Pulse pair generation from coherently prepared atomic ensembles
Departamento de Física, Universidade Federal de
Pernambuco, 50670-901, Recife, PE, Brazil
Corresponding author: a firstname.lastname@example.org
Revised: 1 June 2010
Published online: 27 July 2010
We report a detailed investigation on the generation of pulse pairs during the readout of a coherence grating stored in a cold atomic ensemble. The pulse shapes and the split of the retrieved energy between the two pulses are studied as a function of the relative intensities of the two reading fields, and a minimum is observed for the total retrieved energy. We introduce a simplified analytical theory for the process, considering a three-level atomic system, which explains all the most striking experimental features.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2010