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Four-wave mixing in a non-degenerate four-level diamond configuration in the hyperfine Paschen–Back regime.

Whiting, Daniel J. and Mathew, Renju S. and Keaveney, James and Adams, Charles S. and Hughes, Ifan G. (2018) 'Four-wave mixing in a non-degenerate four-level diamond configuration in the hyperfine Paschen–Back regime.', Journal of modern optics., 65 (2). pp. 119-128.

Abstract

We present an experimental study of seeded four-wave mixing (4WM) using a diamond excitation scheme (with states from the 5S1/2,5P1/2,5P3/25S1/2,5P1/2,5P3/2 and 5D3/25D3/2 terms) in a thermal vapour of 87Rb87Rb atoms. We investigate the 4WM spectra under the application of a strong magnetic field (0.6 T). The Zeeman interaction is strong enough to realize the hyperfine Paschen–Back regime, which has the effect of separating the optical transitions by more than the Doppler width, thereby significantly simplifying the spectral features. We show that this facilitates a quantitative comparison, even in the regime of strong dressing, between experimental data and a simple theoretical model based only on four-level optical Bloch equations.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1080/09500340.2017.1377308
Publisher statement:This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of modern optics on 25/09/2017 available online: https://doi.org/10.1080/09500340.2017.1377308
Date accepted:29 August 2017
Date deposited:06 October 2017
Date of first online publication:25 September 2017
Date first made open access:25 September 2018

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