Continuous loading of cold atoms into a Ioffe-Pritchard magnetic trap

被引：27

作者：

Schmidt, PO ^{[1
]}

Hensler, S ^{[1
]}

Werner, J ^{[1
]}

Binhammer, T ^{[1
]}

Görlitz, A ^{[1
]}

Pfau, T ^{[1
]}

机构：

[1] Univ Stuttgart, Phys Inst 5, D-70550 Stuttgart, Germany

来源：

JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS | 2003年 / 5卷 / 02期

关键词：

optical cooling of atoms; laser cooling; magnetic trapping; cold atoms; continuous loading;

D O I：

10.1088/1464-4266/5/2/376

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a robust continuous optical loading scheme for a Ioffe-Pritchard (IP) type magnetic trap (MT). Chromium atoms are cooled and trapped in a modified magneto-optical trap (MOT) consisting of a conventional 2D-MOT in the radial direction and an axial molasses. The MOT and IP trap share the same magnetic field configuration. Continuous loading of atoms into the IP trap is provided by radiative leakage from the MOT to a metastable level which is magnetically trapped and decoupled from the MOT light. We are able to accumulate 30 times more atoms in the MT than in the MOT. The absolute number of 2 x 10(8) atoms is limited by inelastic collisions. A model based on rate equations shows good agreement with the data. Our scheme can also be applied to other atoms with similar level structure like alkaline earth metals.

引用

页码：S170 / S177

页数：8

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