Off-resonance absorption and dispersion in vapours of hot alkali-metal atoms

2009/05/08 by Paul Siddons, Charles S. Adams, Charles S Adams +2 · 5 citations
Materials Science · Physics and Astronomy · #Atomic and Subatomic Physics Research #Lanthanide and Transition Metal Complexes #Quantum optics and atomic interactions #physics.atom-ph

paper · pdf · doi:10.1088/0953-4075/42/17/175004

published as J. Phys. B: At. Mol. Opt. Phys. 42 175004 (2009) · 9 pages, 4 figures

arxiv created 2009/05/08 · openalex publication_date 2009/08/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We study the absorptive and dispersive properties of Doppler-broadened atomic media as a function of detuning. Beginning from the exact lineshape calculated for a two-level atom, a series of approximations to the electric susceptibility are made. These simplified functions facilitate direct comparison between absorption and dispersion, and show that dispersion dominates the atom–light interaction far from resonance. The calculated absorption and dispersion are compared to experimental data for Rb vapour on the D1 transition, showing the validity of the approximations.
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Citations

• A heated vapor cell unit for dichroic atomic vapor laser lock in atomic rubidium
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