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Abstract
Cold atom fountain clocks provide exceptional long term stability as they increase interrogation time at the expense of a larger size. We present a compact cold atom fountain using a grating magneto-optical trap (GMOT) to laser cool and launch the atoms in a simplified optical setup. The fountain is evaluated using coherent population trapping and demonstrates improved single-shot stability from the launch. Ramsey times up to 100ms were measured with a corresponding fringe linewidth of 5Hz. This technique could improve both short and long-term stability of cold atom clocks while remaining compact for portable applications.
Original language | English |
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Article number | 164001 |
Number of pages | 5 |
Journal | Applied Physics Letters |
Volume | 121 |
Issue number | 16 |
DOIs | |
Publication status | Published - 21 Oct 2022 |
Keywords
- cold atom clocks
- cold atom fountain
- magneto-optical trap
- grating chip
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Dive into the research topics of 'A grating-chip atomic fountain'. Together they form a unique fingerprint.Projects
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UK National Quantum Technology Hub in Sensing and Timing
Riis, E., Arnold, A., Griffin, P., Hastie, J., Ingleby, S., Moriya, P. & Moriya, P.
EPSRC (Engineering and Physical Sciences Research Council)
1/12/19 → 30/11/24
Project: Research
Datasets
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Data for: "A grating-chip atomic fountain"
Lewis, B. (Creator) & Griffin, P. (Data Manager), University of Strathclyde, 12 Jul 2022
DOI: 10.15129/3847c7ff-f2f7-473b-8036-bcc4b261c7b8
Dataset