The propagation characteristics of the diffraction field by a circular aperture of bessel - gauss beam 高斯光束圓孔衍射場的傳播特性
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,改進了原先的棱邊檢測方法,使得棱邊繞射場的計算精度大大提高。
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 本文詳細地研究了基于菲涅耳衍射的結構照明的原理和方法,利用角譜理論(平面波衍射理論)分析了正弦光柵的衍射光場的空間分布及其在三維傳感中應用的可能性。
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 特別地,我們討論了發(fā)散球面波照明的情況下,菲涅耳衍射光場和泰伯像所具有的一些有趣的性質(zhì),如球面波對光場的放大作用,泰伯效應存在的條件等等。