Figure 5
(a) Lineouts of Fig. 4 for 11 equidistant ellipticities from linear to circular polarization. From this plot it is obvious that the cut-off decreases with increasing ellipticity and that it occurs for earlier ionization times. It is also clear that the initial timing necessary to produce a specific harmonic changes with the ellipticity. (b) The same as (a), but plotted as a function of excursion time te = tr − ti instead.
