Submicron Positioning of Single Atoms in a Microcavity

Stefan Nußmann, Markus Hijlkema, Bernhard Weber, Felix Rohde, Gerhard Rempe, and Axel Kuhn
Phys. Rev. Lett. 95, 173602 – Published 19 October 2005

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.

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  • Received 10 June 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.173602

©2005 American Physical Society

Authors & Affiliations

Stefan Nußmann, Markus Hijlkema, Bernhard Weber, Felix Rohde*, Gerhard Rempe, and Axel Kuhn

  • Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, D-85748 Garching, Germany

  • *Current address: ICFO Institut de Ciènces Fotòniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain.

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Issue

Vol. 95, Iss. 17 — 21 October 2005

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