Vacuum space charge effect in laser-based solid-state photoemission spectroscopy
Materials Science
2010-01-13 v1 Other Condensed Matter
Abstract
We report a systematic measurement of the space charge effect observed in the few-ps laser pulse regime in laser-based solid-state photoemission spectroscopy experiments. The broadening and the shift of a gold Fermi edge as a function of spot size, laser power, and emission angle are characterized for pulse lengths of 6 ps and 6 eV photon energy. The results are used as a benchmark for an -body numerical simulation and are compared to different regimes used in photoemission spectroscopy. These results provide an important reference for the design of time- and angle-resolved photoemission spectroscopy setups and next-generation light sources.
Keywords
Cite
@article{arxiv.1001.1989,
title = {Vacuum space charge effect in laser-based solid-state photoemission spectroscopy},
author = {J. Graf and S. Hellmann and C. Jozwiak and C. L. Smallwood and Z. Hussain and R. A. Kaindl and L. Kipp and K. Rossnagel and A. Lanzara},
journal= {arXiv preprint arXiv:1001.1989},
year = {2010}
}