Cooling mechanisms in potassium magneto-optical traps

Year: 1998

Authors: Fort C., Bambini A., Cacciapuoti L., Cataliotti F.S., Prevedelli M., Tino G.M., Inguscio M.

Autors Affiliation: iv Florence, European Lab Nonlinear Spect, I-50125 Florence, Italy; CNR, Ist Elettron Quantist, I-50127 Florence, Italy; Univ Florence, INFM, Dipartimento Fis, I-50125 Florence, Italy.

Abstract: We report on a theoretical and experimental investigation of K-39 magneto-optical trapping. The small hyperfine splitting characterizing the upper level of the cooling transition affects the cooling mechanism. In order to model the atom-laser inter action, the whole level structure of the D-2 line has to be taken into account. Two different regimes have been recognized, one optimizing the loading of the trap, the second minimizing the temperature of the atoms. We investigated these two regimes experimentally and found results in agreement with the theoretical predictions.

Journal/Review: EUROPEAN PHYSICAL JOURNAL D

Volume: 3 (2)      Pages from: 113  to: 118

KeyWords: Atoms
DOI: 10.1007/s100530050154

Citations: 26
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