Dresden 2011 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
A: Fachverband Atomphysik
A 13: Poster II
A 13.7: Poster
Dienstag, 15. März 2011, 18:00–20:00, P1
Matter wave guiding through a photonic bandgap fiber — •Hannes Duncker, André Wenzlawski, Lars Wacker, Patrick Windpassinger, and Klaus Sengstock — Institut für Laser-Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg
In this contribution, we present a project where we intend to study light-matter interaction in an extremely one-dimensional geometry. Ultracold atoms are loaded into a hollow core photonic bandgap (HCPBG) fiber. As a first step, we have been able to demonstrate guiding of cold, slow atoms through an 88 mm long piece of fiber [1]. The guiding potential is created by a far-off resonance dipole trap which propagates in the hollow core of the HCPBG fiber. By imaging the guided atoms’ fluorescence signal, we observe a peak atomic flux of 1.2 × 105 atoms/s. Combined with new cooling techniques, single mode operation of the waveguide should be achievable which would pave the way towards guided matter wave interferometry. Furthermore, the tight confinement allows for strong light-atom coupling in a well defined optical potential over macroscopic distances.
[1] S. Vorrath et al, NJP (in press, 2010), Preprint arXiv:1010.0101