Nuclear Wavepacket Dynamics of Alkali Adsorbates on Metal Surfaces Studied by Time-Resolved Second Harmonic Generation

Figure 4

Excitation photon energy dependence of the initial amplitude of the coherent vibration of the S mode of K/Cu(111) (filled circles). The potassium coverage was 0.63 ML. Numerical estimation of the number of photogenerated carriers within the Cu substrate [10] (solid curve).