Attosecond-pump attosecond-probe x-ray spectroscopy of liquid water-Reference-Cited by-同舟云学术

Attosecond-pump attosecond-probe x-ray spectroscopy of liquid water

Published:2024-03-08 Issue:6687 Volume:383 Page:1118-1122
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Li Shuai¹^ORCID,Lu Lixin²^ORCID,Bhattacharyya Swarnendu³^ORCID,Pearce Carolyn⁴⁵^ORCID,Li Kai¹⁶^ORCID,Nienhuis Emily T.⁴^ORCID,Doumy Gilles¹^ORCID,Schaller R. D.⁷^ORCID,Moeller S.⁸^ORCID,Lin M.-F.⁸^ORCID,Dakovski G.⁸^ORCID,Hoffman D. J.⁸^ORCID,Garratt D.⁹^ORCID,Larsen Kirk A.⁹^ORCID,Koralek J. D.⁸^ORCID,Hampton C. Y.⁸^ORCID,Cesar D.⁸^ORCID,Duris Joseph⁸^ORCID,Zhang Z.⁸^ORCID,Sudar Nicholas⁸^ORCID,Cryan James P.⁸⁹^ORCID,Marinelli A.⁸⁹^ORCID,Li Xiaosong²^ORCID,Inhester Ludger³¹⁰^ORCID,Santra Robin³¹⁰¹¹^ORCID,Young Linda¹⁶^ORCID

Affiliation:

1. Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA.

2. Department of Chemistry, University of Washington, Seattle, WA, USA.

3. Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.

4. Pacific Northwest National Laboratory, Richland, WA, USA.

5. Department of Crop and Soil Sciences, Washington State University, Pullman, WA, USA.

6. Department of Physics and James Franck Institute, The University of Chicago, Chicago, IL, USA.

7. Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL, USA.

8. SLAC National Accelerator Laboratory, Menlo Park, CA, USA.

9. Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.

10. The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany.

11. Department of Physics, Universität Hamburg, Hamburg, Germany.

Abstract

Attosecond-pump/attosecond-probe experiments have long been sought as the most straightforward method for observing electron dynamics in real time. Although there has been much success with overlapped near-infrared femtosecond and extreme ultraviolet attosecond pulses combined with theory, true attosecond-pump/attosecond-probe experiments have been limited. We used a synchronized attosecond x-ray pulse pair from an x-ray free-electron laser to study the electronic response to valence ionization in liquid water through all x-ray attosecond transient absorption spectroscopy (AX-ATAS). Our analysis showed that the AX-ATAS response is confined to the subfemtosecond timescale, eliminating any hydrogen atom motion and demonstrating experimentally that the 1b 1 splitting in the x-ray emission spectrum is related to dynamics and is not evidence of two structural motifs in ambient liquid water.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://www.science.org/doi/pdf/10.1126/science.adn6059

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