Access to the full three-dimensional Brillouin zone with time resolution, using a new tool for pump-probe angle-resolved photoemission spectroscopy

Paulina Majchrzak; Yu Zhang; Andrii Kuibarov; Richard Chapman; Adam Wyatt; Emma Springate; Sergey Borisenko; Bernd Büchner; Philip Hofmann; Charlotte E Sanders

doi:10.1063/5.0179752

Access to the full three-dimensional Brillouin zone with time resolution, using a new tool for pump-probe angle-resolved photoemission spectroscopy

Rev Sci Instrum. 2024 Jun 1;95(6):063001. doi: 10.1063/5.0179752.

Affiliations

¹ Department of Physics and Astronomy, Interdisciplinary Nanoscience Center, Aarhus University, 8000 Aarhus C, Denmark.
² Central Laser Facility, STFC Rutherford Appleton Laboratory, Research Complex at Harwell, Harwell OX11 0QX, United Kingdom.
³ Leibniz IFW Dresden, Helmholtzstr. 20, 01069 Dresden, Germany.

PMID: 38829212
DOI: 10.1063/5.0179752

Abstract

Here, we report the first time- and angle-resolved photoemission spectroscopy (TR-ARPES) with the new Fermiologics "FeSuMa" analyzer. The new experimental setup has been commissioned at the Artemis laboratory of the UK Central Laser Facility. We explain here some of the advantages of the FeSuMa for TR-ARPES and discuss how its capabilities relate to those of hemispherical analyzers and momentum microscopes. We have integrated the FeSuMa into an optimized pump-probe beamline that permits photon-energy (i.e., kz)-dependent scanning, using probe energies generated from high harmonics in a gas jet. The advantages of using the FeSuMa in this situation include the possibility of taking advantage of its "fisheye" mode of operation.