{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/19740"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/19740","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Inter-Rydberg spectroscopy of argon and neon dimers","abstract":"Rydberg $\\gets$ Rydberg transitions of Ar$\\sb2$ and Ne$\\sb2$ have been observed for the first time by laser-excitation spectroscopy. Molecular Rydbergs converging to the $A\\sp2\\Sigma\\sbsp{1/2\\rm u}{+}$ ion core having principal quantum numbers as large as 26 for Ar$\\sb2$ and 17 for Ne$\\sb2$ have been observed despite the predissociative nature of the high-lying Ar$\\sb2$ and Ne$\\sb2$ Rydbergs. The most prominent Rydberg series have been identified as the np$\\pi\\sb{\\rm u}$ $\\gets$ ms$\\sigma\\sb{\\rm g}$ (Ar: m = 4, 5 $\\leq$ n $\\leq$ 26; Ne: m = 3, 4 $\\leq$ n $\\leq$ 17). The adiabatic ionization limits, relative to the lowest metastable state (4s$\\sigma\\sb{\\rm g}$(1$\\sb{\\rm u}$, 0$\\sbsp{\\rm u}{-}$) for Ar$\\sb2$, and 3s$\\sigma\\sb{\\rm g}\\sp3\\Sigma\\sbsp{\\rm u}{+}$ for Ne$\\sb2$), were also determined to be 29373 $\\pm$ 2 cm$\\sp{-1}$ for Ar$\\sb2$ and 34399 $\\pm$ 3 cm$\\sp{-1}$ for Ne$\\sb2$. The associated np$\\pi\\sb{\\rm u}$ $\\gets$ ms$\\sigma\\sb{\\rm g}$ (v$\\sp\\prime$, v$\\sp{\\prime\\prime}$) = (0, 1) Rydberg series has also been observed (Ar: m = 4, 5 $\\leq$ n $\\leq$ 10; Ne: m = 3, 4 $\\leq$ n $\\leq$ 7) with ionization limits of 29079 $\\pm$ 5 cm$\\sp{-1}$ for Ar$\\sb2$ and 33870 $\\pm$ 20 cm$\\sp{-1}$ for Ne$\\sb2$. Two more Rydberg series have been observed in Ar$\\sb2$ and assigned to be the np$\\sigma\\sb{\\rm u}$ and the nf$\\pi\\sb{\\rm u}$ with the same series limit as the np$\\pi\\sb{\\rm u}$ (29373 cm$\\sp{-1}$). Also, several of the Rydberg $\\gets$ Rydberg transitions in Ar$\\sb2$ and Ne$\\sb2$ have been rotationally resolved. This, to the knowledge of the author, is the first time any Rydberg $\\gets$ Rydberg transitions have been rotationally resolved in the rare gas dimers heavier than He$\\sb2$. Analysis of two of the bands indicate that B$\\sb0$ $\\simeq$ 0.17 cm$\\sp{-1}$ for Ar$\\sb2$4s$\\sigma\\sb{\\rm g}$(1$\\sb{\\rm u}$, 0$\\sbsp{\\rm u}{-}$) and B$\\sb0$ = 0.564 $\\pm$ 0.007 cm$\\sp{-1}$ for Ne$\\sb2$3s$\\sigma\\sb{\\rm g}\\sp3\\Sigma\\sbsp{\\rm u}{+}$. The photoionization cross section, as a function of wavelength, for the lowest metastable states have also been calculated from the data presented in this work.","abstract_html":"Rydberg $\\gets$ Rydberg transitions of Ar$\\sb2$ and Ne$\\sb2$ have been observed for the first time by laser-excitation spectroscopy. Molecular Rydbergs converging to the $A\\sp2\\Sigma\\sbsp{1/2\\rm u}{+}$ ion core having principal quantum numbers as large as 26 for Ar$\\sb2$ and 17 for Ne$\\sb2$ have been observed despite the predissociative nature of the high-lying Ar$\\sb2$ and Ne$\\sb2$ Rydbergs. The most prominent Rydberg series have been identified as the np<span class=\"etd-inline-math\">&pi;\\sb{\\rm u}</span> $\\gets$ ms<span class=\"etd-inline-math\">&sigma;\\sb{\\rm g}</span> (Ar: m = 4, 5 $\\leq$ n $\\leq$ 26; Ne: m = 3, 4 $\\leq$ n $\\leq$ 17). The adiabatic ionization limits, relative to the lowest metastable state (4s<span class=\"etd-inline-math\">&sigma;\\sb{\\rm g}</span>(1$\\sb{\\rm u}$, 0$\\sbsp{\\rm u}{-}$) for Ar$\\sb2$, and 3s<span class=\"etd-inline-math\">&sigma;\\sb{\\rm g}\\sp3\\Sigma\\sbsp{\\rm u}{+}</span> for Ne$\\sb2$), were also determined to be 29373 $\\pm$ 2 cm$\\sp{-1}$ for Ar$\\sb2$ and 34399 $\\pm$ 3 cm$\\sp{-1}$ for Ne$\\sb2$. The associated np<span class=\"etd-inline-math\">&pi;\\sb{\\rm u}</span> $\\gets$ ms<span class=\"etd-inline-math\">&sigma;\\sb{\\rm g}</span> (v$\\sp\\prime$, v$\\sp{\\prime\\prime}$) = (0, 1) Rydberg series has also been observed (Ar: m = 4, 5 $\\leq$ n $\\leq$ 10; Ne: m = 3, 4 $\\leq$ n $\\leq$ 7) with ionization limits of 29079 $\\pm$ 5 cm$\\sp{-1}$ for Ar$\\sb2$ and 33870 $\\pm$ 20 cm$\\sp{-1}$ for Ne$\\sb2$. Two more Rydberg series have been observed in Ar$\\sb2$ and assigned to be the np<span class=\"etd-inline-math\">&sigma;\\sb{\\rm u}</span> and the nf<span class=\"etd-inline-math\">&pi;\\sb{\\rm u}</span> with the same series limit as the np<span class=\"etd-inline-math\">&pi;\\sb{\\rm u}</span> (29373 cm$\\sp{-1}$). Also, several of the Rydberg $\\gets$ Rydberg transitions in Ar$\\sb2$ and Ne$\\sb2$ have been rotationally resolved. This, to the knowledge of the author, is the first time any Rydberg $\\gets$ Rydberg transitions have been rotationally resolved in the rare gas dimers heavier than He$\\sb2$. Analysis of two of the bands indicate that B$\\sb0$ $\\simeq$ 0.17 cm$\\sp{-1}$ for Ar$\\sb2$4s<span class=\"etd-inline-math\">&sigma;\\sb{\\rm g}</span>(1$\\sb{\\rm u}$, 0$\\sbsp{\\rm u}{-}$) and B$\\sb0$ = 0.564 $\\pm$ 0.007 cm$\\sp{-1}$ for Ne$\\sb2$3s<span class=\"etd-inline-math\">&sigma;\\sb{\\rm g}\\sp3\\Sigma\\sbsp{\\rm u}{+}</span>. The photoionization cross section, as a function of wavelength, for the lowest metastable states have also been calculated from the data presented in this work.","abstract_has_math":true,"creators":["Kane, Daniel James"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Eden, James G."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T12:17:02Z","date_published":"2011-05-07T12:17:02Z","updated_at":"2026-07-22T22:25:14Z","subjects":["Physics, Molecular"],"languages":["eng"],"rights":["Copyright 1989 Kane, Daniel James"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9010909","(UMI)AAI9010909"],"render_values":[{"text":"AAI9010909","href":null,"code":true},{"text":"(UMI)AAI9010909","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/19740","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Eden, James G."]