Photoelectric effect of helonium by an arbitrarily polarized XUV laser pulse.
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| Title: | Photoelectric effect of helonium by an arbitrarily polarized XUV laser pulse. |
|---|---|
| Authors: | Ambalampitiya, H B1 (AUTHOR), Sabry Khalil, I1,2 (AUTHOR), Ngoko Djiokap, J M1 (AUTHOR) marcelngoko@unl.edu |
| Source: | Journal of Physics B: Atomic, Molecular & Optical Physics. 2026, Vol. 59 Issue 7, p1-20. 20p. |
| Subjects: | Photoelectric effect, Optical polarization, Ab initio quantum chemistry methods, Photoelectron spectra, Laser pulses, Molecular orientation, Heteronuclear diatomic molecules |
| Abstract: | By means of quantum mechanical calculations, we investigate the Einstein's photoelectric effect in helonium (HeH+) molecule driven by an arbitrarily polarized XUV pulse of light. To examine the impact of the asymmetric initial electron distribution of the bound state on the photoelectron momentum distributions (PMDs) and the probability current densities (PCDs), we perform a comparative study for fixed-in-space H2 or HeH+ molecule, whose highest-occupied molecular orbital is symmetric or asymmetric. We find that the same pattern occurs in the PMD and PCD, with great sensitivities to the initial orbital symmetry, molecular orientation and light polarization state. Our simulations thus allow to watch the PMD arise asymptotically in the shape of the coordinate space PCD. In particular, when the light travels perpendicularly to the fixed-in-space H2 molecule, a dipole is formed in the distributions for linear polarization (LP), while a yin-yanglike pattern exhibiting dichroism is created for circular polarization (CP). On the contrary, for aligned HeH+ a LP pulse drives a large monopole, while a CP pulse transforms the distributions from yin-yanglike patterns to peculiar lung-like patterns including dichroism. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Physics B: Atomic, Molecular & Optical Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 192699094 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Photoelectric effect of helonium by an arbitrarily polarized XUV laser pulse. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ambalampitiya%2C+H+B%22">Ambalampitiya, H B</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sabry+Khalil%2C+I%22">Sabry Khalil, I</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ngoko+Djiokap%2C+J+M%22">Ngoko Djiokap, J M</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> marcelngoko@unl.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Physics+B%3A+Atomic%2C+Molecular+%26+Optical+Physics%22">Journal of Physics B: Atomic, Molecular & Optical Physics</searchLink>. 2026, Vol. 59 Issue 7, p1-20. 20p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Photoelectric+effect%22">Photoelectric effect</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+polarization%22">Optical polarization</searchLink><br /><searchLink fieldCode="DE" term="%22Ab+initio+quantum+chemistry+methods%22">Ab initio quantum chemistry methods</searchLink><br /><searchLink fieldCode="DE" term="%22Photoelectron+spectra%22">Photoelectron spectra</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+pulses%22">Laser pulses</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+orientation%22">Molecular orientation</searchLink><br /><searchLink fieldCode="DE" term="%22Heteronuclear+diatomic+molecules%22">Heteronuclear diatomic molecules</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: By means of quantum mechanical calculations, we investigate the Einstein's photoelectric effect in helonium (HeH+) molecule driven by an arbitrarily polarized XUV pulse of light. To examine the impact of the asymmetric initial electron distribution of the bound state on the photoelectron momentum distributions (PMDs) and the probability current densities (PCDs), we perform a comparative study for fixed-in-space H2 or HeH+ molecule, whose highest-occupied molecular orbital is symmetric or asymmetric. We find that the same pattern occurs in the PMD and PCD, with great sensitivities to the initial orbital symmetry, molecular orientation and light polarization state. Our simulations thus allow to watch the PMD arise asymptotically in the shape of the coordinate space PCD. In particular, when the light travels perpendicularly to the fixed-in-space H2 molecule, a dipole is formed in the distributions for linear polarization (LP), while a yin-yanglike pattern exhibiting dichroism is created for circular polarization (CP). On the contrary, for aligned HeH+ a LP pulse drives a large monopole, while a CP pulse transforms the distributions from yin-yanglike patterns to peculiar lung-like patterns including dichroism. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Physics B: Atomic, Molecular & Optical Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1088/1361-6455/ae509d Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 1 Subjects: – SubjectFull: Photoelectric effect Type: general – SubjectFull: Optical polarization Type: general – SubjectFull: Ab initio quantum chemistry methods Type: general – SubjectFull: Photoelectron spectra Type: general – SubjectFull: Laser pulses Type: general – SubjectFull: Molecular orientation Type: general – SubjectFull: Heteronuclear diatomic molecules Type: general Titles: – TitleFull: Photoelectric effect of helonium by an arbitrarily polarized XUV laser pulse. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ambalampitiya, H B – PersonEntity: Name: NameFull: Sabry Khalil, I – PersonEntity: Name: NameFull: Ngoko Djiokap, J M IsPartOfRelationships: – BibEntity: Dates: – D: 14 M: 04 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 09534075 Numbering: – Type: volume Value: 59 – Type: issue Value: 7 Titles: – TitleFull: Journal of Physics B: Atomic, Molecular & Optical Physics Type: main |
| ResultId | 1 |
