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Attosecond-pump attosecond-probe x-ray spectroscopy of liquid water.
Li, Shuai; Lu, Lixin; Bhattacharyya, Swarnendu; Pearce, Carolyn; Li, Kai; Nienhuis, Emily T; Doumy, Gilles; Schaller, R D; Moeller, S; Lin, M-F; Dakovski, G; Hoffman, D J; Garratt, D; Larsen, Kirk A; Koralek, J D; Hampton, C Y; Cesar, D; Duris, Joseph; Zhang, Z; Sudar, Nicholas; Cryan, James P; Marinelli, A; Li, Xiaosong; Inhester, Ludger; Santra, Robin; Young, Linda.
Afiliação
  • Li S; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA.
  • Lu L; Department of Chemistry, University of Washington, Seattle, WA, USA.
  • Bhattacharyya S; Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
  • Pearce C; Pacific Northwest National Laboratory, Richland, WA, USA.
  • Li K; Department of Crop and Soil Sciences, Washington State University, Pullman, WA, USA.
  • Nienhuis ET; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA.
  • Doumy G; Department of Physics and James Franck Institute, The University of Chicago, Chicago, IL, USA.
  • Schaller RD; Pacific Northwest National Laboratory, Richland, WA, USA.
  • Moeller S; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA.
  • Lin MF; Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL, USA.
  • Dakovski G; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Hoffman DJ; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Garratt D; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Larsen KA; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Koralek JD; Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Hampton CY; Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Cesar D; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Duris J; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Zhang Z; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Sudar N; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Cryan JP; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Marinelli A; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Li X; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Inhester L; Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Santra R; SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Young L; Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
Science ; 383(6687): 1118-1122, 2024 Mar 08.
Article em En | MEDLINE | ID: mdl-38359104
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 1b1 splitting in the x-ray emission spectrum is related to dynamics and is not evidence of two structural motifs in ambient liquid water.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos