This PhD project focuses on the development of a field-deployable Free-Induction-Decay Optically Pumped Magnetometer (FID-OPM)—a highly sensitive, self-calibrating scalar magnetometer capable of detecting geomagnetic fields with 200 fT/√Hz sensitivity and <10 pT drift over 10,000+ seconds. The technology, developed at the University of Strathclyde, enables unprecedented resolution in magnetic survey imaging and transient geomagnetic event detection.
In collaboration with AWE, the project will address three core research areas:
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Hardware Development and Validation
- Design and build portable FID-OPM systems using microfabricated alkali vapour cells, chip-scale VCSEL lasers, and high-performance analogue electronics.
- Validate performance in Strathclyde’s precision optical and magnetic testing facilities, targeting TRL 5/6.
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Fundamental Optimisation of FID-OPM Operation
- Investigate the light-narrowing effect and sublevel dynamics in alkali vapour cells to enhance accuracy and precision.
- Conduct both field and lab-based experiments to deepen understanding and publish high-impact research on quantum sensing mechanisms.
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Use-Case Demonstration and System Integration
- Collaborate with AWE to evaluate the sensor across diverse applications, including magnetic anomaly detection, geomagnetic transient monitoring, and GPS-independent navigation.
- Develop system interfaces and integration strategies, including GPS and non-GPS data registration.
This project offers a unique opportunity to contribute to the advancement of quantum-enabled geomagnetic sensing, with strong potential for real-world impact in national security, geophysics, and environmental monitoring.