2009/12/30 by Diego G. Arbo, Kenichi L. Ishikawa, Klaus Schiessl +2 · 1 citation
Physics and Astronomy · #physics.atom-ph #physics.gen-ph
paper · pdf · doi:10.1103/physreva.81.021403
10 pages, 5 figures in preprint format
arxiv created 2009/12/30 · arxiv updated 2013/05/29
Within a semiclassical description of above-threshold ionization (ATI) we identify the interplay between intracycle and intercycle interferences. The former is imprinted as a modulation envelope on the discrete multiphoton peaks formed by the latter. This allows to unravel the complex interference pattern observed for the full solution of the time-dependent Schrödinger equation (TDSE) in terms of diffraction at a grating in the time domain. These modulations can be clearly seen in the dependence of the ATI spectra on the laser wavelength. Shifts in energy modulation result from the effect of the long Coulomb tail of the atomic potential.