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Phase-dependent interaction in a four-level atomic configuration
Morigi, Giovanna (Max-Planck-Institut für Quantenoptik)
Franke-Arnold, Sonja (University of Strathclyde. Department of Physics)
Oppo, Gian-Luca (University of Strathclyde. Department of Physics)
American Physical Society

Data: 2002
Resum: We study a four-level atomic scheme interacting with four lasers in a closed-loop configuration with a ⋄ (diamond) geometry. We investigate the influence of the laser phases on the steady state. We show that, depending on the phases and the decay characteristic, the system can exhibit a variety of behaviors, including population inversion and complete depletion of an atomic state. We explain the phenomena in terms of multiphoton interference, and compare our results with the phase-dependent phenomena in the double-Λ scheme. This investigation may be useful for developing nonlinear optical devices, and for the spectroscopy and laser cooling of alkali-earth atoms.
Drets: Tots els drets reservats.
Llengua: Anglès
Document: article ; recerca ; publishedVersion
Publicat a: Physical review. A, Vol. 66, Issue 5 (November 2002) , p. 053409-1-053409-9, ISSN 1050-2947

DOI: 10.1103/PhysRevA.66.053409

9 p, 130.8 KB

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