Electromagnetically induced transparency in a V-system with 87Rb vapor in the hyperfine Paschen–Back regime

Higgins, Clare R.; Hughes, Ifan G.

doi:10.1088/1361-6455/ac20be

Electromagnetically induced transparency in a V-system with 87Rb vapor in the hyperfine Paschen–Back regime

Higgins, Clare R.; Hughes, Ifan G.

Authors

Clare Higgins clare.r.higgins@durham.ac.uk
Academic Visitor

Professor Ifan Hughes i.g.hughes@durham.ac.uk
Professor

Abstract

We observe electromagnetically induced transparency (EIT) in a V-system in a thermal rubidium-87 vapour in the hyperfine Paschen-Back regime, realised with a 0.6 T axial magnetic field. In this regime energy levels are no longer degenerate and EIT features from different initial states are distinct, which we show produces a much cleaner feature than without a magnetic field. We compare our results to a model using the time-dependent Lindblad master equation, and having averaged over a distribution of interaction times, see good qualitative agreement for a range of pump Rabi frequencies. Excited state decay into both ground states is shown to play a prominent role in the generation of the transparency feature, which arises mainly due to transfer of population into the ground state not coupled by the probe beam. We use the model to investigate the importance of coherence in this feature, showing that its contribution is more significant at smaller pump Rabi frequencies.

Citation

Higgins, C. R., & Hughes, I. G. (2021). Electromagnetically induced transparency in a V-system with 87Rb vapor in the hyperfine Paschen–Back regime. Optics Letters, 54(16), Article 165403. https://doi.org/10.1088/1361-6455/ac20be

Journal Article Type	Article
Acceptance Date	Aug 24, 2021
Online Publication Date	Sep 14, 2021
Publication Date	2021
Deposit Date	Apr 21, 2021
Publicly Available Date	Sep 20, 2021
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Print ISSN	0146-9592
Publisher	Optica
Peer Reviewed	Peer Reviewed
Volume	54
Issue	16
Article Number	165403
DOI	https://doi.org/10.1088/1361-6455/ac20be

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