Vacuum space charge effect in laser-based solid-state photoemission spectroscopy

J. Graf, S. Hellmann, C. Jozwiak, C. L. Smallwood, Z. Hussain, R. A. Kaindl, L. Kipp, K. Rossnagel, A. Lanzara

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

We report a systematic measurement of the space charge effect observed in the few-picosecond 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 N -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.

Original languageEnglish (US)
Article number014912
JournalJournal of Applied Physics
Volume107
Issue number1
DOIs
StatePublished - 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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