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

2018/10/31 by James Keaveney, J. Keaveney, Francisco S Ponciano-Ojeda +9 · 2 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Field (mathematics) #Field strength #Magnetic field #Quantum optics and atomic interactions #Sensitivity (control systems) #Spectral line #Spectroscopy #physics.atom-ph

paper · pdf · doi:10.1088/1361-6455/ab0186

published as Journal of Physics B: Atomic, Molecular and Optical Physics, Feb. 2019 · 9 pages, 8 figures

openalex created_date 2018/10/12 · openalex publication_date 2019/01/24 · arxiv created 2019/02/23 · arxiv updated 2019/02/26 · openalex updated_date 2026/08/06

Abstract

We present a detailed spectroscopic investigation of a thermal 87 Rb 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 ∼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 ∼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.

Citations

• Optical control of Faraday rotation in hot Rb vapor
• Optical isolator using an atomic vapor in the hyperfine Paschen–Back regime
• Off-resonance absorption and dispersion in vapours of hot alkali-metal atoms
• The ITER design
• Absolute absorption on the rubidium D1line including resonant dipole–dipole interactions
• High Magnetic Field Science and Its Application in the United States

Cited by

• Absorption spectroscopy and Stokes polarimetry in a ⁸⁷Rb vapour in the Voigt geometry with a 1.5 T external magnetic field
• Features of magnetically-induced atomic transitions of the Rb D 1 line studied by a Doppler-free method based on the second derivative of the absorption spectra