Attosecond spectroscopy of liquid water
| Autor: | Denis Jelovina, Axel Schild, Aaron von Conta, Martin Huppert, Hans Jakob Wörner, Conaill Perry, Inga Jordan, Michael Peper, Dominik Rattenbacher |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Multidisciplinary
Photon Attosecond Solvation 02 engineering and technology Photoionization 021001 nanoscience & nanotechnology 01 natural sciences Electron transport chain Chemical physics 0103 physical sciences Femtosecond Physics::Atomic and Molecular Clusters Molecule 010306 general physics 0210 nano-technology Spectroscopy |
| Zdroj: | Science, 369 (6506) Science |
| ISSN: | 0036-8075 1095-9203 |
| Popis: | Electronic dynamics in liquids are of fundamental importance, but time-resolved experiments have so far remained limited to the femtosecond time scale. We report the extension of attosecond spectroscopy to the liquid phase. We measured time delays of 50 to 70 attoseconds between the photoemission from liquid water and that from gaseous water at photon energies of 21.7 to 31.0 electron volts. These photoemission delays can be decomposed into a photoionization delay sensitive to the local environment and a delay originating from electron transport. In our experiments, the latter contribution is shown to be negligible. By referencing liquid water to gaseous water, we isolated the effect of solvation on the attosecond photoionization dynamics of water molecules. Our methods define an approach to separating bound and unbound electron dynamics from the structural response of the solvent. Science, 369 (6506) ISSN:0036-8075 ISSN:1095-9203 |
| Databáze: | OpenAIRE |
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