Magneto-optical trap for thulium atoms

被引：83

作者：

Sukachev, D. ^{[1
,2
]}

Sokolov, A. ^{[1
,2
]}

Chebakov, K. ^{[1
]}

Akimov, A. ^{[1
,2
]}

Kanorsky, S. ^{[1
]}

Kolachevsky, N. ^{[1
]}

Sorokin, V. ^{[1
,2
]}

机构：

[1] PN Lebedev Phys Inst, Moscow 119991, Russia

[2] Moscow Inst Phys & Technol, Dolgoprudnyi 141704, Moscow Region, Russia

来源：

PHYSICAL REVIEW A | 2010年 / 82卷 / 01期

关键词：

BOSE-EINSTEIN CONDENSATION; LASER; COLD;

D O I：

10.1103/PhysRevA.82.011405

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Thulium atoms are trapped in a magneto-optical trap using a strong transition at 410 nm with a small branching ratio. We trap up to 7 x 10(4) atoms at a temperature of 0.8(2) mK after deceleration in a 40-cm-long Zeeman slower. Optical leaks from the cooling cycle influence the lifetime of atoms in the magneto-optical trap which varies between 0.3 and 1.5 s in our experiments. The lower limit for the leaking rate from the upper cooling level is measured to be 22(6) s(-1). The repumping laser transferring the atomic population out of the F = 3 hyperfine ground-state sublevel gives a 30% increase for the lifetime and the number of atoms in the trap.

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页数：4

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