},{"key":"dc:creator","label":"Author","values":["Kane, Daniel James"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T12:17:02Z","10000-01-01","1989"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Physics, Molecular"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1989 Kane, Daniel James"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9010909","(UMI)AAI9010909","http://hdl.handle.net/2142/19740"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Rydberg $\\gets$ Rydberg transitions of Ar$\\sb2$ and Ne$\\sb2$ have been observed for the first time by laser-excitation spectroscopy. Molecular Rydbergs converging to the $A\\sp2\\Sigma\\sbsp{1/2\\rm u}{+}$ ion core having principal quantum numbers as large as 26 for Ar$\\sb2$ and 17 for Ne$\\sb2$ have been observed despite the predissociative nature of the high-lying Ar$\\sb2$ and Ne$\\sb2$ Rydbergs. The most prominent Rydberg series have been identified as the np$\\pi\\sb{\\rm u}$ $\\gets$ ms$\\sigma\\sb{\\rm g}$ (Ar: m = 4, 5 $\\leq$ n $\\leq$ 26; Ne: m = 3, 4 $\\leq$ n $\\leq$ 17). The adiabatic ionization limits, relative to the lowest metastable state (4s$\\sigma\\sb{\\rm g}$(1$\\sb{\\rm u}$, 0$\\sbsp{\\rm u}{-}$) for Ar$\\sb2$, and 3s$\\sigma\\sb{\\rm g}\\sp3\\Sigma\\sbsp{\\rm u}{+}$ for Ne$\\sb2$), were also determined to be 29373 $\\pm$ 2 cm$\\sp{-1}$ for Ar$\\sb2$ and 34399 $\\pm$ 3 cm$\\sp{-1}$ for Ne$\\sb2$. The associated np$\\pi\\sb{\\rm u}$ $\\gets$ ms$\\sigma\\sb{\\rm g}$ (v$\\sp\\prime$, v$\\sp{\\prime\\prime}$) = (0, 1) Rydberg series has also been observed (Ar: m = 4, 5 $\\leq$ n $\\leq$ 10; Ne: m = 3, 4 $\\leq$ n $\\leq$ 7) with ionization limits of 29079 $\\pm$ 5 cm$\\sp{-1}$ for Ar$\\sb2$ and 33870 $\\pm$ 20 cm$\\sp{-1}$ for Ne$\\sb2$. Two more Rydberg series have been observed in Ar$\\sb2$ and assigned to be the np$\\sigma\\sb{\\rm u}$ and the nf$\\pi\\sb{\\rm u}$ with the same series limit as the np$\\pi\\sb{\\rm u}$ (29373 cm$\\sp{-1}$). Also, several of the Rydberg $\\gets$ Rydberg transitions in Ar$\\sb2$ and Ne$\\sb2$ have been rotationally resolved. This, to the knowledge of the author, is the first time any Rydberg $\\gets$ Rydberg transitions have been rotationally resolved in the rare gas dimers heavier than He$\\sb2$. Analysis of two of the bands indicate that B$\\sb0$ $\\simeq$ 0.17 cm$\\sp{-1}$ for Ar$\\sb2$4s$\\sigma\\sb{\\rm g}$(1$\\sb{\\rm u}$, 0$\\sbsp{\\rm u}{-}$) and B$\\sb0$ = 0.564 $\\pm$ 0.007 cm$\\sp{-1}$ for Ne$\\sb2$3s$\\sigma\\sb{\\rm g}\\sp3\\Sigma\\sbsp{\\rm u}{+}$. The photoionization cross section, as a function of wavelength, for the lowest metastable states have also been calculated from the data presented in this work.","Made available in DSpace on 2011-05-07T12:17:02Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9010909.pdf: 3669303 bytes, checksum: dbaee4f010851dce45f100c88fafa697 (MD5) Previous issue date: 1989","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:39:07Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:16:24-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"]},{"key":"dc:title","label":"Title","values":["Inter-Rydberg spectroscopy of argon and neon dimers"]}]}],"canonical_facts":{"dc:contributor":["Eden, James G."],"dc:creator":["Kane, Daniel