Quasiperiodic Atom Optics, Focusing, and Wave packet Rephasing
  We propose a laser field configuration which acts as a quasiperiodic atom optical diffraction grating. Analytical and computational results for the atomic center-of-mass wavefunction after the grating reveal a quasiperiodic density pattern, a semiclassical focusing effect, and a quasiperiodic self-imaging of the atomic wavefunction analogous to a Talbot effect. 
J. L. Cohen, B. Dubetsky, and P. R. Berman (University of Michigan)