Figure 2
From: Route to optimal generation of soft X-ray high harmonics with synthesized two-color laser pulses
Comparison of maximal harmonic yields for optimized waveforms using three atomic targets.
(a) Single-atom and (c) macroscopic HHG spectra calculated by using QRS model and (b) returning electron wave packet calculated by SFA. The maximum returning electron energy is set at 350 eV. The fundamental wavelengths in the optimized waveforms are 2831, 1625 and 1350 nm for Ar, Ne and He, respectively. (d) Photorecombination cross sections (PRCSs) over a broad photon energy region are shown for the three targets.
