Pfau, TilmanKurtsiefer, ChristianAdams, Charles S.Sigel, MartinMlynek, Jürgen2009-10-192016-03-312009-10-192016-03-311993318082950http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-47355http://elib.uni-stuttgart.de/handle/11682/7083http://dx.doi.org/10.18419/opus-7066We report an experimental demonstration of diffraction of He* atoms from a magneto-optical grating. The grating was produced by the interaction of three-level atoms with a light field of spatially varying polarization and a magnetic field. For a light shift matched to the Zeeman shift, a two-peaked diffraction pattern was observed, corresponding to a momentum splitting of 42ħk. The effect of changing the polarizations of the light field was investigated. The diffraction from the magneto-optical grating is compared directly with the diffraction of two-level atoms from a standing light wave and it is shown, that the magneto-optical interaction leads to more efficient coupling into high order momentum states.eninfo:eu-repo/semantics/openAccessAtomoptik , Atombestrahlung530article2010-10-04