Simulation of attosecond streaking of electrons emitted from a tungsten surface
Abstract
First time-resolved photoemission experiments employing attosecond streaking of electrons emitted by an XUV pump pulse and probed by a few-cycle NIR pulse found a time delay of about 100 attoseconds between photoelectrons from the conduction band and those from the 4f core level of tungsten. We present a microscopic simulation of the emission time and energy spectra employing a classical transport theory. Emission spectra and streaking images are well reproduced. Different contributions to the delayed emission of core electrons are identified: larger emission depth, slowing down by inelastic scattering processes, and possibly, energy dependent deviations from the free-electron dispersion. We find delay times near the lower bound of the experimental data.
Keywords
Cite
@article{arxiv.0904.0579,
title = {Simulation of attosecond streaking of electrons emitted from a tungsten surface},
author = {C. Lemell and B. Solleder and K. Tokesi and J. Burgdoerfer},
journal= {arXiv preprint arXiv:0904.0579},
year = {2015}
}