The propagation characteristics of the diffraction field by a circular aperture of bessel - gauss beam 高斯光束圆孔衍射场的传播特性
Secondly , the precision of diffraction field of the edges of targets has been greatly advanced by improving the original method of detecting edges 其次,改进了原先的棱边检测方法,使得棱边绕射场的计算精度大大提高。
In this thesis , we present the law and method to generate structured illumination based on fresnel diffraction . by applying rsd theory , we analyzed the spatial distribution of fresnel diffraction field of sinusoidal grating and its available application in 3d sensing 本文详细地研究了基于菲涅耳衍射的结构照明的原理和方法,利用角谱理论(平面波衍射理论)分析了正弦光栅的衍射光场的空间分布及其在三维传感中应用的可能性。
Here , the spatial distribution of fresnel diffraction field and different talbot effects of sinusoidal grating are presented , under three different illuminating conditions . especially , we discussed some interesting properties about fresnel diffraction field and talbot image , when sinusoidal grating is illuminated by divergent spherical wave 特别地,我们讨论了发散球面波照明的情况下,菲涅耳衍射光场和泰伯像所具有的一些有趣的性质,如球面波对光场的放大作用,泰伯效应存在的条件等等。