Figure 4
Propagation result for an asymmetrically positioned aperture on the intermediate beam. (a) 3D view of the intermediate beam with the offset aperture overlaid, showing that the aperture is very large compared with the core beam size. (b) 3D view of the image from the reverse propagation, showing the complex asymmetric ripples. (c, d) Slices through image centre at Y = 0, X = 0, respectively. |