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Optics Communications

Single slow atoms from an atomic fountain observed in a high-finesse optical cavity

P. Münstermann, Thomas H. Fischer, Pepijn W. H. Pinkse, Gerhard Rempe

Published Jan 1, 1999• 97 citations
Publisher
DOI
10.1016/s0030-4018(98)00596-3

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An experiment is described where slow laser-cooled atoms are injected into a high-finesse optical cavity. Single atoms are trapped in the cavity light field and observed by measuring the light intensity transmitted through the cavity. Feedback-based methods are realized to extend the time the atom stays in the cavity. The influence of atoms on the cavity transmission and the light force on atoms in a cavity are also analyzed theoretically. This allows to study the motion of an atom in the cavity and to interpret the experimental transmission signals. The current limitations for the storage time are identified and a strategy to overcome them is suggested. Apart from that, a method is proposed which allows a two-dimensional position measurement of atoms in the cavity.