Light-shift tomography in an optical-dipole trap for neutral atoms

被引：18

作者：

Brantut, J. P. ^{[1
]}

Clement, J. F. ^{[1
]}

de Saint Vincent, M. Robert ^{[1
]}

Varoquaux, G. ^{[1
]}

Nyman, R. A. ^{[1
]}

Aspect, A. ^{[1
]}

Bourdel, T. ^{[1
]}

Bouyer, P. ^{[1
]}

机构：

[1] Univ Paris Sud, CNRS, Lab Charles Fabry Inst Opt, F-91127 Palaiseau, France

来源：

PHYSICAL REVIEW A | 2008年 / 78卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.78.031401

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on light-shift tomography of a cloud of Rb-87 atoms in a far-detuned optical-dipole trap at 1565 nm. Our method is based on standard absorption imaging, but takes advantage of the strong light shift of the excited state of the imaging transition, which is due to a quasiresonance of the trapping laser with a higher excited level. We use this method to (i) map the equipotentials of a crossed optical-dipole trap and (ii) study the thermalization of an atomic cloud by following the evolution of the potential energy of atoms during the free-evaporation process.

引用

页数：4

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