此这一单峰便演化成饱和透明峰伴随两个半圆形泡状峰的特殊结构。