Attosecond betatron radiation pulse train

High-intensity X-ray sources are essential diagnostic tools for science, technology and medicine. Such X-ray sources can be produced in laser-plasma accelerators, where electrons emit short-wavelength radiation due to their betatron oscillations in the plasma wake of a laser pulse. Contemporary avai...

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Autores principales: Horný, Vojtěch, Krůs, Miroslav, Yan, Wenchao, Fülöp, Tünde
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7493897/
https://www.ncbi.nlm.nih.gov/pubmed/32934289
http://dx.doi.org/10.1038/s41598-020-72053-z
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author Horný, Vojtěch
Krůs, Miroslav
Yan, Wenchao
Fülöp, Tünde
author_facet Horný, Vojtěch
Krůs, Miroslav
Yan, Wenchao
Fülöp, Tünde
author_sort Horný, Vojtěch
collection PubMed
description High-intensity X-ray sources are essential diagnostic tools for science, technology and medicine. Such X-ray sources can be produced in laser-plasma accelerators, where electrons emit short-wavelength radiation due to their betatron oscillations in the plasma wake of a laser pulse. Contemporary available betatron radiation X-ray sources can deliver a collimated X-ray pulse of duration on the order of several femtoseconds from a source size of the order of several micrometres. In this paper we demonstrate, through particle-in-cell simulations, that the temporal resolution of such a source can be enhanced by an order of magnitude by a spatial modulation of the emitting relativistic electron bunch. The modulation is achieved by the interaction of the that electron bunch with a co-propagating laser beam which results in the generation of a train of equidistant sub-femtosecond X-ray pulses. The distance between the single pulses of a train is tuned by the wavelength of the modulation laser pulse. The modelled experimental setup is achievable with current technologies. Potential applications include stroboscopic sampling of ultrafast fundamental processes.
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spelling pubmed-74938972020-09-16 Attosecond betatron radiation pulse train Horný, Vojtěch Krůs, Miroslav Yan, Wenchao Fülöp, Tünde Sci Rep Article High-intensity X-ray sources are essential diagnostic tools for science, technology and medicine. Such X-ray sources can be produced in laser-plasma accelerators, where electrons emit short-wavelength radiation due to their betatron oscillations in the plasma wake of a laser pulse. Contemporary available betatron radiation X-ray sources can deliver a collimated X-ray pulse of duration on the order of several femtoseconds from a source size of the order of several micrometres. In this paper we demonstrate, through particle-in-cell simulations, that the temporal resolution of such a source can be enhanced by an order of magnitude by a spatial modulation of the emitting relativistic electron bunch. The modulation is achieved by the interaction of the that electron bunch with a co-propagating laser beam which results in the generation of a train of equidistant sub-femtosecond X-ray pulses. The distance between the single pulses of a train is tuned by the wavelength of the modulation laser pulse. The modelled experimental setup is achievable with current technologies. Potential applications include stroboscopic sampling of ultrafast fundamental processes. Nature Publishing Group UK 2020-09-15 /pmc/articles/PMC7493897/ /pubmed/32934289 http://dx.doi.org/10.1038/s41598-020-72053-z Text en © The Author(s) 2020 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/.
spellingShingle Article
Horný, Vojtěch
Krůs, Miroslav
Yan, Wenchao
Fülöp, Tünde
Attosecond betatron radiation pulse train
title Attosecond betatron radiation pulse train
title_full Attosecond betatron radiation pulse train
title_fullStr Attosecond betatron radiation pulse train
title_full_unstemmed Attosecond betatron radiation pulse train
title_short Attosecond betatron radiation pulse train
title_sort attosecond betatron radiation pulse train
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7493897/
https://www.ncbi.nlm.nih.gov/pubmed/32934289
http://dx.doi.org/10.1038/s41598-020-72053-z
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