Regensburg 2022 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
O: Fachverband Oberflächenphysik
O 68: Focus Session: Time-Resolved Momentum Microscopy
O 68.10: Talk
Thursday, September 8, 2022, 18:15–18:30, H3
FEL-based time-of-flight momentum microscopy: 3 time-resolved photoemission modalities in 1 experiment — •D. Kutnyakhov1, R.P. Xian2, M. Dendzik2, M. Heber1, F. Pressacco3, S.Y. Agustsson4, L. Wenthaus1, H. Meyer3, S. Gieschen3, K. Bühlman5, S. Däster5, R. Gort5, D. Curcio6, K. Volckaert6, M. Bianchi6, Ch. Sanders6, J.A. Miwa6, S. Ulstrup6, A. Oelsner7, C. Tusche8,9, Y.-J. Chen8,9, D. Vasilyev4, K. Medjanik4, G. Brenner1, S. Dziarzhytski1, S. Dong2, J. Hauer2, L. Rettig2, J. Demsar4, H.-J. Elmers4, Ph. Hofmann6, R. Ernstorfer2, G. Schönhense4, Y. Acremann5, and K. Rossnagel1,10 — 1DESY, Hamburg — 2FHI Berlin — 3CFEL, Univ. Hamburg — 4Univ. Mainz — 5ETH Zürich — 6Univ. Aarhus — 7Surface Concept GmbH, Mainz — 8FZ Jülich GmbH — 9Univ. Duisburg-Essen — 10CAU Kiel
Time-resolved photoemission spectroscopy with ultrashort pump and probe photon pulses is an emerging technique with wide application potential. The ultimate combination of valence-band and core-level spectroscopy with photoelectron diffraction in a single experiment for electronic, chemical, and structural dynamics analysis specifically requires tunable monochromatic soft X-ray pulses at a high repetition rate as well as highly efficient single-shot electron detectors with increased multi-hit capabilities. We have realized such a 3-in-1 ultrafast photoemission experiment at FLASH/PG2, DESY merging free-electron laser capabilities with a multi-dimensional recording scheme.