{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/21660"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/21660","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"The growth of aluminum gallium arsenide/gallium arsenide graded barrier quantum well heterostructure lasers on planar and nonplanar substrates by metalorganic chemical vapor deposition","abstract":"Metalorganic chemical vapor deposition (MOCVD) is a crystal growth technique which has demonstrated the capacity to deposit epitaxial layers possessing the high levels of crystalline quality and material purity required for the fabrication of state of the art devices in a variety of material systems. In this work, the MOCVD process and reactor design and operation are discussed in detail. Variations in material quality as a function of MOCVD growth parameters and the associated ramifications when applied to the growth of laser structures are also analyzed.","abstract_html":"Metalorganic chemical vapor deposition (MOCVD) is a crystal growth technique which has demonstrated the capacity to deposit epitaxial layers possessing the high levels of crystalline quality and material purity required for the fabrication of state of the art devices in a variety of material systems. In this work, the MOCVD process and reactor design and operation are discussed in detail. Variations in material quality as a function of MOCVD growth parameters and the associated ramifications when applied to the growth of laser structures are also analyzed.","abstract_has_math":false,"creators":["Givens, Michael Eugene"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical Engineering","degree_department":null,"school":null,"contributors":["Coleman, James J."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T13:15:19Z","date_published":"2011-05-07T13:15:19Z","updated_at":"2026-07-22T22:25:18Z","subjects":["Engineering, Electronics and Electrical"],"languages":["eng"],"rights":["Copyright 1992 Givens, Michael Eugene"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9215815","(UMI)AAI9215815"],"render_values":[{"text":"AAI9215815","href":null,"code":true},{"text":"(UMI)AAI9215815","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/21660","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Coleman, James J."]},{"key":"dc:creator","label":"Author","values":["Givens, Michael Eugene"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T13:15:19Z","10000-01-01","1992"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"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":["Engineering, Electronics and Electrical"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1992 Givens, Michael Eugene"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9215815","(UMI)AAI9215815","http://hdl.handle.net/2142/21660"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Metalorganic chemical vapor deposition (MOCVD) is a crystal growth technique which has demonstrated the capacity to deposit epitaxial layers possessing the high levels of crystalline quality and material purity required for the fabrication of state of the art devices in a variety of material systems. In this work, the MOCVD process and reactor design and operation are discussed in detail. Variations in material quality as a function of MOCVD growth parameters and the associated ramifications when applied to the growth of laser structures are also analyzed.","Underlying principles, fabrication, and experimental operational characteristics of a nonplanar laser array structure grown on a periodically corrugated substrate are presented. These structures are desirable due to their ease of fabrication and demonstrated potential for use in high power applications. A self-consistent two-dimensional theoretical model which accurately describes the operational physics of these nonplanar arrays is also developed.","Design, optimization, and underlying physics of a sophisticated quantum well laser structure, the separate confinement heterostructure quantum well laser, is considered. The capability to realize low threshold devices having both indirect and direct barrier layers is demonstrated and a set of basic structural design rules aimed at the achievement of minimal threshold current density in single quantum well devices is presented.","Made available in DSpace on 2011-05-07T13:15:19Z (GMT). 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