Absolute absorption and dispersion of a rubidium vapour in the hyperfine Paschen-Back regime

Here we report on measurements of the absolute absorption and dispersion properties of an isotopically pure 87Rb vapour for magnetic fields up to and including 0.6 T. We discuss the various regimes that arise when the hyperfine and Zeeman interactions have different magnitudes, and show that we ente...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2012-11, Vol.45 (21), p.215005-1-7
Main Authors: Weller, Lee, Kleinbach, Kathrin S, Zentile, Mark A, Knappe, Svenja, Adams, Charles S, Hughes, Ifan G
Format: Article
Language:English
Subjects:
absorption
Atomic and molecular physics
Atomic properties and interactions with photons
atomic vapour
dispersion
Dispersions
Exact sciences and technology
Magnetic fields
Magnetic permeability
mangetic field
Mathematical analysis
Paschen-Back
Physics
Rubidium
Strength
Vapour
Zeeman and stark effects
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Summary:Here we report on measurements of the absolute absorption and dispersion properties of an isotopically pure 87Rb vapour for magnetic fields up to and including 0.6 T. We discuss the various regimes that arise when the hyperfine and Zeeman interactions have different magnitudes, and show that we enter the hyperfine Paschen-Back regime for fields greater than 0.33 T on the Rb D2 line. The experiment uses a compact 1 mm3 microfabricated vapour cell that makes it easy to maintain a uniform and large magnetic field with a small and inexpensive magnet. We find excellent agreement between the experimental results and numerical calculations of the weak probe susceptibility where the line positions and strengths are calculated by matrix diagonalization.
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/45/21/215005