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Anisotropic photoemission time delays close to a Fano resonance

Electron correlation and multielectron effects are fundamental interactions that govern many physical and chemical processes in atomic, molecular and solid state systems. The process of autoionization, induced by resonant excitation of electrons into discrete states present in the spectral continuum...

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Autores principales: Cirelli, Claudio, Marante, Carlos, Heuser, Sebastian, Petersson, C. L. M., Galán, Álvaro Jiménez, Argenti, Luca, Zhong, Shiyang, Busto, David, Isinger, Marcus, Nandi, Saikat, Maclot, Sylvain, Rading, Linnea, Johnsson, Per, Gisselbrecht, Mathieu, Lucchini, Matteo, Gallmann, Lukas, Dahlström, J. Marcus, Lindroth, Eva, L’Huillier, Anne, Martín, Fernando, Keller, Ursula
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5840338/
https://www.ncbi.nlm.nih.gov/pubmed/29511164
http://dx.doi.org/10.1038/s41467-018-03009-1
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author Cirelli, Claudio
Marante, Carlos
Heuser, Sebastian
Petersson, C. L. M.
Galán, Álvaro Jiménez
Argenti, Luca
Zhong, Shiyang
Busto, David
Isinger, Marcus
Nandi, Saikat
Maclot, Sylvain
Rading, Linnea
Johnsson, Per
Gisselbrecht, Mathieu
Lucchini, Matteo
Gallmann, Lukas
Dahlström, J. Marcus
Lindroth, Eva
L’Huillier, Anne
Martín, Fernando
Keller, Ursula
author_facet Cirelli, Claudio
Marante, Carlos
Heuser, Sebastian
Petersson, C. L. M.
Galán, Álvaro Jiménez
Argenti, Luca
Zhong, Shiyang
Busto, David
Isinger, Marcus
Nandi, Saikat
Maclot, Sylvain
Rading, Linnea
Johnsson, Per
Gisselbrecht, Mathieu
Lucchini, Matteo
Gallmann, Lukas
Dahlström, J. Marcus
Lindroth, Eva
L’Huillier, Anne
Martín, Fernando
Keller, Ursula
author_sort Cirelli, Claudio
collection PubMed
description Electron correlation and multielectron effects are fundamental interactions that govern many physical and chemical processes in atomic, molecular and solid state systems. The process of autoionization, induced by resonant excitation of electrons into discrete states present in the spectral continuum of atomic and molecular targets, is mediated by electron correlation. Here we investigate the attosecond photoemission dynamics in argon in the 20–40 eV spectral range, in the vicinity of the 3s(−1)np autoionizing resonances. We present measurements of the differential photoionization cross section and extract energy and angle-dependent atomic time delays with an attosecond interferometric method. With the support of a theoretical model, we are able to attribute a large part of the measured time delay anisotropy to the presence of autoionizing resonances, which not only distort the phase of the emitted photoelectron wave packet but also introduce an angular dependence.
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spelling pubmed-58403382018-03-09 Anisotropic photoemission time delays close to a Fano resonance Cirelli, Claudio Marante, Carlos Heuser, Sebastian Petersson, C. L. M. Galán, Álvaro Jiménez Argenti, Luca Zhong, Shiyang Busto, David Isinger, Marcus Nandi, Saikat Maclot, Sylvain Rading, Linnea Johnsson, Per Gisselbrecht, Mathieu Lucchini, Matteo Gallmann, Lukas Dahlström, J. Marcus Lindroth, Eva L’Huillier, Anne Martín, Fernando Keller, Ursula Nat Commun Article Electron correlation and multielectron effects are fundamental interactions that govern many physical and chemical processes in atomic, molecular and solid state systems. The process of autoionization, induced by resonant excitation of electrons into discrete states present in the spectral continuum of atomic and molecular targets, is mediated by electron correlation. Here we investigate the attosecond photoemission dynamics in argon in the 20–40 eV spectral range, in the vicinity of the 3s(−1)np autoionizing resonances. We present measurements of the differential photoionization cross section and extract energy and angle-dependent atomic time delays with an attosecond interferometric method. With the support of a theoretical model, we are able to attribute a large part of the measured time delay anisotropy to the presence of autoionizing resonances, which not only distort the phase of the emitted photoelectron wave packet but also introduce an angular dependence. Nature Publishing Group UK 2018-03-06 /pmc/articles/PMC5840338/ /pubmed/29511164 http://dx.doi.org/10.1038/s41467-018-03009-1 Text en © The Author(s) 2018 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
Cirelli, Claudio
Marante, Carlos
Heuser, Sebastian
Petersson, C. L. M.
Galán, Álvaro Jiménez
Argenti, Luca
Zhong, Shiyang
Busto, David
Isinger, Marcus
Nandi, Saikat
Maclot, Sylvain
Rading, Linnea
Johnsson, Per
Gisselbrecht, Mathieu
Lucchini, Matteo
Gallmann, Lukas
Dahlström, J. Marcus
Lindroth, Eva
L’Huillier, Anne
Martín, Fernando
Keller, Ursula
Anisotropic photoemission time delays close to a Fano resonance
title Anisotropic photoemission time delays close to a Fano resonance
title_full Anisotropic photoemission time delays close to a Fano resonance
title_fullStr Anisotropic photoemission time delays close to a Fano resonance
title_full_unstemmed Anisotropic photoemission time delays close to a Fano resonance
title_short Anisotropic photoemission time delays close to a Fano resonance
title_sort anisotropic photoemission time delays close to a fano resonance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5840338/
https://www.ncbi.nlm.nih.gov/pubmed/29511164
http://dx.doi.org/10.1038/s41467-018-03009-1
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