Sub-Doppler Laser Cooling of 23Na in Gray Molasses on the D 2 Line.

Autor: Zhenlian Shi, Ziliang Li, Pengjun Wang, Zengming Meng, Lianghui Huang, Jing Zhang
Předmět:
Zdroj: Chinese Physics Letters; Dec2018, Vol. 35 Issue 12, p1-1, 1p
Abstrakt: We report on the efficient gray molasses cooling of sodium atoms using the D2optical transition at 589.1 nm. Thanks to the hyperfine split aboutbetweenandin the excited state , this atomic transition is effective for the gray molasses cooling mechanism. Using this cooling technique, the atomic sample in F = 2 ground manifold is cooled fromtoin 3.5 ms. We observe that the loading efficiency into magnetic trap is increased due to the lower temperature and high phase space density of atomic cloud after gray molasses. This technique offers a promising route for the fast cooling of the sodium atoms in the F = 2 state. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index