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In-situ Raman gain between hyperfine ground states in a potassium magneto-optical trap

Authors :
Harvie, Graeme
Butcher, Adam
Goldwin, Jon
Source :
Phys. Rev. A 100, 033408 (2019)
Publication Year :
2019

Abstract

We study optical gain in a gas of cold 39K atoms. The gain is observed during operation of a conventional magneto-optical trap without the need for additional fields. Measurements of transmission spectra from a weak probe show that the gain is due to stimulated Raman scattering between hyperfine ground states. The experimental results are reproduced by a simplified six-level model, which also helps explain why such gain is not observed in similar experiments with rubidium or cesium.<br />Comment: 7 pages, 7 figures; submitted for publication; v2: minor changes in response to Referee comments; v3: version accepted for publication in PRA

Details

Database :
arXiv
Journal :
Phys. Rev. A 100, 033408 (2019)
Publication Type :
Report
Accession number :
edsarx.1906.05756
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevA.100.033408