A grating-chip atomic fountain
| Autor: | Ben Lewis, Rachel Elvin, Aidan S. Arnold, Erling Riis, Paul F. Griffin |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Applied Physics Letters. 121:164001 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/5.0115382 |
| Popis: | 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 100 ms were measured with a corresponding fringe linewidth of 5 Hz. This technique could improve both short- and long-term stability of cold atom clocks whilst remaining compact for portable applications. 5 pages, 4 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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