{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/110858"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/110858","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"High quality integrated LiNbO3 acousto-optic platform for visible light spectrum","abstract":"The laser's invention, which produced a coherent light source, has accelerated the development of acousto-optic platforms (AlN, GaN, Quartz, LiNbO3) for many practical applications such as beam steering, signal processing, and intensity modulation. The recent integration of on-chip acousto-optic devices with photonic integrated circuits lead to many different acousto-optic devices such as efficient microwave converters, optical isolators, and wavelength scale acousto-optic frequency shifters, which were not realizable before. However, all of these devices target the 1550 nm optical wavelength or mid IR spectrum, and there is no integrated acousto-optic platform for visible wavelengths to the best of our knowledge. This thesis proposes that a LiNbO3 platform can produce a high acousto-optic coupling rate that can be used as a microwave to optical conversion. To have high coupling, we utilized LiNbO3's ultra-high electromechanical coupling for S0 lamb wave mode excitation. We employed LiNbO3's ultra-low optical loss as an interaction enhancement between light and sound for our resonator structures. Our results revealed that intra-band/inter-band optical scattering in LiNbO3 is strongly enhanced by its large piezoelectric, photoelastic, and electro-optic coefficients leading to efficient sideband generation.","abstract_html":"The laser's invention, which produced a coherent light source, has accelerated the development of acousto-optic platforms (AlN, GaN, Quartz, LiNbO3) for many practical applications such as beam steering, signal processing, and intensity modulation. The recent integration of on-chip acousto-optic devices with photonic integrated circuits lead to many different acousto-optic devices such as efficient microwave converters, optical isolators, and wavelength scale acousto-optic frequency shifters, which were not realizable before. However, all of these devices target the 1550 nm optical wavelength or mid IR spectrum, and there is no integrated acousto-optic platform for visible wavelengths to the best of our knowledge. This thesis proposes that a LiNbO3 platform can produce a high acousto-optic coupling rate that can be used as a microwave to optical conversion. To have high coupling, we utilized LiNbO3's ultra-high electromechanical coupling for S0 lamb wave mode excitation. We employed LiNbO3's ultra-low optical loss as an interaction enhancement between light and sound for our resonator structures. Our results revealed that intra-band/inter-band optical scattering in LiNbO3 is strongly enhanced by its large piezoelectric, photoelastic, and electro-optic coefficients leading to efficient sideband generation.","abstract_has_math":false,"creators":["Orsel, Ogulcan Emre"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Bahl, Gaurav"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021-09-17T04:06:53Z","date_published":"2021-09-17T04:06:53Z","updated_at":"2026-07-22T22:24:52Z","subjects":["Integrated photonics, acousto-optics, electro-optics, nonlinear photonics"],"languages":["en"],"rights":["Copyright 2021 Ogulcan Emre Orsel"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/110858","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Bahl, Gaurav"]},{"key":"dc:creator","label":"Author","values":["Orsel, Ogulcan Emre"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2021-09-17T04:06:53Z","2023-09-17T04:07:01Z","2021-04-28","2021-05"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"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":["Integrated photonics, acousto-optics, electro-optics, nonlinear photonics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2021 Ogulcan Emre Orsel"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/110858"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The laser's invention, which produced a coherent light source, has accelerated the development of acousto-optic platforms (AlN, GaN, Quartz, LiNbO3) for many practical applications such as beam steering, signal processing, and intensity modulation. The recent integration of on-chip acousto-optic devices with photonic integrated circuits lead to many different acousto-optic devices such as efficient microwave converters, optical isolators, and wavelength scale acousto-optic frequency shifters, which were not realizable before. However, all of these devices target the 1550 nm optical wavelength or mid IR spectrum, and there is no integrated acousto-optic platform for visible wavelengths to the best of our knowledge. This thesis proposes that a LiNbO3 platform can produce a high acousto-optic coupling rate that can be used as a microwave to optical conversion. To have high coupling, we utilized LiNbO3's ultra-high electromechanical coupling for S0 lamb wave mode excitation. We employed LiNbO3's ultra-low optical loss as an interaction enhancement between light and sound for our resonator structures. Our results revealed that intra-band/inter-band optical scattering in LiNbO3 is strongly enhanced by its large piezoelectric, photoelastic, and electro-optic coefficients leading to efficient sideband generation.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-05-01","The student, Ogulcan Orsel, accepted the attached license on 2021-04-26 at 13:12.","The student, Ogulcan Orsel, submitted this Thesis for approval on 2021-04-26 at 13:22.","This Thesis was approved for publication on 2021-04-28 at 11:17.","DSpace SAF Submission Ingestion Package generated from Vireo submission #16559 on 2021-09-16 at 20:14:19","Made available in DSpace on 2021-09-17T04:06:53Z (GMT). No. of bitstreams: 2 ORSEL-THESIS-2021.pdf: 10307498 bytes, checksum: f26f66d6ba8e59e6710b44fbd7f5fa8f (MD5) LICENSE.txt: 4210 bytes, checksum: adee63cdc40ec05b9b4ba134fe918fb8 (MD5) Previous issue date: 2021-04-28","Embargo set by: Seth Robbins for item 118704 Lift date: 2023-09-17T04:07:01Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Author requested closed access (OA after 2yrs) in Vireo ETD system","Limited"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["High quality integrated LiNbO3 acousto-optic platform for visible light spectrum"]}]}],"canonical_facts":{"dc:contributor":["Bahl, Gaurav"],"dc:creator":["Orsel, Ogulcan Emre"],"dc:date":["2021-09-17T04:06:53Z","2023-09-17T04:07:01Z","2021-04-28","2021-05"],"dc:description":["The laser's invention, which produced a coherent light source, has accelerated the development of acousto-optic platforms (AlN, GaN, Quartz, LiNbO3) for many practical applications such as beam steering, signal processing, and intensity modulation. The recent integration of on-chip acousto-optic devices with photonic integrated circuits lead to many different acousto-optic devices such as efficient microwave converters, optical isolators, and wavelength scale acousto-optic frequency shifters, which were not realizable before. However, all of these devices target the 1550 nm optical wavelength or mid IR spectrum, and there is no integrated acousto-optic platform for visible wavelengths to the best of our knowledge. This thesis proposes that a LiNbO3 platform can produce a high acousto-optic coupling rate that can be used as a microwave to optical conversion. To have high coupling, we utilized LiNbO3's ultra-high electromechanical coupling for S0 lamb wave mode excitation. We employed LiNbO3's ultra-low optical loss as an interaction enhancement between light and sound for our resonator structures. Our results revealed that intra-band/inter-band optical scattering in LiNbO3 is strongly enhanced by its large piezoelectric, photoelastic, and electro-optic coefficients leading to efficient sideband generation.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-05-01","The student, Ogulcan Orsel, accepted the attached license on 2021-04-26 at 13:12.","The student, Ogulcan Orsel, submitted this Thesis for approval on 2021-04-26 at 13:22.","This Thesis was approved for publication on 2021-04-28 at 11:17.","DSpace SAF Submission Ingestion Package generated from Vireo submission #16559 on 2021-09-16 at 20:14:19","Made available in DSpace on 2021-09-17T04:06:53Z (GMT). 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