摘要
We build a Zeeman slower with consecutive coils and use it to load an Yb magneto-optical trap （MOTs）. Cooling efficiency is measured by the fluorescence intensity of the atomic cloud trapped by the MOT. An optimized magnetic field profile can acquire the maximum cooling efficiency, corresponding to a good compromise between the smaller magnetic field mismatch and the high capture velocity. Our studies provide useful information on how the performance of the Zeeman slower can be improved.
We build a Zeeman slower with consecutive coils and use it to load an Yb magneto-optical trap （MOTs）. Cooling efficiency is measured by the fluorescence intensity of the atomic cloud trapped by the MOT. An optimized magnetic field profile can acquire the maximum cooling efficiency, corresponding to a good compromise between the smaller magnetic field mismatch and the high capture velocity. Our studies provide useful information on how the performance of the Zeeman slower can be improved.
基金
supported by the National Natural Science Foundation of China (Nos.10634060 and10904161)
the National Key Basic Research and Development Program of China (Nos.2005CB724501 and 2006CB921406)
