A reflection grating for atoms at normal incidence A. Landragin, L. Cognet, G. Zs. K. Horvath, C. I. Westbrook, N. Westbrook and A. Aspect Europhys. Lett., 39 5 (1997) 485-490 Published online: 01 September 2002 DOI: 10.1209/epl/i1997-00381-x