Sensitive and accurate quantum magnetometry for GNSS-denied positioning, critical national infrastructure, and magnetic anomaly detection

Stuart Ingleby; Dominic Hunter; Marcin Mrozowski; Paul Griffin; Erling Riis

doi:10.1117/12.3030911

Sensitive and accurate quantum magnetometry for GNSS-denied positioning, critical national infrastructure, and magnetic anomaly detection

Stuart Ingleby, Dominic Hunter, Marcin Mrozowski, Paul Griffin, Erling Riis

Research output: Contribution to journal › Conference article › peer-review

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Abstract

Optically pumped magnetometers (OPMs) exploiting alkali metal vapours for accurate, precise magnetometry have benefited from improvements in components and techniques in recent years. Microfabrication of alkali cells and chip-scale lasers allow mass-production of compact sensors, and feedback an spin-preparation techniques, such as light-narrowing, allow enhanced performance, comparable with cryogenic SQUID magnetometers. I will introduce two OPM modalities developed at Strathclyde for geomagnetic operation- the digital alkali-spin maser and geophysical free-precession magnetometer. I will discuss the potential impacts of using these sensors for geophysical applications, including Global Navigation Satellite System (GNSS)-denied positioning, monitoring of space weather and magnetic anomaly detection. I will present developments in microfabrication and digital signal processing which will enable their widespread adoption.

Original language	English
Article number	1320203
Journal	Proceedings of SPIE: The International Society for Optical Engineering
Volume	13202
DOIs	https://doi.org/10.1117/12.3030911
Publication status	Published - 24 Nov 2024
Event	Security + Defence 2024 - Edinburgh, United Kingdom Duration: 16 Sept 2024 → 20 Sept 2024

Funding

We gratefully acknowledge PRF funding from the Quantum Technology Hub in Sensing and Timing (EP/T001046/1, QTPRF16).

Keywords

optically pumped magnetometers
space weather
GEOMAGNETIC ANOMALY MEASUREMENT
magnetometry
geomagnetism
quantum sensing

Access to Document

10.1117/12.3030911

Ingleby-etal-Sensitive-and-accurate-quantum-magnetometry-for-GNSS-denied-positioning-critica- national-infrastructure-and-magnetic-anomaly-detection
Copyright © 2024 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Final published version, 406 KBLicence: All rights reserved

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

Cite this

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title = "Sensitive and accurate quantum magnetometry for GNSS-denied positioning, critical national infrastructure, and magnetic anomaly detection",

abstract = "Optically pumped magnetometers (OPMs) exploiting alkali metal vapours for accurate, precise magnetometry have benefited from improvements in components and techniques in recent years. Microfabrication of alkali cells and chip-scale lasers allow mass-production of compact sensors, and feedback an spin-preparation techniques, such as light-narrowing, allow enhanced performance, comparable with cryogenic SQUID magnetometers. I will introduce two OPM modalities developed at Strathclyde for geomagnetic operation- the digital alkali-spin maser and geophysical free-precession magnetometer. I will discuss the potential impacts of using these sensors for geophysical applications, including Global Navigation Satellite System (GNSS)-denied positioning, monitoring of space weather and magnetic anomaly detection. I will present developments in microfabrication and digital signal processing which will enable their widespread adoption.",

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note = "Copyright {\textcopyright} 2024 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.; Security + Defence 2024 ; Conference date: 16-09-2024 Through 20-09-2024",

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Sensitive and accurate quantum magnetometry for GNSS-denied positioning, critical national infrastructure, and magnetic anomaly detection. / Ingleby, Stuart ; Hunter, Dominic ; Mrozowski, Marcin et al.
In: Proceedings of SPIE: The International Society for Optical Engineering, Vol. 13202, 1320203, 24.11.2024.

Research output: Contribution to journal › Conference article › peer-review

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AU - Hunter, Dominic

AU - Mrozowski, Marcin

AU - Griffin, Paul

AU - Riis, Erling

N1 - Copyright © 2024 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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N2 - Optically pumped magnetometers (OPMs) exploiting alkali metal vapours for accurate, precise magnetometry have benefited from improvements in components and techniques in recent years. Microfabrication of alkali cells and chip-scale lasers allow mass-production of compact sensors, and feedback an spin-preparation techniques, such as light-narrowing, allow enhanced performance, comparable with cryogenic SQUID magnetometers. I will introduce two OPM modalities developed at Strathclyde for geomagnetic operation- the digital alkali-spin maser and geophysical free-precession magnetometer. I will discuss the potential impacts of using these sensors for geophysical applications, including Global Navigation Satellite System (GNSS)-denied positioning, monitoring of space weather and magnetic anomaly detection. I will present developments in microfabrication and digital signal processing which will enable their widespread adoption.

AB - Optically pumped magnetometers (OPMs) exploiting alkali metal vapours for accurate, precise magnetometry have benefited from improvements in components and techniques in recent years. Microfabrication of alkali cells and chip-scale lasers allow mass-production of compact sensors, and feedback an spin-preparation techniques, such as light-narrowing, allow enhanced performance, comparable with cryogenic SQUID magnetometers. I will introduce two OPM modalities developed at Strathclyde for geomagnetic operation- the digital alkali-spin maser and geophysical free-precession magnetometer. I will discuss the potential impacts of using these sensors for geophysical applications, including Global Navigation Satellite System (GNSS)-denied positioning, monitoring of space weather and magnetic anomaly detection. I will present developments in microfabrication and digital signal processing which will enable their widespread adoption.

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KW - space weather

KW - GEOMAGNETIC ANOMALY MEASUREMENT

KW - magnetometry

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SN - 0277-786X

VL - 13202

JO - Proceedings of SPIE: The International Society for Optical Engineering

JF - Proceedings of SPIE: The International Society for Optical Engineering

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T2 - Security + Defence 2024

Y2 - 16 September 2024 through 20 September 2024

ER -

Sensitive and accurate quantum magnetometry for GNSS-denied positioning, critical national infrastructure, and magnetic anomaly detection

Abstract

Funding

Keywords

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Projects

UK National Quantum Technology Hub in Sensing and Timing

Cite this