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Observation of laser-assisted electron scattering in superfluid helium
Laser-assisted electron scattering (LAES), a light–matter interaction process that facilitates energy transfer between strong light fields and free electrons, has so far been observed only in gas phase. Here we report on the observation of LAES at condensed phase particle densities, for which we cre...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8270992/ https://www.ncbi.nlm.nih.gov/pubmed/34244517 http://dx.doi.org/10.1038/s41467-021-24479-w |
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author | Treiber, Leonhard Thaler, Bernhard Heim, Pascal Stadlhofer, Michael Kanya, Reika Kitzler-Zeiler, Markus Koch, Markus |
author_facet | Treiber, Leonhard Thaler, Bernhard Heim, Pascal Stadlhofer, Michael Kanya, Reika Kitzler-Zeiler, Markus Koch, Markus |
author_sort | Treiber, Leonhard |
collection | PubMed |
description | Laser-assisted electron scattering (LAES), a light–matter interaction process that facilitates energy transfer between strong light fields and free electrons, has so far been observed only in gas phase. Here we report on the observation of LAES at condensed phase particle densities, for which we create nano-structured systems consisting of a single atom or molecule surrounded by a superfluid He shell of variable thickness (32–340 Å). We observe that free electrons, generated by femtosecond strong-field ionization of the core particle, can gain several tens of photon energies due to multiple LAES processes within the liquid He shell. Supported by Monte Carlo 3D LAES and elastic scattering simulations, these results provide the first insight into the interplay of LAES energy gain/loss and dissipative electron movement in a liquid. Condensed-phase LAES creates new possibilities for space-time studies of solids and for real-time tracing of free electrons in liquids. |
format | Online Article Text |
id | pubmed-8270992 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-82709922021-07-23 Observation of laser-assisted electron scattering in superfluid helium Treiber, Leonhard Thaler, Bernhard Heim, Pascal Stadlhofer, Michael Kanya, Reika Kitzler-Zeiler, Markus Koch, Markus Nat Commun Article Laser-assisted electron scattering (LAES), a light–matter interaction process that facilitates energy transfer between strong light fields and free electrons, has so far been observed only in gas phase. Here we report on the observation of LAES at condensed phase particle densities, for which we create nano-structured systems consisting of a single atom or molecule surrounded by a superfluid He shell of variable thickness (32–340 Å). We observe that free electrons, generated by femtosecond strong-field ionization of the core particle, can gain several tens of photon energies due to multiple LAES processes within the liquid He shell. Supported by Monte Carlo 3D LAES and elastic scattering simulations, these results provide the first insight into the interplay of LAES energy gain/loss and dissipative electron movement in a liquid. Condensed-phase LAES creates new possibilities for space-time studies of solids and for real-time tracing of free electrons in liquids. Nature Publishing Group UK 2021-07-09 /pmc/articles/PMC8270992/ /pubmed/34244517 http://dx.doi.org/10.1038/s41467-021-24479-w Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Treiber, Leonhard Thaler, Bernhard Heim, Pascal Stadlhofer, Michael Kanya, Reika Kitzler-Zeiler, Markus Koch, Markus Observation of laser-assisted electron scattering in superfluid helium |
title | Observation of laser-assisted electron scattering in superfluid helium |
title_full | Observation of laser-assisted electron scattering in superfluid helium |
title_fullStr | Observation of laser-assisted electron scattering in superfluid helium |
title_full_unstemmed | Observation of laser-assisted electron scattering in superfluid helium |
title_short | Observation of laser-assisted electron scattering in superfluid helium |
title_sort | observation of laser-assisted electron scattering in superfluid helium |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8270992/ https://www.ncbi.nlm.nih.gov/pubmed/34244517 http://dx.doi.org/10.1038/s41467-021-24479-w |
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