SUBRECOIL RAMAN COOLING OF CESIUM ATOMS

被引：25

作者：

REICHEL, J

MORICE, O

TINO, GM

SALOMON, C

机构：

[1] Laboratoire Kastler Brossel, Ecole Normale Supérieure, Paris Cedex 05, F-75231

[2] Dipartimento di Scienze Fisiche dell’Università di Napoli «Federico II», Napoli, I-80125

来源：

EUROPHYSICS LETTERS | 1994年 / 28卷 / 07期

关键词：

D O I：

10.1209/0295-5075/28/7/004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use velocity-selective Raman pulses generated by two diode lasers to cool cesium atoms in 1 dimension to an r.m.s. of 1.2 mm/s. This is about 1/3 of the single-photon recoil velocity v(rec) = hk/M, where hk is the photon momentum and M the atom's mass. The corresponding effective temperature is a factor of 9 below the single-photon recoil temperature given by k(B)T(rec)/2 = 1/2Mv(rec)(2). Because of the high cesium mass, this temperature is only (23 +/- 5) nanokelvin, the lowest 1D kinetic temperature reported to date.

引用

页码：477 / 482

页数：6

共 19 条

[1] EXPERIMENTAL-METHOD FOR OBSERVATION OF RF TRANSITIONS AND LASER BEAT RESONANCES IN ORIENTED NA VAPOR [J].