{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/32042"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/32042","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Metal-cavity surface-emitting nanolasers","abstract":"Metal-cavity surface-emitting micro/nanolasers are proposed and demonstrated. The design uses metals as both the cavity sidewall and the top/bottom reflectors and maintains the surface-emitting nature. As a result of the large permittivity contrast between the dielectric and metal, the optical energy can be well-confined inside the metal nanocavity. Flip-bonding the device to a silicon substrate with a conductive metal provides efficient heat removal. Several excellent performance characteristics have been observed such as ultra-narrow linewidth, low thermal impedance, and circular beam shapes. The devices proposed and realized are substrate-free with transferability to other platforms. The size of the proposed structure can be further reduced without severe degradation in the performance. This work provides a detailed theoretical model starting from the waveguide analysis to full structure simulations by taking into account both the geometry and the metal dispersion. Several substrate-free metal-cavity surface emitters are demonstrated. Advanced metal-cavity surface-emitting microlasers with submonolayer quantum dots are used as the active medium. Fabrication and experimental data are reported for electrical injection metal-cavity quantum-dot surface-emitting microlasers at room temperature. Detailed studies are conducted of size-dependent cavity modes for future size reduction. This thesis presents the accomplishment of the first room temperature metal-cavity surface-emitting microlaser with the best performance among the existing metal-cavity lasers. A further size reduction strategy for future work will be discussed and analyzed theoretically.","abstract_html":"Metal-cavity surface-emitting micro/nanolasers are proposed and demonstrated. The design uses metals as both the cavity sidewall and the top/bottom reflectors and maintains the surface-emitting nature. As a result of the large permittivity contrast between the dielectric and metal, the optical energy can be well-confined inside the metal nanocavity. Flip-bonding the device to a silicon substrate with a conductive metal provides efficient heat removal. Several excellent performance characteristics have been observed such as ultra-narrow linewidth, low thermal impedance, and circular beam shapes. The devices proposed and realized are substrate-free with transferability to other platforms. The size of the proposed structure can be further reduced without severe degradation in the performance. This work provides a detailed theoretical model starting from the waveguide analysis to full structure simulations by taking into account both the geometry and the metal dispersion. Several substrate-free metal-cavity surface emitters are demonstrated. Advanced metal-cavity surface-emitting microlasers with submonolayer quantum dots are used as the active medium. Fabrication and experimental data are reported for electrical injection metal-cavity quantum-dot surface-emitting microlasers at room temperature. Detailed studies are conducted of size-dependent cavity modes for future size reduction. This thesis presents the accomplishment of the first room temperature metal-cavity surface-emitting microlaser with the best performance among the existing metal-cavity lasers. A further size reduction strategy for future work will be discussed and analyzed theoretically.","abstract_has_math":false,"creators":["Lu, Chien-Yao"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Goddard, Lynford L.","Leburton, Jean-Pierre","Chuang, Shun-Lien","Eckstein, James N."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-06-27T21:30:05Z","date_published":"2012-06-27T21:30:05Z","updated_at":"2026-07-22T22:25:30Z","subjects":["metal-cavity","Vertical-cavity surface-emitting lasers (VCSEL)","semiconductor laser"],"languages":["en"],"rights":["Copyright 2012 Chien-Yao Lu"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/32042","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Goddard, Lynford L.","Leburton, Jean-Pierre","Chuang, Shun-Lien","Eckstein, James N."]},{"key":"dc:creator","label":"Author","values":["Lu, Chien-Yao"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2012-06-27T21:30:05Z","2014-06-28T10:00:27Z","2012-05"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"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":["metal-cavity","Vertical-cavity surface-emitting lasers (VCSEL)","semiconductor laser"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2012 Chien-Yao Lu"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/32042"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Metal-cavity surface-emitting micro/nanolasers are proposed and demonstrated. 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Advanced metal-cavity surface-emitting microlasers with submonolayer quantum dots are used as the active medium. Fabrication and experimental data are reported for electrical injection metal-cavity quantum-dot surface-emitting microlasers at room temperature. Detailed studies are conducted of size-dependent cavity modes for future size reduction. This thesis presents the accomplishment of the first room temperature metal-cavity surface-emitting microlaser with the best performance among the existing metal-cavity lasers. A further size reduction strategy for future work will be discussed and analyzed theoretically.","Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-04-06T18:17:21Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 PhD Dissertation-cylu-uploaded.zip: 7609643 bytes, checksum: adc38878045f21d8c2ce2153e6a9761d (MD5) Lu_Chien-Yao.pdf: 10320486 bytes, checksum: 2b561845b127a90c056736f49c915b9b (MD5)","Made available in DSpace on 2012-06-27T21:30:05Z (GMT). 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Advanced metal-cavity surface-emitting microlasers with submonolayer quantum dots are used as the active medium. Fabrication and experimental data are reported for electrical injection metal-cavity quantum-dot surface-emitting microlasers at room temperature. Detailed studies are conducted of size-dependent cavity modes for future size reduction. This thesis presents the accomplishment of the first room temperature metal-cavity surface-emitting microlaser with the best performance among the existing metal-cavity lasers. A further size reduction strategy for future work will be discussed and analyzed theoretically.","Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-04-06T18:17:21Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 PhD Dissertation-cylu-uploaded.zip: 7609643 bytes, checksum: adc38878045f21d8c2ce2153e6a9761d (MD5) Lu_Chien-Yao.pdf: 10320486 bytes, checksum: 2b561845b127a90c056736f49c915b9b (MD5)","Made available in DSpace on 2012-06-27T21:30:05Z (GMT). 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