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dc.contributor.authorPyragius, Tadas
dc.contributor.otherMarin Florez, Hans
dc.contributor.otherFernholz, Thomas
dc.description.abstractWe describe a method to dispersively detect all three vector components of an external magnetic field using alkali atoms based on the Voigt effect. Our method relies on measuring the linear birefringence of the radio frequency dressed atomic medium via polarization homodyning. This gives rise to modulated polarization signals at the first and second harmonic of the dressing frequency. The vector components of the external magnetic field are mapped onto the quadratures of these harmonics. We find that our scheme can be utilised in both cold and hot atomic gases to detect such external fields in shielded and unshielded environments. In the shielded hot vapour case we achieve field sensitivities well below 1~pT/√ Hz range for all 3 vector components, using pump-probe cycles with 125 Hz repetition rate, and limited by the short coherence time of the cell. Finally, our scheme has a simple single axis beam geometry making it advantageous for miniature magnetic field sensors.en_UK
dc.publisherThe University of Nottinghamen_UK
dc.subject.lcshVoigt effecten_UK
dc.subject.lcshMagnetic fieldsen_UK
dc.titleA Voigt effect based 3D vector magnetometeren_UK
dc.subject.freemagnetometry, Atoms Quantum optics, dispersive detection, radio-frequency dressingen_UK
dc.subject.jacsPhysical sciences::Physics::Optical physics, Laser physicsen_UK
dc.subject.lcQ Science::QC Physics::QC350 Optics. Light, including spectroscopyen_UK
dc.subject.lcQ Science::QC Physics::QC501 Electricity and magnetismen_UK
uon.divisionUniversity of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomyen_UK
uon.funder.controlledEngineering & Physical Sciences Research Councilen_UK
uon.datatypefigures, data tablesen_UK
uon.collectionmethodHardware: FPGA, Instruments: Balanced Photodetectoren_UK

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