Quantitative optical spectroscopy of $^{87}$Rb vapour in the Voigt geometry in DC magnetic fields up to 0.4T

Keaveney, James; Ponciano-Ojeda, Francisco S.; Rieche, Stefan M.; Raine, Mark J.; Hampshire, Damian P.; Hughes, Ifan G.

Abstract

We present a detailed spectroscopic investigation of a thermal ⁸⁷Rb atomic vapour in magnetic fields up to 0.4T in the Voigt geometry. We fit experimental spectra with our theoretical model ElecSus and find excellent quantitative agreement, with RMS errors of backsim0.3%. 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 backsim1% 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.

Citation

Keaveney, J., Ponciano-Ojeda, F. S., Rieche, S. M., Raine, M. J., Hampshire, D. P., & Hughes, I. G. (2019). Quantitative optical spectroscopy of $^{87}$Rb vapour in the Voigt geometry in DC magnetic fields up to 0.4T. Journal of Physics B: Atomic, Molecular and Optical Physics, 52(5), Article 055003. https://doi.org/10.1088/1361-6455/ab0186

• Journal Article Type: Article
• Acceptance Date: Jan 11, 2019
• Online Publication Date: Feb 13, 2019
• Publication Date: Mar 14, 2019
• Deposit Date: Oct 2, 2018
• Publicly Available Date: Feb 13, 2019
• Journal: Journal of Physics B: Atomic, Molecular and Optical Physics
• Print ISSN: 0953-4075
• Electronic ISSN: 1361-6455
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 52
• Issue: 5
• Article Number: 055003
• DOI: https://doi.org/10.1088/1361-6455/ab0186
• Public URL: https://durham-repository.worktribe.com/output/1346991