Optical-dipole trapping of Sr atoms at a high phase-space density

被引：86

作者：

Ido, T

Isoya, Y

Katori, H

机构：

[1] Japan Sci & Technol Corp, ERATO, Cooperat Excitat Project, Takatsu Ku, Kawasaki, Kanagawa 2130012, Japan

[2] Univ Tokyo, Inst Engn Res, Bunkyo Ku, Tokyo 1138656, Japan

来源：

PHYSICAL REVIEW A | 2000年 / 61卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.61.061403

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Employing a far-off resonance optical-dipole trap (FORT), we attained a phase-space density exceeding 0.1, or an order to quantum degeneracy. Strontium atoms were magneto-optically cooled and trapped using the spin-forbidden S-1(0)-P-3(1) transition and then compressed into a FORT that was designed to allow simultaneous Doppler cooling. We discussed that the phase-space density was finally limited by the light-assisted collisions occurring in the optical cooling.

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页数：4

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