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Attosecond streaking using a rescattered electron in an intense laser field

When an atom or molecule is exposed to a strong laser field, an electron can tunnel out from the parent ion and moves along a specific trajectory. This ultrafast electron motion is sensitive to a variation of the laser field. Thus, it can be used as a fast temporal gate for the temporal characteriza...

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Autores principales: Kim, Yang Hwan, Ivanov, Igor A., Hwang, Sung In, Kim, Kyungseung, Nam, Chang Hee, Kim, Kyung Taec
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7745043/
https://www.ncbi.nlm.nih.gov/pubmed/33328542
http://dx.doi.org/10.1038/s41598-020-79034-2
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author Kim, Yang Hwan
Ivanov, Igor A.
Hwang, Sung In
Kim, Kyungseung
Nam, Chang Hee
Kim, Kyung Taec
author_facet Kim, Yang Hwan
Ivanov, Igor A.
Hwang, Sung In
Kim, Kyungseung
Nam, Chang Hee
Kim, Kyung Taec
author_sort Kim, Yang Hwan
collection PubMed
description When an atom or molecule is exposed to a strong laser field, an electron can tunnel out from the parent ion and moves along a specific trajectory. This ultrafast electron motion is sensitive to a variation of the laser field. Thus, it can be used as a fast temporal gate for the temporal characterization of the laser field. Here, we demonstrate a new type of attosecond streaking wherein a rescattered electron trajectory is manipulated by an ultrashort laser pulse. The vector potential of the laser pulse is directly recorded in the photoelectron spectra of the rescattered electron. In contrast to high harmonic generation methods, our approach has no directional ambiguity in space, leading to complete in situ temporal characterization. In addition, it provides timing information on ionization and re-scattering events. Therefore, our approach can be a useful tool for the investigation of strong-field processes triggered by rescattering, such as non-sequential double ionization and laser-induced electron diffraction.
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spelling pubmed-77450432020-12-18 Attosecond streaking using a rescattered electron in an intense laser field Kim, Yang Hwan Ivanov, Igor A. Hwang, Sung In Kim, Kyungseung Nam, Chang Hee Kim, Kyung Taec Sci Rep Article When an atom or molecule is exposed to a strong laser field, an electron can tunnel out from the parent ion and moves along a specific trajectory. This ultrafast electron motion is sensitive to a variation of the laser field. Thus, it can be used as a fast temporal gate for the temporal characterization of the laser field. Here, we demonstrate a new type of attosecond streaking wherein a rescattered electron trajectory is manipulated by an ultrashort laser pulse. The vector potential of the laser pulse is directly recorded in the photoelectron spectra of the rescattered electron. In contrast to high harmonic generation methods, our approach has no directional ambiguity in space, leading to complete in situ temporal characterization. In addition, it provides timing information on ionization and re-scattering events. Therefore, our approach can be a useful tool for the investigation of strong-field processes triggered by rescattering, such as non-sequential double ionization and laser-induced electron diffraction. Nature Publishing Group UK 2020-12-16 /pmc/articles/PMC7745043/ /pubmed/33328542 http://dx.doi.org/10.1038/s41598-020-79034-2 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Kim, Yang Hwan
Ivanov, Igor A.
Hwang, Sung In
Kim, Kyungseung
Nam, Chang Hee
Kim, Kyung Taec
Attosecond streaking using a rescattered electron in an intense laser field
title Attosecond streaking using a rescattered electron in an intense laser field
title_full Attosecond streaking using a rescattered electron in an intense laser field
title_fullStr Attosecond streaking using a rescattered electron in an intense laser field
title_full_unstemmed Attosecond streaking using a rescattered electron in an intense laser field
title_short Attosecond streaking using a rescattered electron in an intense laser field
title_sort attosecond streaking using a rescattered electron in an intense laser field
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7745043/
https://www.ncbi.nlm.nih.gov/pubmed/33328542
http://dx.doi.org/10.1038/s41598-020-79034-2
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