DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2011 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

A: Fachverband Atomphysik

A 29: Ultracold Atoms: Trapping and Cooling 2 (with Q)

A 29.8: Vortrag

Freitag, 18. März 2011, 12:15–12:30, HSZ 02

A hexapole-compensated magneto-optical trap on a mesoscopic atom chip — •Stefan Jöllenbeck1, Jan Mahnke1, Richard Randoll1, Manuela Hanke1, Ilka Geisel1, Wolfgang Ertmer1, Jan Arlt2, and Carsten Klempt11Institut für Quantenoptik, Leibniz Universität Hannover — 2Department of Physics and Astronomy, Aarhus University

We realized a magneto-optical trap (MOT) on a mesoscopic chip structure which will be used as a starting point for experiments to trap and transport atoms in a magnetic conveyor belt.

Our MOT setup consists of nine millimeter-scale wires which generate a quadrupole field with minimized distortions. The wires are placed outside of our vacuum system above a steel foil which forms one wall of our vacuum chamber. A gold coating on the vacuum side of this foil allows for the standard mirror MOT configuration. Together with a pre-cooled beam from a 2D+-MOT, we achieve an initial loading rate of 8.4× 1010 atoms/s and a final number of 8.7× 109 captured atoms within 300 ms.

Since the MOT can be operated by only local magnetic fields, the wire structure will support a serialized production of Bose-Einstein condensates in the magnetic conveyor belt.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2011 > Dresden