A rubidium frequency-standard based on a MEMS vapour cell

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Johnson, Steven and McWillian, Allan and MacLennan, Eilidh and Riis, Erling and McGilligan, James and Griffin, Paul; (2025) A rubidium frequency-standard based on a MEMS vapour cell. In: 2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). 2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) . IEEE, DEU. ISBN 979-8-3315-1252-1 (https://doi.org/10.1109/cleo/europe-eqec65582.2025...)

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Abstract

An optical atomic frequency-reference based on a vapour of atoms is a strong candidate for a creating a portable atomic clock with sufficient stability to be a reliable independent timing system for major infrastructure in the event of GNSS denial. We present the development of optical atomic frequency-standards within the University of Strathclyde, where MEMS vapour cells and lasers have been developed for a miniaturised rubidium frequency-reference. Existing chip-scale systems have been demonstrated by others using a microwave transition, however an optical clock offers a significantly higher frequency to enable a lower instability.

ORCID iDs

Johnson, Steven ORCID logoORCID: https://orcid.org/0000-0002-6181-8303, McWillian, Allan, MacLennan, Eilidh, Riis, Erling ORCID logoORCID: https://orcid.org/0000-0002-3225-5302, McGilligan, James ORCID logoORCID: https://orcid.org/0000-0002-6514-9696 and Griffin, Paul ORCID logoORCID: https://orcid.org/0000-0002-0134-7554;
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