Coulomb expansion of laser-excited ion plasmas

被引：26

作者：

Feldbaum, D ^{[1
]}

Morrow, NV ^{[1
]}

Dutta, SK ^{[1
]}

Raithel, G ^{[1
]}

机构：

[1] Univ Michigan, Dept Phys, FOCUS Ctr, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 17期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.89.173004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We determine the electric field in mm-sized clouds of cold Rb+ ions, produced by photoionization of laser-cooled Rb-87 atoms in a magneto-optical trap, using the Stark effect of embedded Rydberg atoms. The dependence of the electric field on the time delay between the ion plasma production and the probe of the electric field reflects the Coulomb expansion of the plasma. Our experiments and models show expansion times <1 mu s.

引用

页码：173004/1 / 173004/4

页数：4