Realization of a distributed Bragg reflector for propagating guided matter waves

Details Realization of a distributed Bragg reflector for propagating guided matter waves Realization of a distributed Bragg reflector for propagating guided matter waves

2011-07-27

arxiv.org/abs/1107.5416v1

Phys. Rev. Lett. 107, 230401 (2011)

Physics

Condensed Matter

Quantum Gases

4 pages, 5 figures + supplementary material (2 pages, 2 figures)

Scientific paper

10.1103/PhysRevLett.107.230401

We report on the experimental realization of a Bragg reflector for guided matter waves. A Bose-Einstein condensate with controlled velocity distribution impinges onto an attractive optical lattice of finite length and directly probes its band structure. We study the dynamics of the scattering by this potential and compare the results with simple one-dimensional models. We emphasize the importance of taking into account the gaussian envelope of the optical lattice which gives rise to Bragg cavity effects. Our results are a further step towards integrated atom optics setups for quasi-cw matter waves.

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