对衍射理论的一点理解

Understanding of Diffraction Theory

本文指出ｉ相移是Ｆｒｅｓｎｅｌ衍射原理自洽的要求。通过对基尔霍夫衍射积分公式的分析，证明ｉ是次级子球面波各向不均匀发射的结果，并且是波动方程要求的。

At first, it has been pointed out that the i phase shift is a requirement of the self -satisfaction of Fresnel diffraction theory. Then based on the analysis for the kirchhoff diffraction theory, it has been showed that the i is the result of the unhomogeneously emission of the secondary disturbance spherical wavelets, and stems from the wave equation.