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The blue light in a ladder system: from double resonance optical pumping to Autler-Townes splitting.
- Source :
-
European Physical Journal D (EPJ D) . Jul2018, Vol. 72 Issue 7, p1-1. 1p. - Publication Year :
- 2018
-
Abstract
- Abstract: In this experimental work we report our findings about a Ladder (Ξ) transition 5S1∕2 → 5P3∕2 → 5D3∕2 of 85Rb atoms under different laser power combinations. Based on the ratio of power levels of two individual lasers, which are used in counter-propagating configuration, the system exhibits double resonance optical pumping and Autler-Townes splitting. The excursion of the Ξ level coupling is studied alongwith photon counting of blue light originating from 5D3∕2 → 6P3∕2 → 5S1∕2 non-degenerate decay. The blue photon statistics shows that emitted radiation are thermal. However the probability density of the integrated photon count vs. laser power exhibits a jump in intensity scale followed by a long tail, which resembles Lèvy type distribution. This may be considered as a signature when the level dressing changes in Ξ system as theoretically discussed earlier by Abi-Salloum [T.Y. Abi-Salloum, J. Mod. Opt. 57, 1366 (2010); T.Y. Abi-Salloum, Phys. Rev. A 81, 053836 (2010)]. Graphical abstract: <graphic></graphic> [ABSTRACT FROM AUTHOR]
- Subjects :
- *BLUE light
*LASERS
*OPTICAL pumping
*COUPLING schemes
*PHOTONS
Subjects
Details
- Language :
- English
- ISSN :
- 14346060
- Volume :
- 72
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- European Physical Journal D (EPJ D)
- Publication Type :
- Academic Journal
- Accession number :
- 131336327
- Full Text :
- https://doi.org/10.1140/epjd/e2018-90146-3