James"],"dc:date":["2011-05-07T12:17:02Z","10000-01-01","1989"],"dc:description":["Rydberg $\\gets$ Rydberg transitions of Ar$\\sb2$ and Ne$\\sb2$ have been observed for the first time by laser-excitation spectroscopy. Molecular Rydbergs converging to the $A\\sp2\\Sigma\\sbsp{1/2\\rm u}{+}$ ion core having principal quantum numbers as large as 26 for Ar$\\sb2$ and 17 for Ne$\\sb2$ have been observed despite the predissociative nature of the high-lying Ar$\\sb2$ and Ne$\\sb2$ Rydbergs. The most prominent Rydberg series have been identified as the np$\\pi\\sb{\\rm u}$ $\\gets$ ms$\\sigma\\sb{\\rm g}$ (Ar: m = 4, 5 $\\leq$ n $\\leq$ 26; Ne: m = 3, 4 $\\leq$ n $\\leq$ 17). The adiabatic ionization limits, relative to the lowest metastable state (4s$\\sigma\\sb{\\rm g}$(1$\\sb{\\rm u}$, 0$\\sbsp{\\rm u}{-}$) for Ar$\\sb2$, and 3s$\\sigma\\sb{\\rm g}\\sp3\\Sigma\\sbsp{\\rm u}{+}$ for Ne$\\sb2$), were also determined to be 29373 $\\pm$ 2 cm$\\sp{-1}$ for Ar$\\sb2$ and 34399 $\\pm$ 3 cm$\\sp{-1}$ for Ne$\\sb2$. The associated np$\\pi\\sb{\\rm u}$ $\\gets$ ms$\\sigma\\sb{\\rm g}$ (v$\\sp\\prime$, v$\\sp{\\prime\\prime}$) = (0, 1) Rydberg series has also been observed (Ar: m = 4, 5 $\\leq$ n $\\leq$ 10; Ne: m = 3, 4 $\\leq$ n $\\leq$ 7) with ionization limits of 29079 $\\pm$ 5 cm$\\sp{-1}$ for Ar$\\sb2$ and 33870 $\\pm$ 20 cm$\\sp{-1}$ for Ne$\\sb2$. Two more Rydberg series have been observed in Ar$\\sb2$ and assigned to be the np$\\sigma\\sb{\\rm u}$ and the nf$\\pi\\sb{\\rm u}$ with the same series limit as the np$\\pi\\sb{\\rm u}$ (29373 cm$\\sp{-1}$). Also, several of the Rydberg $\\gets$ Rydberg transitions in Ar$\\sb2$ and Ne$\\sb2$ have been rotationally resolved. This, to the knowledge of the author, is the first time any Rydberg $\\gets$ Rydberg transitions have been rotationally resolved in the rare gas dimers heavier than He$\\sb2$. Analysis of two of the bands indicate that B$\\sb0$ $\\simeq$ 0.17 cm$\\sp{-1}$ for Ar$\\sb2$4s$\\sigma\\sb{\\rm g}$(1$\\sb{\\rm u}$, 0$\\sbsp{\\rm u}{-}$) and B$\\sb0$ = 0.564 $\\pm$ 0.007 cm$\\sp{-1}$ for Ne$\\sb2$3s$\\sigma\\sb{\\rm g}\\sp3\\Sigma\\sbsp{\\rm u}{+}$. The photoionization cross section, as a function of wavelength, for the lowest metastable states have also been calculated from the data presented in this work.","Made available in DSpace on 2011-05-07T12:17:02Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9010909.pdf: 3669303 bytes, checksum: dbaee4f010851dce45f100c88fafa697 (MD5) Previous issue date: 1989","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:39:07Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:16:24-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"],"dc:identifier":["AAI9010909","(UMI)AAI9010909","http://hdl.handle.net/2142/19740"],"dc:language":["eng"],"dc:rights":["Copyright 1989 Kane, Daniel James"],"dc:subject":["Physics, Molecular"],"dc:title":["Inter-Rydberg spectroscopy of argon and neon dimers"],"dc:type":["text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:14Z"}