Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
12059105 | Optics Communications | 2019 | 4 Pages |
Abstract
We report on the observation of magnetically assisted narrow band probe beam amplification in Zeeman degenerate closed two-level system associated with cold cesium atoms. In the experiment the closed cesium D2 hyperfine transition Fg=3âFe=2 is coherently excited by a probe and an orthogonally polarized coupling beam in the presence of a transverse dc magnetic field. Single pass gain of 80% is observed for moderate values of the magnetic field and coupling beam power. The gain mechanism can be understood in terms of population transfer between the different Zeeman ground-state levels induced by the external magnetic field. We have developed a simple theoretical model using a simpler atomic transition Fg=1âFe=0, which accounts reasonably for the main experimentally observed results.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
M. Frometa, J.P. Lopez, J.W.R. Tabosa,