Energy-resolved attosecond interferometric photoemission from Ag(111) and Au(111) surfaces
作者： M. J. Ambrosio , U. Thumm
DOI: 10.1103/PHYSREVA.97.043431
关键词:
摘要: Photoelectron emission from solid surfaces induced by attosecond pulse trains into the electric field of delayed phase-coherent infrared (IR) pulses allows surface-specific observation energy-resolved electronic phase accumulations and photoemission delays. We quantum-mechanically modeled interferometric spectra (111) Au Ag, including background contributions secondary electrons direct IR pulse, adjusted parameters our model to photoelectron recently measured at a synchrotron light source Roth et al. [J. Electron Spectrosc. 224, 84 (2018)]. Our calculated shifts are in fair agreement with experimental data Locher [Optica 2, 405 (2015)]. model's not reproducing energy-dependent oscillations Ag(111) phases may be interpreted as evidence for subtle band-structure effects on final-state photoelectron-surface interaction accounted simulation.
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