Figure 8
Calculated photoelectron spectrum for first-harmonic intensity of 5 × 1011 W/cm2, third-harmonic intensity of 106 W/cm2, pulse duration of 33.2 fs, and relative phase ϕ between the fundamental and third harmonic of 0, π/2 or π rad. Photon energies: fundamental, 21.22 eV; third harmonic, 63.65 eV.
