Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume 52, Issue 5, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6455/ab0186
Keywords
Voigt geometry; magneto-optical effects; magnetic field; spectroscopy; hyperfine Paschen-Back
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Funding
- EPSRC [EP/L023024/1, EP/R002061/1]
- Durham University
- Durham Doctoral Scholarship
- EPSRC [EP/L023024/1, EP/R002061/1] Funding Source: UKRI
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We present a detailed spectroscopic investigation of a thermal Rb-87 atomic vapour in magnetic fields up to 0.4 T in the Voigt geometry. We fit experimental spectra with our theoretical model ElecSus and find excellent quantitative agreement, with RMS errors of similar to 0.3%. We extract the magnetic field strength and the angle between the polarisation of the light and the magnetic field from the atomic signal and find excellent agreement to within similar to 1% with a commercial Hall probe. Finally, we present an investigation of the relative sensitivity of this technique to variations in the field strength and angle with a view to enabling atom-based high-field vector magnetometry.
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