Prof. Dr. Peter Baum (Universität Konstanz)
Department of Physics
Universität Konstanz
gives a talk on the subject:
Seeing atoms and electrons in space and time
All processes in materials, nanostructures and devices are on a fundamental level defined by electronic and atomic motion from initial to final conformations. Our approach for a direct, real-space visualization is pump-probe electron microscopy and diffraction with single-electron wavepackets under the control of laser light [1]. The resulting few-femtosecond and attosecond time resolution allows to see almost any light-matter interaction or structural dynamics on fundamental scales in space and time [2-5]. We report selected results on strongly correlated materials [2], electronic circuitry [3], rotational phonons [4], free-electron quantum phenomena [5] and attosecond dynamics in nanomaterials [6].
[1] C. Kealhofer, W. Schneider, D. Ehberger, A. Ryabov, F. Krausz, P. Baum, Science 352, 429 (2016).
[2] P. Baum, D.-S. Yang, A. H. Zewail, Science 318, 788 (2007).
[3] A. Ryabov and P. Baum, Science 353, 374 (2016).
[4] S. R. Tauchert, M. Volkov, D. Ehberger, D. Kazenwadel, M. Evers, H. Lange, A. Donges, A. Book, W. Kreuzpaintner, U. Nowak, P. Baum, Nature 602, 73 (2022).
[5] Y. Fang, J. Kuttruff, D. Nabben, P. Baum, Science 385, 183-187 (2024).
[6] D. Nabben, J. Kuttruff, L. Stolz, A. Ryabov, P. Baum, Nature 619, 63 (2023).
Interested parties are cordially invited.
Prof. Dr. Lochbrunner