A Bose-Einstein condensate bouncing off a rough mirror
  We present experimental results and theoretical analysis of the diffuse reflection of a Bose-Einstein condensate from a rough mirror. The mirror is produced by a blue-detuned evanescent wave supported by a dielectric substrate. The results are carefully analysed via a comparison with a numerical simulation. The scattering is clearly anisotropic, more pronounced in the direction of the evanescent wave surface propagation, as predicted theoretically. 
H\'el\`ene Perrin (LPL), Yves Colombe (LPL), Brigitte Mercier (LPL),   Vincent Lorent (LPL), Carsten Henkel