Multiphoton electron emission from Cu and W: An angle-resolved study
- Solid State Physics Laboratory, Groningen University, Nijenborgh 4, 9747 AG, Groningen (The Netherlands)
- Materials Division, Centro Informazioni Studi Esperienze Tecnologie Innovative S.p.A., P.O. Box 12081, I-20134 Milan (Italy)
- Department of Physics and European Laboratory for Nonlinear Spectroscopy, University of Florence, Largo Enrico Fermi 2, I-50125 Florence (Italy)
- Istitoto Nazionale per la Fisica della Materia and Department of Physics, Polytechnic of Milan, Piazza Leonardo da Vinci 32, I-20134 Milan (Italy)
The experimental results of multiphoton electron emission from Cu and W induced by 2-eV 100-fs laser pulses with {ital s} and {ital p} polarizations at incidence angles between 0{degree} and 85{degree} and different intensities are reported. The data show a third-order nonlinear photoemission process for Cu and a fourth-order behavior for W. For both metals the electron emission is higher for the polarization in the incidence plane, with a maximum value at the pseudo-Brewster angle, while the electron yield as a function of the incidence angle exhibits an unambiguous dependence on the bulk absorption coefficient and it can be accounted for on the basis of the Fresnel equations. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 383228
- Journal Information:
- Physical Review, B: Condensed Matter, Vol. 54, Issue 9; Other Information: PBD: Sep 1996
- Country of Publication:
- United States
- Language:
- English
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