Effects on Photoemission of the Spatially Varying Photon Field at a Metal Surface
作者： Harry J. Levinson , E. W. Plummer , Peter J. Feibelman
DOI: 10.1103/PHYSREVLETT.43.952
关键词: Fermi level 、 Ionization 、 Jellium 、 Photoexcitation 、 Physics 、 Secondary emission 、 Photon 、 Atomic physics 、 Elementary particle 、 Photoionization
摘要: Enhancement of photoionization cross sections due to spatially varying photon fields at a metal surface has been observed in the normal-emission for state and Fermi level A1(100) energies between 9 eV 23 eV. The data Fermi-level photoexcitation are excellent agreement with theoretical results jellium. Below $\ensuremath{\hbar}{\ensuremath{\omega}}_{p}$, predominant contribution matrix element comes from fields, which provide momentum required photoexcitation.
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