Realization of a Two-Dimensional Magneto-optical Trap with a High Optical Depth

被引:22
|
作者
Liu Yang [1 ]
Wu Jing-Hui [1 ]
Shi Bao-Sen [1 ]
Guo Guang-Can [1 ]
机构
[1] Univ Sci & Technol China, Chinese Acad Sci, Key Lab Quantum Informat, Hefei 230026, Peoples R China
基金
中国国家自然科学基金;
关键词
BOSE-EINSTEIN CONDENSATION; SODIUM ATOMS; VAPOR;
D O I
10.1088/0256-307X/29/2/024205
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We build up a novel setup of a two-dimensional (2D) Rb-85 magneto-optical trap (MOT) with a high optical depth (OD) of 38. Such a MOT trap of Rb-85 has several advantages as compared to the normal three-dimensional ellipsoidal MOT. Firstly, it will greatly enhance atom-photon interaction due to the large OD. Then, the dephasing caused by the magnetic gradient will be decreased in the long axis of the 2D MOT, which we want to avoid from in the experiments. The metastable ground level dephasing rate was gamma(21) = 0.008 gamma(31), which is much less than that in a normal MOT. The total number of atoms in this MOT was measured to be 9.1 x 10(8).
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页数:3
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