Intense slow beams of bosonic potassium isotopes

Year: 2006

Authors: Catani J., Maioli P., De Sarlo L., Minardi F., Inguscio M.

Autors Affiliation: LENS-European Laboratory for Non-Linear Spectroscopy and Dipartimento di Fisica, Università di Firenze, via N. Carrara 1, I-50019 Sesto Fiorentino, Firenze, Italy;
INFN, via G. Sansone 1, I-50019 Sesto Fiorentino, Firenze, Italy;
CNR-INFM, via G. Sansone 1, I-50019 Sesto Fiorentino, Firenze, Italy

Abstract: We report on an experimental realization of a two-dimensional magneto-optical trap (2D-MOT) that allows the generation of cold atomic beams of K-39 and K-41 bosonic potassium isotopes. The high measured fluxes up to 1.0×10(11) atoms/s and low atomic velocities around 33 m/s are well suited for a fast and reliable three-dimensional magneto-optical trap loading, a basilar feature for new generation experiments on Bose-Einstein condensation of dilute atomic samples. We also present a simple multilevel theoretical model for the calculation of the light-induced force acting on an atom moving in a MOT. The model gives a good agreement between predicted and measured flux and velocity values for our 2D-MOT.


Volume: 73 (3)      Pages from: 033415-1  to: 033415-9

KeyWords: Bosonic potassium isotopes; Dilute atomic samples; Magneto-optical trap loading, Magnetooptical effects; Mathematical models; Optical properties; Potassium; Reliability, Isotopes
DOI: 10.1103/PhysRevA.73.033415

Citations: 44
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