Longitudinal focusing and cooling of a molecular beam

被引：70

作者：

Crompvoets, FMH

Jongma, RT

Bethlem, HL

van Roij, AJA

Meijer, G

机构：

[1] FOM, Inst Plasmaphys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands

[2] Univ Nijmegen, Dept Mol & Laser Phys, NL-6525 ED Nijmegen, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.89.093004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A neutral polar molecule experiences a force in an inhomogeneous electric field. This electric field can be designed such that a beam of polar molecules is exposed to a harmonic potential in the forward direction. In this potential the longitudinal phase-space distribution of the ensemble of molecules is rotated uniformly. This property is used to longitudinally focus a pulsed beam of ammonia molecules and to produce a beam with a longitudinal velocity spread of 0.76 m/s, corresponding to a temperature of 250 muK.

引用

收藏

页码：930041 / 930044

页数：4

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