Vacuum Space Charge Effect in Laser-Based Solid-State Photoemission Spectroscopy

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 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.

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Document Details

Document Type
Technical Report
Publication Date
Jun 03, 2010
Accession Number
ADA523176

Entities

People

  • A. Lanzara
  • C. Jozwiak
  • C. Smallwodd
  • Jonathan Graf
  • Kai Rossnagel
  • L. Kipp
  • R. A. Kaindl
  • S. Hellmann
  • Z. Hassain

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Electron Emission
  • Electron Energy
  • Electrons
  • Emission
  • Fermi Levels
  • Kinetic Energy
  • Laser Beams
  • Laser Pulses
  • Lasers
  • Light Sources
  • Materials Science
  • Measurement
  • Optical Materials
  • Photoelectric Emission
  • Simulations
  • Space Charge
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Materials Science and Engineering.
  • Spectroscopy.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Space