Advances in unshielded optically pumped alkali magnetometers
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Ingleby, Stuart and Hunter, Dominic and Riis, Erling (2026) Advances in unshielded optically pumped alkali magnetometers. Contemporary Physics. pp. 1-11. ISSN 0010-7514 (https://doi.org/10.1080/00107514.2026.2667646)
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Abstract
The development of optically pumped magnetometers (OPMs) capable of operating in fields up to and beyond Earth's field has been accelerated in recent years by advances in the micro-fabrication of components, such as alkali-vapour cells and chip-scale lasers, and the application of spin-exchange relaxation suppression techniques, such as light-narrowing. Using these techniques, OPMs can be built for highly-accurate scalar geo-magnetometry. Sub-picotesla sensitivity can be achieved in compact packages, and commercialisation of these technologies is progressing globally. We review the underlying principles for OPM operation, including optimisation of microfabricated alkali vapour cells, and summarise the current state-of-the-art in their application.
ORCID iDs
Ingleby, Stuart
ORCID: https://orcid.org/0000-0001-7473-9949, Hunter, Dominic ORCID: https://orcid.org/0000-0003-4177-6027 and Riis, Erling ORCID: https://orcid.org/0000-0002-3225-5302;
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Item type: Article ID code: 96425 Dates: DateEvent1 June 2026Published1 June 2026Published Online14 April 2026AcceptedSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 05 Jun 2026 09:18 Last modified: 09 Oct 2026 03:25 URI: https://strathprints.strath.ac.uk/id/eprint/96425