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arXiv · 1409.5549

Ultrafast Rabi oscillation of a Gaussian atom ensemble

Han-gyeol Lee·Hyosub Kim·Jaewook Ahn
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Abstract

We investigate Rabi oscillation of an atom ensemble in Gaussian spatial distribution. By using the ultrafast laser interaction with the cold atomic rubidium vapor spatially confined in a magneto-optical trap, the oscillatory behavior of the atom excitation is probed as a function of the laser pulse power. Theoretical model calculation predicts that the oscillation peaks of the ensemble-atom Rabi flopping fall on the simple Rabi oscillation curve of a single atom and the experimental result shows good agreement with the prediction. We also test the the three-pulse composite interaction $R_x(π/2)R_y(π)R_x(π/2)$ to develop a robust method to achieve a higher fidelity population inversion of the atom ensemble.

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Han-gyeol Lee, Hyosub Kim, Jaewook Ahn. 2014-09-19. Ultrafast Rabi oscillation of a Gaussian atom ensemble. https://doi.org/10.1364/ol.40.000510

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