Setting the photoelectron clock through molecular alignment

Andrea Trabattoni, Joss Wiese, Umberto Giovannini, Jean-François Olivieri, Terry Mullins, Jolijn Onvlee, Sang-Kil Son, Biagio Frusteri, Angel Rubio (), Sebastian Trippel and Jochen Küpper ()
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Andrea Trabattoni: Deutsches Elektronen-Synchrotron DESY
Joss Wiese: Deutsches Elektronen-Synchrotron DESY
Umberto Giovannini: Max Planck Institute for the Structure and Dynamics of Matter and Center for Free-Electron Laser Science
Jean-François Olivieri: Deutsches Elektronen-Synchrotron DESY
Terry Mullins: Deutsches Elektronen-Synchrotron DESY
Jolijn Onvlee: Deutsches Elektronen-Synchrotron DESY
Sang-Kil Son: Deutsches Elektronen-Synchrotron DESY
Biagio Frusteri: Universitá degli Studi di Palermo
Angel Rubio: Max Planck Institute for the Structure and Dynamics of Matter and Center for Free-Electron Laser Science
Sebastian Trippel: Deutsches Elektronen-Synchrotron DESY
Jochen Küpper: Deutsches Elektronen-Synchrotron DESY

Nature Communications, 2020, vol. 11, issue 1, 1-7

Abstract: Abstract The interaction of strong laser fields with matter intrinsically provides a powerful tool for imaging transient dynamics with an extremely high spatiotemporal resolution. Here, we study strong-field ionisation of laser-aligned molecules, and show a full real-time picture of the photoelectron dynamics in the combined action of the laser field and the molecular interaction. We demonstrate that the molecule has a dramatic impact on the overall strong-field dynamics: it sets the clock for the emission of electrons with a given rescattering kinetic energy. This result represents a benchmark for the seminal statements of molecular-frame strong-field physics and has strong impact on the interpretation of self-diffraction experiments. Furthermore, the resulting encoding of the time-energy relation in molecular-frame photoelectron momentum distributions shows the way of probing the molecular potential in real-time, and accessing a deeper understanding of electron transport during strong-field interactions.

Date: 2020
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DOI: 10.1038/s41467-020-16270-0

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