- Steady-State Magneto-Optical Trap with 100-Fold Improved Phase-Space Density
- Physical Review Letters
- Volume | Issue number
- 119 | 22
- Article number
- Number of pages
- Document type
- Faculty of Science (FNWI)
- Van der Waals-Zeeman Institute (WZI)
Institute of Physics (IoP)
We demonstrate a continuously loaded 88Sr magneto-optical trap (MOT) with a steady-state phase-space density of 1.3(2)×10−3 . This is 2 orders of magnitude higher than reported in previous steady-state MOTs. Our approach is to flow atoms through a series of spatially separated laser cooling stages before capturing them in a MOT operated on the 7.4-kHz linewidth Sr intercombination line using a hybrid slower+MOT configuration. We also demonstrate producing a Bose-Einstein condensate at the MOT location, despite the presence of laser cooling light on resonance with the 30-MHz linewidth transition used to initially slow atoms in a separate chamber. Our steady-state high phase-space density MOT is an excellent starting point for a continuous atom laser and dead-time free atom interferometers or clocks.
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- © 2017 American Physical Society
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