用Gauss求积法计算菲涅耳圆孔衍射光强

Apply Gauss's Integrating Method to Compute the Intensity of Fresnel's Diffraction by Circular Aperture

以圆孔衍射为例,用Gauss求积法计算平面屏幕衍射的菲涅耳积分,得出被一个单色点光源照明的小圃孔的菲涅耳衍射区中任意点的光强。

Take the diffraction by circular aperture for example. The Fresnel's integration of plane screen's diffraction was computed with Gauss's integrating method, and the light intensity of arbitrary point in Fresnel's diffractive field was got, when the small circular aperture,was lighted by homogeneous spot source.