Bright, slow, and continuous beam of laser-cooled cesium atoms

被引：35

作者：

Berthoud, P ^{[1
]}

Fretel, E ^{[1
]}

Thomann, P ^{[1
]}

机构：

[1] Univ Neuchatel, Observ Cantonal, CH-2000 Neuchatel, Switzerland

来源：

PHYSICAL REVIEW A | 1999年 / 60卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.60.R4241

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

By the moving molasses technique we have extracted laser-cooled cesium atoms in a continuous way directly from an optical molasses. The mean launching velocity is precisely tunable from 1 to 12 m/s. The atomic beam has a flux of 1.3 x 10(8) atom/s at 7 m/s and a longitudinal temperature of 70 mu K; which represents the highest flux and lowest velocity spread obtained so far in a continuous beam of cold atoms. These features makes it well suited for atomic fountains. The atomic flux can be slightly increased in a two-dimensional magneto-optical trap operation (+40%). A simple model accounts for the observed dependence of the flux with the magnetic-field gradient. [S1050-2947(99)51212-2].

引用

页码：R4241 / R4244

页数：4

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