Preparation of a high concentration of lithium-7 atoms in a magneto-optical trap

作者：Zelener B B; Saakyan S A; Sautenkov V A; Manykin E A; Zelener B V; Fortov V E

来源：Journal of Experimental and Theoretical Physics, 2014, 119(5): 795-801.

DOI：10.1134/S1063776114110211

This study is aimed at obtaining high concentration of optically cooled lithium-7 atoms for preparing strongly interacting ultracold plasma and Rydberg matter. A special setup has been constructed, in which two high-power semiconductor lasers are used to cool lithium-7 atoms in a magneto-optical trap. At an optimum detuning of the cooling laser frequency and a magnetic field gradient of 35 G/cm, the concentration of ultracold lithium-7 atoms reaches about 10(11) cm(-3). Additional independent information about the concentration and number of ultracold lithium-7 atoms on different sublevels of the ground state was obtained by using of an additional probing laser.

• 出版日期2014-11