Interaction-Enhanced Imaging of Rydberg P states
arXiv:1602.04143 · doi:10.1140/epjst/e2015-50339-8
Abstract
The Interaction Enhanced Imaging technique allows to detect the spatial distribution of strongly interacting impurities embedded within a gas of background atoms used as a contrast medium. Here we present a detailed study of this technique, applied to detect Rydberg states. We experimentally realize fast and efficient three-photon excitation of states, optimized according to the results of a theoretical effective two-level model. Few Rydberg -state atoms, prepared in a small cloud with dimensions comparable to the blockade radius, are detected with a good sensitivity by averaging over 50 shots. The main aspects of the technique are described with a hard-sphere model, finding good agreement with experimental data. This work paves the way to a non-destructive optical detection of single Rydberg atoms with high spatial and temporal resolution.
arXiv comment28 pages, 12 figures, accepted for publication in EPJST Topical issue on Cooperativity and Control in Highly Excited Rydberg Ensembles, Achievements of the European Marie Curie ITN COHERENCE
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