Double-resonance studies of electronically autoionizing states of molecular nitrogen.
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| Title: | Double-resonance studies of electronically autoionizing states of molecular nitrogen. |
|---|---|
| Authors: | Sen, Ananya1 (AUTHOR), Pratt, S. T.1 (AUTHOR) stpratt@anl.gov |
| Source: | Molecular Physics. Nov2019, Vol. 117 Issue 21, p2930-2940. 11p. |
| Subjects: | Rydberg states, Photoelectrons, Absorption spectra, Nitrogen |
| Geographic Terms: | Canada |
| Abstract: | Double-resonance excitation of molecular nitrogen, N2, via selected rotational levels of the , v′ = 0 state has been used to probe the first two bands in the new Ogawa series [M. Ogawa, Can. J. Phys. 42, 1087 (1964)], which lie above the first ionisation threshold of the molecule. These bands are rotationally unresolved in room-temperature and jet-cooled absorption spectra, but the double-resonance technique allows a rotational analysis and first confirmation of the assignment as transitions to n = 4 members of the (A2Πu)ndπ, v Rydberg series. In principle, the probe transition from the , v = 0 level to these Rydberg states corresponds to a two-electron transition, and this aspect of the results is explored. Finally, velocity map imaging allows a determination of the photoelectron branching fractions and angular distributions, providing insight into the electronic autoionisation dynamics. [ABSTRACT FROM AUTHOR] |
| Copyright of Molecular Physics is the property of Taylor & Francis Ltd 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: 138868048 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Double-resonance studies of electronically autoionizing states of molecular nitrogen. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sen%2C+Ananya%22">Sen, Ananya</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pratt%2C+S%2E+T%2E%22">Pratt, S. T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> stpratt@anl.gov</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Molecular+Physics%22">Molecular Physics</searchLink>. Nov2019, Vol. 117 Issue 21, p2930-2940. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Rydberg+states%22">Rydberg states</searchLink><br /><searchLink fieldCode="DE" term="%22Photoelectrons%22">Photoelectrons</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption+spectra%22">Absorption spectra</searchLink><br /><searchLink fieldCode="DE" term="%22Nitrogen%22">Nitrogen</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Canada%22">Canada</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Double-resonance excitation of molecular nitrogen, N2, via selected rotational levels of the , v′ = 0 state has been used to probe the first two bands in the new Ogawa series [M. Ogawa, Can. J. Phys. 42, 1087 (1964)], which lie above the first ionisation threshold of the molecule. These bands are rotationally unresolved in room-temperature and jet-cooled absorption spectra, but the double-resonance technique allows a rotational analysis and first confirmation of the assignment as transitions to n = 4 members of the (A2Πu)ndπ, v Rydberg series. In principle, the probe transition from the , v = 0 level to these Rydberg states corresponds to a two-electron transition, and this aspect of the results is explored. Finally, velocity map imaging allows a determination of the photoelectron branching fractions and angular distributions, providing insight into the electronic autoionisation dynamics. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Molecular Physics is the property of Taylor & Francis Ltd 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: 10.1080/00268976.2018.1544672 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 2930 Subjects: – SubjectFull: Rydberg states Type: general – SubjectFull: Photoelectrons Type: general – SubjectFull: Absorption spectra Type: general – SubjectFull: Nitrogen Type: general – SubjectFull: Canada Type: general Titles: – TitleFull: Double-resonance studies of electronically autoionizing states of molecular nitrogen. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sen, Ananya – PersonEntity: Name: NameFull: Pratt, S. T. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 00268976 Numbering: – Type: volume Value: 117 – Type: issue Value: 21 Titles: – TitleFull: Molecular Physics Type: main |
| ResultId | 1 |
