Photoionization of nS and nD Rydberg atoms of Rb and Cs from the near-infrared to the ultraviolet spectral region.

Bibliographic Details
Title:	Photoionization of nS and nD Rydberg atoms of Rb and Cs from the near-infrared to the ultraviolet spectral region.
Authors:	Viray, Michael A, Paradis, Eric, Raithel, Georg
Source:	New Journal of Physics; Jun2021, Vol. 23 Issue 6, p1-10, 10p
Subject Terms:	Photoionization, Rydberg states, Atomic physics, Rubidium, Cesium
Abstract:	We present calculations of the photoionization (PI) cross sections of rubidium and cesium Rydberg atoms for light with wavelengths ranging from the infrared to the ultraviolet, using model potentials from Marinescu et al (1994 Phys. Rev. A 49 982). The origins of pronounced PI minima are identified by investigating the free-electron wavefunctions. These include broad PI minima in the nS to ϵP PI channels of both Rb and Cs, with free-electron energy ϵ, which are identified as Cooper minima. Much narrower PI minima in the nD to ϵF channels are due to shape resonances of the free-electron states. We describe possible experimental procedures for measuring the PI minima, and we discuss their implications in fundamental atomic physics as well as in practical applications. Measurements of PI cross sections of Rydberg atoms may serve as a sensitive probe for many-electron interactions of the Rydberg electron in the atomic core region. [ABSTRACT FROM AUTHOR]
	Copyright of New Journal of 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:	Complementary Index

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Header	DbId: edb DbLabel: Complementary Index An: 151509129 RelevancyScore: 900 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 899.892578125
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Items	– Name: Title Label: Title Group: Ti Data: Photoionization of nS and nD Rydberg atoms of Rb and Cs from the near-infrared to the ultraviolet spectral region. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Viray%2C+Michael+A%22">Viray, Michael A</searchLink><br /><searchLink fieldCode="AR" term="%22Paradis%2C+Eric%22">Paradis, Eric</searchLink><br /><searchLink fieldCode="AR" term="%22Raithel%2C+Georg%22">Raithel, Georg</searchLink> – Name: TitleSource Label: Source Group: Src Data: New Journal of Physics; Jun2021, Vol. 23 Issue 6, p1-10, 10p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Photoionization%22">Photoionization</searchLink><br /><searchLink fieldCode="DE" term="%22Rydberg+states%22">Rydberg states</searchLink><br /><searchLink fieldCode="DE" term="%22Atomic+physics%22">Atomic physics</searchLink><br /><searchLink fieldCode="DE" term="%22Rubidium%22">Rubidium</searchLink><br /><searchLink fieldCode="DE" term="%22Cesium%22">Cesium</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We present calculations of the photoionization (PI) cross sections of rubidium and cesium Rydberg atoms for light with wavelengths ranging from the infrared to the ultraviolet, using model potentials from Marinescu et al (1994 Phys. Rev. A 49 982). The origins of pronounced PI minima are identified by investigating the free-electron wavefunctions. These include broad PI minima in the nS to ϵP PI channels of both Rb and Cs, with free-electron energy ϵ, which are identified as Cooper minima. Much narrower PI minima in the nD to ϵF channels are due to shape resonances of the free-electron states. We describe possible experimental procedures for measuring the PI minima, and we discuss their implications in fundamental atomic physics as well as in practical applications. Measurements of PI cross sections of Rydberg atoms may serve as a sensitive probe for many-electron interactions of the Rydberg electron in the atomic core region. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of New Journal of 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: 10.1088/1367-2630/ac00d5 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 1 Subjects: – SubjectFull: Photoionization Type: general – SubjectFull: Rydberg states Type: general – SubjectFull: Atomic physics Type: general – SubjectFull: Rubidium Type: general – SubjectFull: Cesium Type: general Titles: – TitleFull: Photoionization of nS and nD Rydberg atoms of Rb and Cs from the near-infrared to the ultraviolet spectral region. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Viray, Michael A – PersonEntity: Name: NameFull: Paradis, Eric – PersonEntity: Name: NameFull: Raithel, Georg IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 13672630 Numbering: – Type: volume Value: 23 – Type: issue Value: 6 Titles: – TitleFull: New Journal of Physics Type: main
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