| Literature DB >> 15698325 |
Francesco Banfi1, Claudio Giannetti, Gabriele Ferrini, Gianluca Galimberti, Stefania Pagliara, Daniele Fausti, Fulvio Parmigiani.
Abstract
Nonlinear photoemission from a silver single crystal is investigated by femtosecond laser pulses in a perturbative regime. A clear observation of above-threshold photoemission in solids is reported for the first time. The ratio between the three-photon above-threshold and the two-photon Fermi edges is found to be 10(-4). This value constitutes the only available benchmark for theories aimed at understanding the mechanism responsible for above-threshold photoemission in solids.Year: 2005 PMID： 15698325 DOI： 10.1103/PhysRevLett.94.037601
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161