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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 66: Focus Session: Big Data in Aquisition in ARPES (joint session O/CPP)
CPP 66.9: Vortrag
Mittwoch, 18. März 2020, 13:00–13:15, REC C 213
Processing workflow for band structure reconstruction from multidimensional photoemission data — R. Patrick Xian1, Vincent Stimper2, Shuo Dong1, Maciej Dendzik1, Samuel Beulieu1, Bernhard Schölkopf2, Martin Wolf1, Stefan Bauer2, Laurenz Rettig1, and •Ralph Ernstorfer1 — 1Fritz Haber Institute of the Max Planck Society, Berlin, Germany — 2Max Planck Institute for Intelligent Systems, Tübingen, Germany
Recent advances in photoelectron detectors and light sources result in an increase of size and dimensionality of photoemission data, leading to new challenges in data preprocessing and analysis: the large number of adjustable parameters of modern electron optics require experiment-specific calibration and artifact correction [1]; visual inspection of multidimensional ARPES data may be hampered by the varying levels of contrast [2]. We discuss a workflow for conditioning volumetric three- and four-dimensional momentum microscopy data for band structure mapping from single-electron events to calibrated, reusable data [3].
[1] Xian et al., Ultramicroscopy 202, 133 (2019).
[2] Stimper et al., IEEE Access 7, 165437 (2019).
[3] Xian et al., arXiv 1909.07714.