Role of elastic scattering in high-order above threshold ionization
Chen Zhang-Jin†, Ye Jian-Mian, Xu Yang-Bing
       
Comparison of the angle-integrated photoelectron energy spectra of the QRS model including the focal volume averaging and the experimental measurements of Paulus et al .[ 28 ] for single ionizations of (a) Ne, (b) Ar, (c) Kr, and (d) Xe in a 40-fs pulse with a wavelength of 630 nm. The peak intensity claimed in experiment for all atoms is 2.0×1014 W/cm2 while for QRS the simulated results at two different peak intensities for each atom are plotted. The QRS results are shown for energies above 3 U p–4 U p. The QRS spectra are relative and normalized to the experimental data at high energies. See text.