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Controlling quantum wave packet of electronic motion on field-dressed Coulomb potential of H2-plus-by carrier-envelope phase-dependent strong field laser pulses

Solving numerically a non-Born-Oppenheimer time-dependent Schrodinger equation to study the dynamics of H-2 subjected to strong field six-cycle laser pulses (I=4x10(14) W/cm(2), lambda=800 nm) leads to the newly ultrafast electron imaging in the dissociative-ionization of H2+. This includes the elec...

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Main Author: Daud, Mohammad Noh
Format: Article
Published: Wiley 2021
Subjects:
QA Mathematics
QC Physics
QD Chemistry
Online Access:http://eprints.um.edu.my/26853/
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spelling my.um.eprints.268532022-04-14T01:20:41Z http://eprints.um.edu.my/26853/ Controlling quantum wave packet of electronic motion on field-dressed Coulomb potential of H2-plus-by carrier-envelope phase-dependent strong field laser pulses Daud, Mohammad Noh QA Mathematics QC Physics QD Chemistry Solving numerically a non-Born-Oppenheimer time-dependent Schrodinger equation to study the dynamics of H-2 subjected to strong field six-cycle laser pulses (I=4x10(14) W/cm(2), lambda=800 nm) leads to the newly ultrafast electron imaging in the dissociative-ionization of H2+. This includes the electron distribution in H2+ oscillates symmetrically with laser cycle with theta+pi periodicity where the distribution concentrates between two protons for about 8 fs, being trapped in a Coulomb potential well. Nonetheless, the most important finding reveals that the electron symmetrical distribution begins to break up in the field-free region after 24 fs when the H2+ internuclear distance stretches larger than 9 a.u. It is a result of the distortion of Coulomb potential where the ejected electron preferentially localizes in one of the double-well potential separated by the inner Coulomb potential barrier, leading to the new images of charge resonance enhanced ionization. Controlling laser carrier-envelope phase theta enables one to quantify such phenomena with the highest total asymmetries Aetot of 0.75 and -0.75 occur at 10 degrees and 190 degrees, respectively, associated with the electron preferential directionality being ionized to the right and the left paths along the H2+ molecular axis. Wiley 2021-11-05 Article PeerReviewed Daud, Mohammad Noh (2021) Controlling quantum wave packet of electronic motion on field-dressed Coulomb potential of H2-plus-by carrier-envelope phase-dependent strong field laser pulses. International Journal of Quantum Chemistry, 121 (21). ISSN 0020-7608, DOI https://doi.org/10.1002/qua.26783 <https://doi.org/10.1002/qua.26783>. 10.1002/qua.26783
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QA Mathematics
QC Physics
QD Chemistry
spellingShingle QA Mathematics
QC Physics
QD Chemistry
Daud, Mohammad Noh
Controlling quantum wave packet of electronic motion on field-dressed Coulomb potential of H2-plus-by carrier-envelope phase-dependent strong field laser pulses
description Solving numerically a non-Born-Oppenheimer time-dependent Schrodinger equation to study the dynamics of H-2 subjected to strong field six-cycle laser pulses (I=4x10(14) W/cm(2), lambda=800 nm) leads to the newly ultrafast electron imaging in the dissociative-ionization of H2+. This includes the electron distribution in H2+ oscillates symmetrically with laser cycle with theta+pi periodicity where the distribution concentrates between two protons for about 8 fs, being trapped in a Coulomb potential well. Nonetheless, the most important finding reveals that the electron symmetrical distribution begins to break up in the field-free region after 24 fs when the H2+ internuclear distance stretches larger than 9 a.u. It is a result of the distortion of Coulomb potential where the ejected electron preferentially localizes in one of the double-well potential separated by the inner Coulomb potential barrier, leading to the new images of charge resonance enhanced ionization. Controlling laser carrier-envelope phase theta enables one to quantify such phenomena with the highest total asymmetries Aetot of 0.75 and -0.75 occur at 10 degrees and 190 degrees, respectively, associated with the electron preferential directionality being ionized to the right and the left paths along the H2+ molecular axis.
format Article
author Daud, Mohammad Noh
author_facet Daud, Mohammad Noh
author_sort Daud, Mohammad Noh
title Controlling quantum wave packet of electronic motion on field-dressed Coulomb potential of H2-plus-by carrier-envelope phase-dependent strong field laser pulses
title_short Controlling quantum wave packet of electronic motion on field-dressed Coulomb potential of H2-plus-by carrier-envelope phase-dependent strong field laser pulses
title_full Controlling quantum wave packet of electronic motion on field-dressed Coulomb potential of H2-plus-by carrier-envelope phase-dependent strong field laser pulses
title_fullStr Controlling quantum wave packet of electronic motion on field-dressed Coulomb potential of H2-plus-by carrier-envelope phase-dependent strong field laser pulses
title_full_unstemmed Controlling quantum wave packet of electronic motion on field-dressed Coulomb potential of H2-plus-by carrier-envelope phase-dependent strong field laser pulses
title_sort controlling quantum wave packet of electronic motion on field-dressed coulomb potential of h2-plus-by carrier-envelope phase-dependent strong field laser pulses
publisher Wiley
publishDate 2021
url http://eprints.um.edu.my/26853/
_version_ 1735409466932723712
score 13.211869

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