{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/80959"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/80959","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Design and Characterization of Quantum-Cascade Lasers","abstract":"From SIMS experiment, MBE-grown QCL structure exhibit high controllability and uniformity. The position of the PL peak is very close to the location predicted by our model. THz radiation from an MBE grown bound-to-continuum QCL is observed with the lasing wavelength of 104 mum. The light-current-voltage characteristics as well as the lasing spectrum are measured at different temperature. The characteristic temperature is extracted to be 144 K, while the quantum efficiency is found to be around 8-13% with the tunability of 2 nm/K. Both the lasing energy transition and the threshold current density are in good agreement with our calculation.","abstract_html":"From SIMS experiment, MBE-grown QCL structure exhibit high controllability and uniformity. The position of the PL peak is very close to the location predicted by our model. THz radiation from an MBE grown bound-to-continuum QCL is observed with the lasing wavelength of 104 mum. The light-current-voltage characteristics as well as the lasing spectrum are measured at different temperature. The characteristic temperature is extracted to be 144 K, while the quantum efficiency is found to be around 8-13% with the tunability of 2 nm/K. Both the lasing energy transition and the threshold current density are in good agreement with our calculation.","abstract_has_math":false,"creators":["Lerttamrab, Maytee"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical and Computer Engineering","degree_department":null,"school":null,"contributors":["Chuang, Shun-Lien"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T20:09:00Z","date_published":"2015-09-25T20:09:00Z","updated_at":"2026-07-22T22:26:15Z","subjects":["Engineering, Electronics and Electrical"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3223649"],"render_values":[{"text":"(MiAaPQ)AAI3223649","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/80959","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Chuang, Shun-Lien"]},{"key":"dc:creator","label":"Author","values":["Lerttamrab, Maytee"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T20:09:00Z","10000-01-01","2006"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical and Computer 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"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/80959","(MiAaPQ)AAI3223649"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["From SIMS experiment, MBE-grown QCL structure exhibit high controllability and uniformity. 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THz radiation from an MBE grown bound-to-continuum QCL is observed with the lasing wavelength of 104 mum. The light-current-voltage characteristics as well as the lasing spectrum are measured at different temperature. The characteristic temperature is extracted to be 144 K, while the quantum efficiency is found to be around 8-13% with the tunability of 2 nm/K. Both the lasing energy transition and the threshold current density are in good agreement with our calculation.","Made available in DSpace on 2015-09-25T20:09:00Z (GMT). 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