Seeing atoms and electrons in space and time

The fundamental reason behind almost any light-matter interaction are atomic and electronic motions in space and time. In order to provide a movie-like access to such dynamics, we unify electron microscopy with attosecond and femtosecond laser technology. In this way, we combine the awesome spatial resolution of modern electron beams with the spectacular time resolution that is offered by the cycle period of light [1-2]. Selected results will be reported on the electric fields within metamaterials [2-3], the Einstein-de-Haas effect on atomic dimensions [4], the reaction path of phase transitions [5] and the formation of free-electron qubit states [6]. Many breakthroughs in science and technology have been achieved by novel imaging techniques, and we will discuss how our ultrafast electron microscopy may contribute.

[1] D. Nabben, et. al. Nature 619, 63-67 (2023)
[2] C. Kealhofer, et al., Science 352, 429 (2016)
[3] A. Ryabov and P. Baum, Science 353, 374 (2016)
[4] S. R. Tauchert, et al., Nature 602, 73 (2022)
[5] P. Baum, et al., Science 318, 788 (2007)
[6] M. Tsarev, et al., Phys. Rev. Res. 3, 043033 (2021)

If you would like to meet with Peter during his visit, please contact Michael Fechner.