Single atoms in an optical dipole trap: Towards a deterministic source of cold atoms

被引：108

作者：

Frese, D ^{[1
]}

Ueberholz, B ^{[1
]}

Kuhr, S ^{[1
]}

Alt, W ^{[1
]}

Schrader, D ^{[1
]}

Gomer, V ^{[1
]}

Meschede, D ^{[1
]}

机构：

[1] Univ Bonn, Inst Angew Phys, D-53115 Bonn, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.85.3777

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe a simple experimental technique which allows us to store a small and deterministic number of neutral atoms in an optical dipole trap. The desired atom number is prepared in a magneto-optical trap overlapped with a single focused Nd:YAG laser beam. Dipole trap loading efficiency of 100% and storage times of about one minute have been achieved. We have also prepared atoms in a certain hyperfine state and demonstrated the feasibility of a state-selective detection via resonance fluorescence at the level of a few neutral atoms. A spin relaxation time of the polarized sample of 4.2 +/- 0.7 a has been measured. Possible applications are briefly discussed.

引用

页码：3777 / 3780

页数：4

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