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arXiv · 2212.04742

Ultrastable, high-repetition-rate attosecond beamline for time-resolved XUV-IR coincidence spectroscopy

Dominik Ertel·Marvin Schmoll·Samuel Kellerer·Anna-Lena Jäger·Robin Weissenbilder·Matteo Moioli·Hamed Ahmadi·David Busto·Ioannis Makos·Fabio Frassetto·Luca Poletto·Claus Dieter Schröter·Thomas Pfeifer·Robert Moshammer·Giuseppe Sansone
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Abstract

The implementation of attosecond photoelectron-photoion coincidence spectroscopy for the investigation of atomic and molecular dynamics calls for a high-repetition-rate driving source combined with experimental setups characterized by excellent stability for data acquisition over time intervals ranging from a few hours up to a few days. This requirement is crucial for the investigation of processes characterized by low cross sections and for the characterization of fully differential photoelectron(s) and photoion(s) angular and energy distributions. We demonstrate that the implementation of industrial-grade lasers, combined with a careful design of the delay line implemented in the pump-probe setup, allows one to reach ultrastable experimental conditions leading to an error in the estimation of the time delays of only 12 as. This result opens new possibilities for the investigation of attosecond dynamics in simple quantum systems.

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Dominik Ertel, Marvin Schmoll, Samuel Kellerer, Anna-Lena Jäger, Robin Weissenbilder, Matteo Moioli, Hamed Ahmadi, David Busto, Ioannis Makos, Fabio Frassetto, Luca Poletto, Claus Dieter Schröter, Thomas Pfeifer, Robert Moshammer, Giuseppe Sansone. 2022-12-09. Ultrastable, high-repetition-rate attosecond beamline for time-resolved XUV-IR coincidence spectroscopy. https://doi.org/10.1063/5.0139496

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