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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8715
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dc.contributor.authorBabaei, Bahar-
dc.contributor.authorSmith, Benjamin D-
dc.contributor.authorTretiakov, Andrei-
dc.contributor.authorNarayanan, Andal-
dc.contributor.authorLeBlanc, Lindsay J-
dc.date.accessioned2026-05-25T06:13:03Z-
dc.date.available2026-05-25T06:13:03Z-
dc.date.issued2026-05-04-
dc.identifier.citationApplied Physics Letters, 2026, Vol. 128 (18), AR No. 184003en_US
dc.identifier.issn1077-3118-
dc.identifier.urihttp://hdl.handle.net/2289/8715-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en_US
dc.description.abstractAtomic systems offer opportunities for noninvasive, accurate vector magnetometers that operate at ambient temperature and are conducive to miniaturization. Here, we demonstrate an unshielded three-axis vector magnetometer whose operation is based on the angle-dependent relative amplitude of cavity-enhanced magneto-optical double-resonance features in a room-temperature atomic ensemble. We determine the vector magnetic field value by sweeping the microwave frequency across all Zeeman sublevels and measuring optical transmission at seven double-resonance features, whose amplitudes vary as the orientation of the external static magnetic field (⁠ ~ Bext) changes with respect to the optical and microwave field polarization directions. Due to the complex dynamics of optical pumping and broadening mechanisms in the Doppler-broadened ensemble, we use a convolutional neural network model to account for details in our measurement spectra; this analysis determines the magnetic field direction with an accuracy of 1° and its amplitude with an accuracy of 56 nT measured at the near-Earth-field value of 50 μT.en_US
dc.language.isoenen_US
dc.publisherAIP Publishingen_US
dc.relation.urihttps://doi.org/10.48550/arXiv.2507.08791en_US
dc.relation.urihttps://doi.org/10.1063/5.0323832en_US
dc.rightsAIP Publishingen_US
dc.titleMicrowave-optical double-resonance vector magnetometry with warm Rb atomsen_US
dc.typeArticleen_US
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