Plasma oscillations and expansion of an ultracold neutral plasma

被引：208

作者：

Kulin, S ^{[1
]}

Killian, TC ^{[1
]}

Bergeson, SD ^{[1
]}

Rolston, SL ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.85.318

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the observation of plasma oscillations in an ultracold neutral plasma. With this collective mode we probe the electron density distribution and study the expansion of the plasma as a function of time. For classical plasma conditions, i.e.,weak Coulomb coupling, the expansion is dominated by the pressure of the electron gas and is described by a hydrodynamic model. Discrepancies between the model and observations at low temperature and high density may be due to strong coupling of the electrons.

引用

页码：318 / 321

页数：4

共 19 条

[1] THEORY OF PLASMA OSCILLATIONS .A. ORIGIN OF MEDIUM-LIKE BEHAVIOR [J].