A quasi-monomode guided atom laser from an all-optical Bose-Einstein condensate

A. Couvert; M. Jeppesen; T. Kawalec; G. Reinaudi; R. Mathevet; D. Guéry-Odelin

doi:10.1209/0295-5075/83/50001

A quasi-monomode guided atom laser from an all-optical Bose-Einstein condensate

A. Couvert^*, M. Jeppesen, T. Kawalec, G. Reinaudi, R. Mathevet, D. Guéry-Odelin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

65 Citations (Scopus)

Abstract

We report the achievement of an optically guided and quasi-monomode atom laser, in all spin projection states (m_F=-1, 0 and +1) of F=1 in rubidium 87. The atom laser source is a Bose-Einstein condensate (BEC) in a crossed dipole trap, purified to any one spin projection state by a spin-distillation process applied during the evaporation to BEC. The atom laser is outcoupled by an inhomogenous magnetic field, applied along the waveguide axis. The mean excitation number in the transverse modes is 〈n〉=0. 65±0.05 for m_F=0 and 〈n〉=0.8±0.3 for the low-field seeker m_F=-1. Using a simple thermodynamical model, we infer from our data the population in each excited mode.

Original language	English
Article number	50001
Journal	Europhysics Letters
Volume	83
Issue number	5
DOIs	https://doi.org/10.1209/0295-5075/83/50001
Publication status	Published - 1 Sept 2008

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title = "A quasi-monomode guided atom laser from an all-optical Bose-Einstein condensate",

abstract = "We report the achievement of an optically guided and quasi-monomode atom laser, in all spin projection states (mF=-1, 0 and +1) of F=1 in rubidium 87. The atom laser source is a Bose-Einstein condensate (BEC) in a crossed dipole trap, purified to any one spin projection state by a spin-distillation process applied during the evaporation to BEC. The atom laser is outcoupled by an inhomogenous magnetic field, applied along the waveguide axis. The mean excitation number in the transverse modes is 〈n〉=0. 65±0.05 for mF=0 and 〈n〉=0.8±0.3 for the low-field seeker mF=-1. Using a simple thermodynamical model, we infer from our data the population in each excited mode.",

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T1 - A quasi-monomode guided atom laser from an all-optical Bose-Einstein condensate

AU - Couvert, A.

AU - Jeppesen, M.

AU - Kawalec, T.

AU - Reinaudi, G.

AU - Mathevet, R.

AU - Guéry-Odelin, D.

PY - 2008/9/1

Y1 - 2008/9/1

N2 - We report the achievement of an optically guided and quasi-monomode atom laser, in all spin projection states (mF=-1, 0 and +1) of F=1 in rubidium 87. The atom laser source is a Bose-Einstein condensate (BEC) in a crossed dipole trap, purified to any one spin projection state by a spin-distillation process applied during the evaporation to BEC. The atom laser is outcoupled by an inhomogenous magnetic field, applied along the waveguide axis. The mean excitation number in the transverse modes is 〈n〉=0. 65±0.05 for mF=0 and 〈n〉=0.8±0.3 for the low-field seeker mF=-1. Using a simple thermodynamical model, we infer from our data the population in each excited mode.

AB - We report the achievement of an optically guided and quasi-monomode atom laser, in all spin projection states (mF=-1, 0 and +1) of F=1 in rubidium 87. The atom laser source is a Bose-Einstein condensate (BEC) in a crossed dipole trap, purified to any one spin projection state by a spin-distillation process applied during the evaporation to BEC. The atom laser is outcoupled by an inhomogenous magnetic field, applied along the waveguide axis. The mean excitation number in the transverse modes is 〈n〉=0. 65±0.05 for mF=0 and 〈n〉=0.8±0.3 for the low-field seeker mF=-1. Using a simple thermodynamical model, we infer from our data the population in each excited mode.

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VL - 83

JO - Europhysics Letters

JF - Europhysics Letters

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A quasi-monomode guided atom laser from an all-optical Bose-Einstein condensate

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