Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2

We investigate how attosecond XUV pump/IR probe schemes can be used to exert control on the ionization dynamics of the hydrogen molecule. The aim is to play with all available experimental parameters in the problem, namely the XUV pump–IR probe delay, the energy and emission direction of the produce...

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Authors: Bello, Roger Y., Martín García, Fernando, Palacios Cañas, Alicia
Format: article
Publication Date:2020
Country:España
Institution:Universidad Autónoma de Madrid
Repository:Biblos-e Archivo. Repositorio Institucional de la UAM
Language:English
OAI Identifier:oai:repositorio.uam.es:10486/730180
Online Access:https://hdl.handle.net/10486/730180
https://dx.doi.org/10.1039/d0fd00114g
Access Level:Open access
Keyword:Angular distribution
electron emission
kinetic energy
molecules
photoelectrons
Química
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spelling Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2Bello, Roger Y.Martín García, FernandoPalacios Cañas, AliciaAngular distributionelectron emissionkinetic energymoleculesphotoelectronsQuímicaWe investigate how attosecond XUV pump/IR probe schemes can be used to exert control on the ionization dynamics of the hydrogen molecule. The aim is to play with all available experimental parameters in the problem, namely the XUV pump–IR probe delay, the energy and emission direction of the produced photo-ions, as well as combinations of them, to uncover control strategies that can lead to preferential electron ejection directions. We do so by accurately solving the time-dependent Schrodinger equation, with inclusion of both electronic and nuclear motions, as well as the coupling between them. We show that both the IR pulse and the nuclear motion can be used to break the molecular inversion symmetry, thus leading to asymmetric molecular-frame photoelectron angular distributions. The preferential electron emission direction can thus be tuned by varying the pump–probe delay, by choosing specific ranges of proton kinetic energies, or both. We expect that similar control strategies could be used in more complex molecules containing light nucleiWork supported by the MICINN projects PID2019-105458RB-I00, the “Severo Ochoa” Programme for Centres of Excellence in R&D (SEV-2016-0686) and the “María de Maeztu” Programme for Units of Excellence in R&D (CEX2018-000805-M)Royal Society of ChemistryFacultad de CienciasDepartamento de QuímicaAb Initio Simulations of Electron-Nuclear Dynamics: from Atoms to SurfacesFísica Atómica y Molecular de Sistemas no Ligados (EXP C-052)Agencia Estatal de Investigación20202020-11-05research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10486/730180https://dx.doi.org/10.1039/d0fd00114g33566038reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7301802026-06-23T12:46:27Z
dc.title.none.fl_str_mv Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2
title Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2
spellingShingle Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2
Bello, Roger Y.
Angular distribution
electron emission
kinetic energy
molecules
photoelectrons
Química
title_short Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2
title_full Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2
title_fullStr Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2
title_full_unstemmed Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2
title_sort Attosecond laser control of photoelectron angular distributions in XUV-induced ionization of H2
dc.creator.none.fl_str_mv Bello, Roger Y.
Martín García, Fernando
Palacios Cañas, Alicia
author Bello, Roger Y.
author_facet Bello, Roger Y.
Martín García, Fernando
Palacios Cañas, Alicia
author_role author
author2 Martín García, Fernando
Palacios Cañas, Alicia
author2_role author
author
dc.contributor.none.fl_str_mv Facultad de Ciencias
Departamento de Química
Ab Initio Simulations of Electron-Nuclear Dynamics: from Atoms to Surfaces
Física Atómica y Molecular de Sistemas no Ligados (EXP C-052)
Agencia Estatal de Investigación
dc.subject.none.fl_str_mv Angular distribution
electron emission
kinetic energy
molecules
photoelectrons
Química
topic Angular distribution
electron emission
kinetic energy
molecules
photoelectrons
Química
description We investigate how attosecond XUV pump/IR probe schemes can be used to exert control on the ionization dynamics of the hydrogen molecule. The aim is to play with all available experimental parameters in the problem, namely the XUV pump–IR probe delay, the energy and emission direction of the produced photo-ions, as well as combinations of them, to uncover control strategies that can lead to preferential electron ejection directions. We do so by accurately solving the time-dependent Schrodinger equation, with inclusion of both electronic and nuclear motions, as well as the coupling between them. We show that both the IR pulse and the nuclear motion can be used to break the molecular inversion symmetry, thus leading to asymmetric molecular-frame photoelectron angular distributions. The preferential electron emission direction can thus be tuned by varying the pump–probe delay, by choosing specific ranges of proton kinetic energies, or both. We expect that similar control strategies could be used in more complex molecules containing light nuclei
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-11-05
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10486/730180
https://dx.doi.org/10.1039/d0fd00114g
33566038
url https://hdl.handle.net/10486/730180
https://dx.doi.org/10.1039/d0fd00114g
identifier_str_mv 33566038
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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