- #1
ChrisVer
Gold Member
- 3,378
- 464
Hi,
I was just wondering, is there any way to estimate the vollume of a MOT (formed by 3 incoming and 3 counterpropating beams at a point where the magnetic field B=0) just by seeing its 2D projection (maybe through a camera) ?
I could only measure its 2 dimensions in the picture:
h=0.9 mm
d=0.6 mm
However is there anyway to determine the 3D dimensional overlapping of the 3 propagating laser beams?
Naturally if everything is perfect I think I can have a sphere... now obviously the image is not a sphere but an ellipse... I thought I could try to say that the extra dimension x=0.6 (oblate spheroid) to 0.9 (prolate spheroid) mm, but I think this doesn't make sense... It can as well be anything from 0.1 mm (even smaller) to 2*Radius[laser] ... right?
I was just wondering, is there any way to estimate the vollume of a MOT (formed by 3 incoming and 3 counterpropating beams at a point where the magnetic field B=0) just by seeing its 2D projection (maybe through a camera) ?
I could only measure its 2 dimensions in the picture:
h=0.9 mm
d=0.6 mm
However is there anyway to determine the 3D dimensional overlapping of the 3 propagating laser beams?
Naturally if everything is perfect I think I can have a sphere... now obviously the image is not a sphere but an ellipse... I thought I could try to say that the extra dimension x=0.6 (oblate spheroid) to 0.9 (prolate spheroid) mm, but I think this doesn't make sense... It can as well be anything from 0.1 mm (even smaller) to 2*Radius[laser] ... right?