Magneto-optical Trapping of Cadmium

Abstract

We report the laser-cooling and confinement of Cd atoms in a magneto-optical trap, and characterize the loading process from the background Cd vapor. The trapping laser drives the 1S0-1P1 transition at 229 nm in this two-electron atom and also photoionizes atoms directly from the 1P1 state. This photoionization overwhelms the other loss mechanisms and allows a direct measurement of the photoionization cross section, which we measure to be 2(1)x10^(-16)cm^(2) from the 1P1 state. When combined with nearby laser-cooled and trapped Cd^(+) ions, this apparatus could facilitate studies in ultracold interactions between atoms and ions.

8 pages, 11 figures

References in corpus (4)

• Mesoscopic molecular ions in Bose-Einstein condensates
• Observation and absolute frequency measurements of the 1S0 - 3P0 optical clock transition in ytterbium
• Efficient magneto-optical trapping of Yb atoms with a violet laser diode
• Efficient Photoionization-Loading of Trapped Cadmium Ions with Ultrafast Pulses

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