A grating-chip atomic fountain

Ben Lewis; Rachel Elvin; Aidan S. Arnold; Erling Riis; Paul F. Griffin

doi:10.1063/5.0115382

A grating-chip atomic fountain

Ben Lewis, Rachel Elvin, Aidan S. Arnold, Erling Riis, Paul F. Griffin

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

5 Citations (Scopus)

26 Downloads (Pure)

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
Article number	164001
Number of pages	5
Journal	Applied Physics Letters
Volume	121
Issue number	16
DOIs	https://doi.org/10.1063/5.0115382
Publication status	Published - 21 Oct 2022

Keywords

cold atom clocks
cold atom fountain
magneto-optical trap
grating chip

Access to Document

10.1063/5.0115382Licence: CC BY 4.0

Lewis-etal-APL-2022-A-grating-chip-atomic-fountainFinal published version, 1.26 MBLicence: CC BY 4.0

UK National Quantum Technology Hub in Sensing and Timing
Griffin, P. (Principal Investigator), Hunter, D. (Principal Investigator), Johnson, S. (Principal Investigator), McGilligan, J. P. (Principal Investigator), Moriya, P. (Principal Investigator), Riis, E. (Principal Investigator), Arnold, A. (Co-investigator), Griffin, P. (Co-investigator), Hastie, J. (Co-investigator), Ingleby, S. (Co-investigator), Moriya, P. (Research Co-investigator) & Moriya, P. (Research Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/12/19 → 30/11/24
Project: Research

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

Cite this

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AU - Griffin, Paul F.

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N2 - 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.

AB - 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.

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KW - magneto-optical trap

KW - grating chip

U2 - 10.1063/5.0115382

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A grating-chip atomic fountain

Abstract

Keywords

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UK National Quantum Technology Hub in Sensing and Timing

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Data for: "A grating-chip atomic fountain"

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