Abstract.
The non-linear photoelectron spectra obtained by short laser pulses from a Ag(100) surface show a high-energy electron emission due to an athermal electron distribution created by the laser pulse. By comparing the photoemission at normal and non-normal emission geometry it is possible to evidence the independence of the hot electron photoemission on the parallel momentum and on different final-state configurations. A photoemission correlation measurement evidences that non-photoelectric effects, as tunneling or thermally assisted photoemission, do not contribute to the electron yield. Various theoretical models are discussed on the basis of the present data.
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Giannetti, C., Ferrini, G., Pagliara, S. et al. On the role of athermal electrons in non-linear photoemission from Ag(100). Eur. Phys. J. B 53, 121–125 (2006). https://doi.org/10.1140/epjb/e2006-00337-0
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DOI: https://doi.org/10.1140/epjb/e2006-00337-0