Laser collimation of a continuous beam of cold atoms using Zeeman-shift degenerate-Raman-sideband cooling

被引：11

作者：

Di Domenico, G

Castagna, N

Mileti, G

Thomann, P

Taichenachev, AV

Yudin, VI

机构：

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

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

[3] SB RAS, Inst Laser Phys, Novosibirsk 630090, Russia

来源：

PHYSICAL REVIEW A | 2004年 / 69卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1103/PhysRevA.69.063403

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this article we report on the use of degenerate-Raman-sideband cooling for the collimation of a continuous beam of cold cesium atoms in a fountain geometry. Thanks to this powerful cooling technique we have reduced the atomic beam transverse temperature from 60 muK to 1.6 muK in a few milliseconds. The longitudinal temperature of 80 muK is not modified. The flux density, measured after a parabolic flight of 0.57 s, has been increased by a factor of 4 to approximately 10(7) at. s(-1) cm(-2) and we have identified a Sisyphus-like precooling mechanism which should make it possible to increase this flux density by an order of magnitude.

引用

页码：063403 / 1

页数：9

共 31 条

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Berman P. R., 1997, ATOM INTERFEROMETRY

[2] Bright, slow, and continuous beam of laser-cooled cesium atoms [J].