A Guided Quasicontinuous Atom Laser

William Guerin (1) , Jean-Félix Riou (1) , John P. Gaebler (1) , Vincent Josse (1) , Philippe Bouyer (2) , Alain Aspect (2)

1 LCFIO - Laboratoire Charles Fabry de l'Institut d'Optique
2 laboratoire Charles Fabry de l'Institut d'Optique / Optique atomique

We report the first realization of a guided quasicontinuous atom laser by rf outcoupling a BEC from a hybrid optomagnetic trap into a horizontal atomic waveguide. This configuration allows us to cancel the acceleration due to gravity and thus to keep the de Broglie wavelength constant at a value of about 0.5 µm during 0.1 s of propagation. We also show that our configuration, equivalent to pigtailing an optical fiber to a (photon) semiconductor laser, ensures an intrinsically good transverse mode matching.

Domaines: Autre [cond-mat.other]; Physique Atomique [physics.atom-ph]

William Guerin, Jean-Félix Riou, John P. Gaebler, Vincent Josse, Philippe Bouyer, et al.. A Guided Quasicontinuous Atom Laser. 2006. ⟨hal-00085308v1⟩