Berlin 2005 – scientific programme

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Q: Quantenoptik und Photonik

Q 45: Quanteneffekte III

Q 45.3: Talk

Tuesday, March 8, 2005, 15:00–15:15, HU 1072

Nonlinear Properties of Resonantly Driven Atomic Gases — •Sarah Schröder¹, Giovanna Morigi², and Sonja Franke-Arnold³ — ¹Abteilung für Quantenphysik, Universität Ulm, Germany — ²Departament de Fisica, Universitat Autonoma de Barcelona, Spain — ³Department of Physics, University of Strathclyde, Glasgow, United Kingdom

In atomic configurations with a closed cycle of radiation-induced transitions, the dynamics and the steady-state of the atom depends critically on the relative phase between the driving lasers [1]. In this work we consider light propagation in a medium of atoms with diamond configuration of levels and investigate how the initial phase between the fields entering the medium affects the dynamics of light propagation. We present an analytical and numerical study of the propagation dynamics in its dependence on the initial laser parameters for this kind of medium, and compare our results with the dynamics of light propagation in a medium of double-Λ atoms [2].

1. [1] G. Morigi, S. Franke-Arnold and G.-L. Oppo,
     Phys. Rev. A 66, 053409 (2002)
2. [2] E. A. Korsunsky and D. V. Kosachiov,
     Phys. Rev. A 60, 4996 (1999)