AN OPTO-ELECTRIC TRAP FOR COLD ATOMS

被引：21

作者：

LEMONDE, P

MORICE, O

PEIK, E

REICHEL, J

PERRIN, H

HANSEL, W

SALOMON, C

机构：

[1] Laboratoire Kastter Brossel, Département de Physique de l’Ecole Normale Supérieure, Paris, 75231

来源：

EUROPHYSICS LETTERS | 1995年 / 32卷 / 07期

关键词：

D O I：

10.1209/0295-5075/32/7/003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a new type of conservative trap for cold atoms: a static electric field creates a position-dependent Stark potential to compensate gravity and a far-off-resonance laser beam provides transverse confinement. We demonstrate this Opto-Electric Trap (OET) on cesium atoms, using a ring electrode at 12 kV and a Ti-sapphire laser. Loaded from a magneto-optical trap, up to 2.5 . 10(5) atoms are captured in the OET. The 1/e lifetime is similar to 1 s, presently limited by collisions with the background gas. This trap is well suited for subrecoil laser cooling and evaporative cooling of confined atoms.

引用

收藏

页码：555 / 560

页数：6

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