Double slits seen from the plane

[TMV]

Hi,
I wonder if we place a camera at any secondary lobe in a double slits fringe pattern, and if it looks at the slits: where does the light come from, how is it distributed ? And if we zoom inside one of the slits, what does it look like ?
Subsidiary problem : in the diffraction pattern generated by a black disk inside its geometric shadow, as seen from this pattern where does the light source would seem to come from when looking at the disk ?
Regards,
Francis

 

[Nugatory]

Hi,
I wonder...

These aren't quantum mechanics questions, they're answered by ordinary classical wave optics. The only uniquely quantum-mechanical effect in the double slit experiment is the way that the pattern builds up one dot at a time when we send single particles at the barrier.

if we place a camera at any secondary lobe in a double slits fringe pattern, and if it looks at the slits: where does the light come from, how is it distributed?

It comes from both slits. If you were standing on the screen and looking up at the barrier, you would see two slits with a light source behind them.

And if we zoom inside one of the slits, what does it look like?

It's still a slit with a light source behind it.

Subsidiary problem : in the diffraction pattern generated by a black disk inside its geometric shadow, as seen from this pattern where does the light source would seem to come from when looking at the disk ?

Around the edge of the disk.

 

[TMV]

Thanks for your reply, maybe we need the move this topic then ?

Around the edge of the disk.

Even from a non-central ring, the light would seem to come uniformely around the edge, or distributed in a certain way around it ?