{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/16810"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/16810","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Atomic alkali lasers pumped by the dissociation of photoexcited alkali-rare gas collision pairs","abstract":"A new class of photoassociation lasers has been demonstrated in which photoexcited alkali-rare gas collision pairs dissociate in order to produce inversion on atomic alkali transitions. The pump acceptance bandwidths of these excimer bands, historically referred to as spectral satellites, have been observed to be as broad as 5 nm. This characteristic makes excimer-pumped alkali-vapor lasers (XPALs) attractive candidates for the spatial mode conversion of laser diode arrays with nominal linewidths of 2 nm in order to produce high quality (M2 1) beams. Quantum e ciencies exceeding 98% have been measured and may potentially mitigate heat extraction issues associated with high power, large volume lasers. XPALs operating on both the n2P1=2 ! n2S1=2 (D1) or n2P3=2 ! n2S1=2 (D2) transitions of Cs (n = 6) and Rb (n = 5) have been experimentally investigated and show promise for scaling to high power, diode pumped systems. Both semiclassical and quantum mechanical formulations of the free!free transitions which produce satellites are presented, culminating in an improved CsAr(B2 + 1=2) potential. A timedependent rate equation model is also described which clearly shows the validity and utility of employing the laser itself as a sensitive probe of the underlying photoassociation kinetics.","abstract_html":"A new class of photoassociation lasers has been demonstrated in which photoexcited alkali-rare gas collision pairs dissociate in order to produce inversion on atomic alkali transitions. The pump acceptance bandwidths of these excimer bands, historically referred to as spectral satellites, have been observed to be as broad as 5 nm. This characteristic makes excimer-pumped alkali-vapor lasers (XPALs) attractive candidates for the spatial mode conversion of laser diode arrays with nominal linewidths of 2 nm in order to produce high quality (M2 1) beams. Quantum e ciencies exceeding 98% have been measured and may potentially mitigate heat extraction issues associated with high power, large volume lasers. XPALs operating on both the n2P1=2 ! n2S1=2 (D1) or n2P3=2 ! n2S1=2 (D2) transitions of Cs (n = 6) and Rb (n = 5) have been experimentally investigated and show promise for scaling to high power, diode pumped systems. Both semiclassical and quantum mechanical formulations of the free!free transitions which produce satellites are presented, culminating in an improved CsAr(B2 + 1=2) potential. A timedependent rate equation model is also described which clearly shows the validity and utility of employing the laser itself as a sensitive probe of the underlying photoassociation kinetics.","abstract_has_math":false,"creators":["Readle, Jason D."],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical Engineering","degree_department":null,"school":null,"contributors":["Eden, James G.","Coleman, James J.","Lisy, James M.","Carney, Paul S.","Verdeyen, Joseph T."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2010,"date_issued":"2010-08-20T17:58:21Z","date_published":"2010-08-20T17:58:21Z","updated_at":"2026-07-22T22:25:09Z","subjects":["gas laser","atomic laser","alkali","rare-gas","excimer-pumped alkali-vapor lasers (XPAL)","Diode-Pumped Alkali Laser (DPAL)","satellite","photoassociation","collision pair","excimer","diode pumped","diode laser","free-free transitions"],"languages":["en"],"rights":["Copyright 2010 Jason D. Readle"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/16810","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Eden, James G.","Coleman, James J.","Lisy, James M.","Carney, Paul S.","Verdeyen, Joseph T."]},{"key":"dc:creator","label":"Author","values":["Readle, Jason D."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2010-08-20T17:58:21Z","2010-08"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical Engineering"]},{"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":["gas laser","atomic laser","alkali","rare-gas","excimer-pumped alkali-vapor lasers (XPAL)","Diode-Pumped Alkali Laser (DPAL)","satellite","photoassociation","collision pair","excimer","diode pumped","diode laser","free-free transitions"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2010 Jason D. Readle"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/16810"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["A new class of photoassociation lasers has been demonstrated in which photoexcited alkali-rare gas collision pairs dissociate in order to produce inversion on atomic alkali transitions. The pump acceptance bandwidths of these excimer bands, historically referred to as spectral satellites, have been observed to be as broad as 5 nm. This characteristic makes excimer-pumped alkali-vapor lasers (XPALs) attractive candidates for the spatial mode conversion of laser diode arrays with nominal linewidths of 2 nm in order to produce high quality (M2 1) beams. Quantum e ciencies exceeding 98% have been measured and may potentially mitigate heat extraction issues associated with high power, large volume lasers. XPALs operating on both the n2P1=2 ! n2S1=2 (D1) or n2P3=2 ! n2S1=2 (D2) transitions of Cs (n = 6) and Rb (n = 5) have been experimentally investigated and show promise for scaling to high power, diode pumped systems. Both semiclassical and quantum mechanical formulations of the free!free transitions which produce satellites are presented, culminating in an improved CsAr(B2 + 1=2) potential. A timedependent rate equation model is also described which clearly shows the validity and utility of employing the laser itself as a sensitive probe of the underlying photoassociation kinetics.","Item withdrawn by Alexis Thompson (athmpsn1@illinois.edu) on 2010-07-13T17:38:19Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Readle_Jason.tex: 142027 bytes, checksum: bb2ff3376ee7048155cb8c03069ec565 (MD5) Readle_Jason.pdf: 7924527 bytes, checksum: a4d6de831f3a0f3bcbf9cbf638c05eb6 (MD5)","Made available in DSpace on 2010-08-20T17:58:21Z (GMT). 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This characteristic makes excimer-pumped alkali-vapor lasers (XPALs) attractive candidates for the spatial mode conversion of laser diode arrays with nominal linewidths of 2 nm in order to produce high quality (M2 1) beams. Quantum e ciencies exceeding 98% have been measured and may potentially mitigate heat extraction issues associated with high power, large volume lasers. XPALs operating on both the n2P1=2 ! n2S1=2 (D1) or n2P3=2 ! n2S1=2 (D2) transitions of Cs (n = 6) and Rb (n = 5) have been experimentally investigated and show promise for scaling to high power, diode pumped systems. Both semiclassical and quantum mechanical formulations of the free!free transitions which produce satellites are presented, culminating in an improved CsAr(B2 + 1=2) potential. 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Readle"],"dc:subject":["gas laser","atomic laser","alkali","rare-gas","excimer-pumped alkali-vapor lasers (XPAL)","Diode-Pumped Alkali Laser (DPAL)","satellite","photoassociation","collision pair","excimer","diode pumped","diode laser","free-free transitions"],"dc:title":["Atomic alkali lasers pumped by the dissociation of photoexcited alkali-rare gas collision pairs"],"thesis:degree_discipline":["Electrical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:09Z"}