Doughnut mode magneto-optical trap

Snadden, M.J., Bell, A.M. , Clarke, R.B.M., Riis, E. and McIntyre, D.H. (1997) Doughnut mode magneto-optical trap. Journal of the Optical Society of America B: Optical Physics, 14(3), pp. 544-552. (doi: 10.1364/JOSAB.14.000544)

Abstract

We have developed a magneto-optical trap that is well suited for high-resolution spectroscopy. It uses a combination of doughnut mode (Laguerre–Gaussian TEM₀₁) and TEM₀₀ cooling beams rather than the usual TEM₀₀ cooling beams. This configuration allows us to tailor the intensity distribution within the magneto-optical trap such that the atoms are cooled from the background vapor by the intense TEM₀₁ beams and then trapped by the weak TEM₀₀ beams. This greatly reduces the magnitude of the ac-Stark shift and the line broadening induced by the cooling lasers, allowing high-resolution spectroscopy to be performed in the presence of the cooling beams.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Bell, Dr Angus
• Authors: Snadden, M.J., Bell, A.M., Clarke, R.B.M., Riis, E., and McIntyre, D.H.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Journal of the Optical Society of America B: Optical Physics
• Publisher: Optical Society of America
• ISSN: 0740-3224
• ISSN (Online): 1520-8540