skip to main content

Title: A high-order harmonic generation apparatus for time- and angle-resolved photoelectron spectroscopy

We present a table top setup for time- and angle-resolved photoelectron spectroscopy to investigate band structure dynamics of correlated materials driven far from equilibrium by femtosecond laser pulse excitation. With the electron-phonon equilibration time being in the order of 1–2 ps it is necessary to achieve sub-picosecond time resolution. Few techniques provide both the necessary time and energy resolution to map non-equilibrium states of the band structure. Laser-driven high-order harmonic generation is such a technique. In our experiment, a grating monochromator delivers tunable photon energies up to 40 eV. A photon energy bandwidth of 150 meV and a pulse duration of 100 fs FWHM allow us to cover the k-space necessary to map valence bands at different k{sub z} and detect outer core states.
Authors:
; ; ;  [1] ;  [1] ;  [2] ;  [3] ; ;  [4]
  1. Freie Universität Berlin, Arnimallee 14, 14195 Berlin (Germany)
  2. (Germany)
  3. Max-Born-Institut, Max-Born-Str. 2a, 12489 Berlin (Germany)
  4. Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin (Germany)
Publication Date:
OSTI Identifier:
22220564
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 84; Journal Issue: 7; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ELECTRONS; ENERGY RESOLUTION; EQUILIBRIUM; EQUIPMENT; EV RANGE; EXCITATION; HARMONIC GENERATION; MEV RANGE; MONOCHROMATORS; PHOTOELECTRON SPECTROSCOPY; PHOTONS; TIME RESOLUTION