Cooling and trapping of ultracold strontium isotopic mixtures

Year: 2005

Authors: Poli N., Drullinger R.E., Ferrari G., Léonard J., Sorrentino F., Tino G.M.

Autors Affiliation: Dipartimento di Fisica—LENS, Università di Firenze, Istituto Nazionale di Fisica Nucleare—Sezione di Firenze,
Istituto Nazionale di Fisica della Materia—Unità di Firenze, Polo Scientifico, 50019 Sesto Fiorentino, Italy

Abstract: We present the simultaneous cooling and trapping of an isotopic mixture in a magneto-optical trap and describe the transfer of the mixture into a conservative, far-off-resonant dipole trap. The mixture is prepared with a technique that applies to intermediate and heavy alkaline-earth-metal-like atoms. In this work, Sr-88 and Sr-86 are simultaneously loaded first into the magneto-optical trap operated on the S-1(0)-P-3(1) spin-forbidden line at 689 nm, and then transferred into the dipole trap. We observe fast interspecies thermalization in the dipole trap which allows one to set a lower bound on the Sr-88-Sr-86 elastic cross section.

Journal/Review: PHYSICAL REVIEW A

Volume: 71 (6)      Pages from: 061403-1  to: 061403-4

KeyWords: laser cooling; strontium; isotopic mixtures; optical clock;
DOI: 10.1103/PhysRevA.71.061403

Citations: 43
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