Time & Angular Resolved Photo Emission Spectrometer (TR-ARPES)

Pump-probe photoemission endstation for light-induced electron dynamics and nonequilibrium electronic phases.

Published parameters • Driving laser: 50 W ytterbium laser • Probe photon energy: 6 eV • Pump photon energy: 0.15-0.82 eV, from a three-stage OPA • Overall temporal resolution: 175 fs • Sample temperature: 10-1000 K • Sample positioning: Five-axis manipulator • Temperature equipment: Closed-cycle cryostat and electron-beam heater • Characterization: Low-energy electron diffraction instrument • Electron analyzer: SPECS ASTRAIOS hemispherical analyzer • Analyzer acceptance: ±30°; deflector-based Fermi-surface mapping

The source identifies a 50 W ytterbium driver. Its relationship to LS4 requires confirmation. The analyzer and supporting instruments are components of this endstation.

Source: https://alls.inrs.ca/en/beamlines-endstations