Electron emission from metal surfaces by ultra-short pulses

M.N. FARAGGI; I. ALDAZABAL; M. S. GRAVIELLE; A. ARNAU; V.M. SILKIN

Kansas, EEUU

Workshop; Attosecond Physics Workshop; 2009

International Committee of Attosecond Physics Workshop

We study electron emission spectra produced by the grazing incidence of ultra-short laser pulses on metal surfaces. To describe this process we introduce a distorted-wave approach, based on a simple description of the solid, which includes the main features of the process, taking into account the contribution of the induced potential. The method is applied to evaluate photoemission from the valence band of Al(111), consider ing different frequencies and durations of the pulse. The results so obtained are contrasted with the numerical solution to the time-dependent Schrödinger equation (TDSE), finding a very good agreement through the whole energetic range.