Dear André
Thank you very much for your response. First of all, could you please explain to me how can I make the picture you attached?
Now I try to focus the beam with thin lenses (increasing the field strength), but still keep the asymmetry of the beam at the focal point position.
Also, I could not understand the following results that I got in the case of a single lens with a 1 cm thickness and beam rms is 30 mm (attached plot). We can see that the asymmetry of the beam is still maintained at the focus point position, although I expected the beam to focus in one plane and defocus in another plane.
Please, could you take a look at your instinct and help me figure this out?
focus_Q5.flair (17.7 KB)
focus_Q5.inp (20.9 KB)
Q1Q3magfld.f (3.8 KB)
Best regards
Zohrab