{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25322"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25322","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Highly excited states of atomic potassium in an external electric field","abstract":"The photoionization spectrum of potassium in an external electric field is examined. Detailed studies are made of the strengths, spacing, and polarization dependence of the quasi-bound Stark states lying above E = O. The results are interpreted as the first observation of electric field enhanced collisional depolarization by charged particles. This conclusion is supported by calculations indicating a depolarizing cross section as large as 10-5 cm2 for the conditions of the experiment.","abstract_html":"The photoionization spectrum of potassium in an external electric field is examined. Detailed studies are made of the strengths, spacing, and polarization dependence of the quasi-bound Stark states lying above E = O. The results are interpreted as the first observation of electric field enhanced collisional depolarization by charged particles. This conclusion is supported by calculations indicating a depolarizing cross section as large as 10-5 cm2 for the conditions of the experiment.","abstract_has_math":false,"creators":["Hillard, Grover Barry"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Nayfeh, Munir H."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-06-07T16:01:07Z","date_published":"2011-06-07T16:01:07Z","updated_at":"2026-07-22T22:25:24Z","subjects":["atomic potassium","photoionization spectrum","quasi-bound Stark states","electric field enhanced collision depolarization"],"languages":["en"],"rights":["1984 Grover Barry Hillard"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["1958414"],"render_values":[{"text":"1958414","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25322","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Nayfeh, Munir H."]},{"key":"dc:creator","label":"Author","values":["Hillard, Grover Barry"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-06-07T16:01:07Z","10000-01-01","1984"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation / Thesis","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."]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["atomic potassium","photoionization spectrum","quasi-bound Stark states","electric field enhanced collision depolarization"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1984 Grover Barry Hillard"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["1958414","http://hdl.handle.net/2142/25322"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The photoionization spectrum of potassium in an external electric field is examined. Detailed studies are made of the strengths, spacing, and polarization dependence of the quasi-bound Stark states lying above E = O. The results are interpreted as the first observation of electric field enhanced collisional depolarization by charged particles. This conclusion is supported by calculations indicating a depolarizing cross section as large as 10-5 cm2 for the conditions of the experiment.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-07T16:01:07Z No. of bitstreams: 1 1984_hillard.pdf: 3121512 bytes, checksum: eef9829ae64b74806c1bfcd7d750f20a (MD5)","Made available in DSpace on 2011-06-07T16:01:07Z (GMT). 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The results are interpreted as the first observation of electric field enhanced collisional depolarization by charged particles. This conclusion is supported by calculations indicating a depolarizing cross section as large as 10-5 cm2 for the conditions of the experiment.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-07T16:01:07Z No. of bitstreams: 1 1984_hillard.pdf: 3121512 bytes, checksum: eef9829ae64b74806c1bfcd7d750f20a (MD5)","Made available in DSpace on 2011-06-07T16:01:07Z (GMT). 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