Collimated, single-pass atom source from a pulsed alkali metal dispenser for laser-cooling experiments

Kevin L. Moore; Thomas P. Purdy; Kater W. Murch; Sabrina Leslie; Subhadeep Gupta; Dan M. Stamper-Kurn

doi:10.1063/1.1841852

Collimated, single-pass atom source from a pulsed alkali metal dispenser for laser-cooling experiments

Kevin L. Moore, Thomas P. Purdy, Kater W. Murch, Sabrina Leslie, Subhadeep Gupta, Dan M. Stamper-Kurn

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

We have developed an improved scheme for loading atoms into a magneto-optical trap (MOT) from a directed rubidium alkali metal dispenser in <10 ^-10Torr ultrahigh vacuum conditions. A current-driven dispenser was surrounded with a cold absorbing "shroud" held at ≤0°C, pumping rubidium atoms not directed into the MOT. This nearly eliminates background atoms and reduces the detrimental rise in pressure normally associated with these devices. The system can be well-described as a current-controlled, rapidly switched, two-temperature thermal beam, and was used to load a MOT with 3 × 10 ⁸ atoms.

Original language	English
Article number	023106
Pages (from-to)	023106-1-023106-4
Journal	Review of Scientific Instruments
Volume	76
Issue number	2
DOIs	https://doi.org/10.1063/1.1841852
State	Published - Jan 25 2005

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AU - Moore, Kevin L.

AU - Purdy, Thomas P.

AU - Murch, Kater W.

AU - Leslie, Sabrina

AU - Gupta, Subhadeep

AU - Stamper-Kurn, Dan M.

PY - 2005/1/25

Y1 - 2005/1/25

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AB - We have developed an improved scheme for loading atoms into a magneto-optical trap (MOT) from a directed rubidium alkali metal dispenser in <10 -10Torr ultrahigh vacuum conditions. A current-driven dispenser was surrounded with a cold absorbing "shroud" held at ≤0°C, pumping rubidium atoms not directed into the MOT. This nearly eliminates background atoms and reduces the detrimental rise in pressure normally associated with these devices. The system can be well-described as a current-controlled, rapidly switched, two-temperature thermal beam, and was used to load a MOT with 3 × 10 8 atoms.

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ER -

Collimated, single-pass atom source from a pulsed alkali metal dispenser for laser-cooling experiments

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