Projects per year
Abstract
Compact vacuum systems are key enabling components for cold atom technologies, facilitating extremely accurate sensing applications. There has been important progress toward a truly portable compact vacuum system; however, size, weight, and power consumption can be prohibitively large, optical access may be limited, and active pumping is often required. Here, we present a centiliter-scale ceramic vacuum chamber with He-impermeable viewports and an integrated diffractive optic, enabling robust laser cooling with light from a single polarization-maintaining fiber. A cold atom demonstrator based on the vacuum cell delivers 10 7 laser-cooled 87Rb atoms per second, using minimal electrical power. With continuous Rb gas emission, active pumping yields a 17 day time constant. A vacuum cell, with no Rb dispensing and only passive pumping, has currently kept a similar pressure for more than 500 days. The passive-pumping vacuum lifetime is several years, which is estimated from short-term He throughput with many foreseeable improvements. This technology enables wide-ranging mobilization of ultracold quantum metrology.
Original language | English |
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Article number | 124002 |
Number of pages | 6 |
Journal | Applied Physics Letters |
Volume | 119 |
Issue number | 12 |
Early online date | 20 Sep 2021 |
DOIs | |
Publication status | Published - 20 Sep 2021 |
Keywords
- ultracold quantum gases
- optical traps
- quantum technology
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UK National Quantum Technology Hub in Sensors and Timing
Riis, E., Arnold, A., Griffin, P. & Hastie, J.
EPSRC (Engineering and Physical Sciences Research Council)
1/12/19 → 30/11/24
Project: Research
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gMOT: Scalable manufacture and evaluation of miniature cold atom traps IUK project with KNT&TMD
Riis, E., Arnold, A. & Griffin, P.
1/09/17 → 31/03/19
Project: Research
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UK Quantum Technology Hub for Sensors and Metrology
Hastie, J., Arnold, A., Griffin, P., Kemp, A. & Riis, E.
EPSRC (Engineering and Physical Sciences Research Council)
1/12/14 → 30/11/19
Project: Research
Datasets
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Data for: "Stand-alone vacuum cell for compact ultracold quantum technologies"
Arnold, A. (Contributor), Burrow, O. (Creator), Griffin, P. (Contributor) & Riis, E. (Contributor), University of Strathclyde, 7 Sep 2021
DOI: 10.15129/b16d05fc-fca5-47a9-b18e-8a1936ce7c22
Dataset