Attosecond soft X-ray pulses generated by chirp-dispersed manipulation in an XFEL reveal nonlinear core-electron dynamics in neon
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2024
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| author | Funke, Lars Ilchen, Markus Serkez, Svitozar Dingel, Kristina Mazza, Tommaso Mullins, Terence Otto, Thorsten Rivas, Daniel E. Savio, Sara Walter, Peter Wieland, Niclas Wülfing, Lasse Bari, Sadia Boll, Rebecca Braune, Markus Calegari, Francesca De Fanis, Alberto Decking, Winfried Duensing, Andreas Düsterer, Stefan Egun, Felix Ehresmann, Arno Erk, Benjamin de Lima, Danilo Enoque Ferreira Galler, Andreas Geloni, Gianluca Gerasimova, Natalia Guetg, Marc Grünert, Jan Grychtol, Patrik Hans, Andreas Held, Arne Hindriksson, Ruda Jahnke, Till Laksman, Joakim Larsson, Mats Liu, Jia Marangos, Jon P. Marder, Lutz Meier, David Meyer, Michael Mirian, Najmeh Ott, Christian Passow, Christopher Pfeifer, Thomas Rupprecht, Patrick Schletter, Albert Schmidt, Philipp Scholz, Frank Schott, Simon Schneidmiller, Evgeny Sick, Bernhard Tiedtke, Kai Tomin, Sergey Trebushinin, Andrei Usenko, Sergey Wanie, Vincent Wurzer, Markus Yurkov, Mikhail Zagorodnov, Igor Zhaunerchyk, Vitali Helml, Wolfram |
| author_facet | Funke, Lars Ilchen, Markus Serkez, Svitozar Dingel, Kristina Mazza, Tommaso Mullins, Terence Otto, Thorsten Rivas, Daniel E. Savio, Sara Walter, Peter Wieland, Niclas Wülfing, Lasse Bari, Sadia Boll, Rebecca Braune, Markus Calegari, Francesca De Fanis, Alberto Decking, Winfried Duensing, Andreas Düsterer, Stefan Egun, Felix Ehresmann, Arno Erk, Benjamin de Lima, Danilo Enoque Ferreira Galler, Andreas Geloni, Gianluca Gerasimova, Natalia Guetg, Marc Grünert, Jan Grychtol, Patrik Hans, Andreas Held, Arne Hindriksson, Ruda Jahnke, Till Laksman, Joakim Larsson, Mats Liu, Jia Marangos, Jon P. Marder, Lutz Meier, David Meyer, Michael Mirian, Najmeh Ott, Christian Passow, Christopher Pfeifer, Thomas Rupprecht, Patrick Schletter, Albert Schmidt, Philipp Scholz, Frank Schott, Simon Schneidmiller, Evgeny Sick, Bernhard Tiedtke, Kai Tomin, Sergey Trebushinin, Andrei Usenko, Sergey Wanie, Vincent Wurzer, Markus Yurkov, Mikhail Zagorodnov, Igor Zhaunerchyk, Vitali Helml, Wolfram |
| contents | Free-electron lasers have demonstrated their capability of generating intense attosecond X-ray pulses, which are the key to studying electron dynamics at their natural time scale and in specifically targeted electronic states, but come at the expanse of complicated generation schemes and stochastic pulse shapes. Here, we demonstrate a novel and simple operation concept based on the manipulation of the electron-bunch chirp-dispersion and working with the full 4.5 MHz repetition rate at the European XFEL in Germany. With a high-fidelity single-shot temporal characterisation, we detect X-ray pulses with durations of down to 200 attoseconds and peak powers reaching into the terawatt regime at ~1 keV photon energy. As a direct application, we present simultaneous measurements of nonlinear X-ray-matter interaction via time-resolved electron spectroscopy. Using the derived temporal pulse information and restricting the durations to a regime where individual X-ray pulses are shorter than the single-core-hole life time in neon atoms, we reveal an otherwise hidden peak-intensity dependence in the nonlinear dynamics of double-core-hole formation. Our results open the field of attosecond science to the investigation of electronic processes not only in the ground state but also in systems driven far off their equilibrium. They shed light on highly transient intermediate steps in complex electronic dynamics and thus promise to help build the conceptual bridge between fundamental physical processes and chemical photo-reactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_03858 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Attosecond soft X-ray pulses generated by chirp-dispersed manipulation in an XFEL reveal nonlinear core-electron dynamics in neon Funke, Lars Ilchen, Markus Serkez, Svitozar Dingel, Kristina Mazza, Tommaso Mullins, Terence Otto, Thorsten Rivas, Daniel E. Savio, Sara Walter, Peter Wieland, Niclas Wülfing, Lasse Bari, Sadia Boll, Rebecca Braune, Markus Calegari, Francesca De Fanis, Alberto Decking, Winfried Duensing, Andreas Düsterer, Stefan Egun, Felix Ehresmann, Arno Erk, Benjamin de Lima, Danilo Enoque Ferreira Galler, Andreas Geloni, Gianluca Gerasimova, Natalia Guetg, Marc Grünert, Jan Grychtol, Patrik Hans, Andreas Held, Arne Hindriksson, Ruda Jahnke, Till Laksman, Joakim Larsson, Mats Liu, Jia Marangos, Jon P. Marder, Lutz Meier, David Meyer, Michael Mirian, Najmeh Ott, Christian Passow, Christopher Pfeifer, Thomas Rupprecht, Patrick Schletter, Albert Schmidt, Philipp Scholz, Frank Schott, Simon Schneidmiller, Evgeny Sick, Bernhard Tiedtke, Kai Tomin, Sergey Trebushinin, Andrei Usenko, Sergey Wanie, Vincent Wurzer, Markus Yurkov, Mikhail Zagorodnov, Igor Zhaunerchyk, Vitali Helml, Wolfram Optics Atomic Physics Free-electron lasers have demonstrated their capability of generating intense attosecond X-ray pulses, which are the key to studying electron dynamics at their natural time scale and in specifically targeted electronic states, but come at the expanse of complicated generation schemes and stochastic pulse shapes. Here, we demonstrate a novel and simple operation concept based on the manipulation of the electron-bunch chirp-dispersion and working with the full 4.5 MHz repetition rate at the European XFEL in Germany. With a high-fidelity single-shot temporal characterisation, we detect X-ray pulses with durations of down to 200 attoseconds and peak powers reaching into the terawatt regime at ~1 keV photon energy. As a direct application, we present simultaneous measurements of nonlinear X-ray-matter interaction via time-resolved electron spectroscopy. Using the derived temporal pulse information and restricting the durations to a regime where individual X-ray pulses are shorter than the single-core-hole life time in neon atoms, we reveal an otherwise hidden peak-intensity dependence in the nonlinear dynamics of double-core-hole formation. Our results open the field of attosecond science to the investigation of electronic processes not only in the ground state but also in systems driven far off their equilibrium. They shed light on highly transient intermediate steps in complex electronic dynamics and thus promise to help build the conceptual bridge between fundamental physical processes and chemical photo-reactions. |
| title | Attosecond soft X-ray pulses generated by chirp-dispersed manipulation in an XFEL reveal nonlinear core-electron dynamics in neon |
| topic | Optics Atomic Physics |
| url | https://arxiv.org/abs/2408.03858 |