title: Submicron positioning of single atoms in a microcavity.
abstract: The coupling of individual atoms to a high-finesse optical cavity is precisely controlled and adjusted using a standing-wave dipole-force trap, a challenge for strong atom-cavity coupling. Ultracold Rubidium atoms are first loaded into potential minima of the dipole trap in the center of the cavity. Then we use the trap as a conveyor belt that we set into motion perpendicular to the cavity axis. This allows us to repetitively move atoms out of and back into the cavity mode with a repositioning precision of 135 nm. This makes it possible to either selectively address one atom of a string of atoms by the cavity, or to simultaneously couple two precisely separated atoms to a higher mode of the cavity.
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, D-85748 Garching, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Nussmann
authors.forename: Markus
authors.initials: M
authors.lastname: Hijlkema
authors.forename: Bernhard
authors.initials: B
authors.lastname: Weber
authors.forename: Felix
authors.initials: F
authors.lastname: Rohde
authors.forename: Gerhard
authors.initials: G
authors.lastname: Rempe
authors.forename: Axel
authors.initials: A
authors.lastname: Kuhn