{"id":{"repo_id":"buffalo","oai_identifier":"oai:ubir.buffalo.edu:10477/86434"},"canonical_url":"https://search.dev.ndltd.org/etd/buffalo/oai:ubir.buffalo.edu:10477/86434","repository":{"repo_id":"buffalo","name":"Buffalo","base_url":"https://ubir.buffalo.edu/oai/request"},"display":{"title":"Versatile On-Chip Photonic Devices Inspired by Quantum Symmetry","abstract":"Ph.D.","abstract_html":"Ph.D.","abstract_has_math":false,"creators":["Pan, Mingsen; 0000-0002-9316-3858"],"institution":"State University of New York at Buffalo","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Feng, Liang","Electrical Engineering"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-02-21T17:22:23Z","date_published":"2025-02-21T17:22:23Z","updated_at":"2026-07-27T19:05:32Z","subjects":["electrical engineering","optics","physics"],"languages":["eng"],"rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10477/86434","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Feng, Liang","Electrical Engineering"]},{"key":"dc:creator","label":"Author","values":["Pan, Mingsen; 0000-0002-9316-3858"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-02-21T17:22:23Z","2020"]},{"key":"dc:publisher","label":"Institution","values":["State University of New York at Buffalo"]},{"key":"dc:type","label":"Dc Type","values":["Text","Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["electrical engineering","optics","physics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/10477/86434"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Ph.D.","Manipulation of light transport in the photonic devices serves as a basic demand for the fast operation of integrated photonics circuits. Optical signals in these devices are generally vulnerable to manufacturing imperfection and ambient randomness. The research on the robust light transport against such perturbations has become one focus in recent decades. Consequently, the conductive states at an interface of two media of topologically distinct symmetries are intensively investigated for their protected surface conduction and robustness against random perturbations. However, the unfortunate lack of tunability in topological photonic devices remains to be one of the major challenges for vast applications in the integrated photonics, because the propagation of light is only guided in a predesigned interface which cannot be modified after microelectronics fabrications. The aim of this dissertation is to tackle the obstacles on the more tunable photonic implementations of these symmetry-protected quantum states. We present a flexible topological photonic lattice that realizes multiple topologically nontrivial dispersion bands and multiple topological states with enriched topological features. Further, assisted by non-Hermitian engineering, we demonstrate a robust photonic zero mode sustained by a spatial quantum phase transition in a parity-time (PT) symmetric lattice, despite the same topological order across the entire system. These works equip topological photonics models with flexible creation and manipulation of protected topological states, enriched edge dynamics, and non-Hermitian-enhanced photonic zero modes. Our strategic manipulation of phase transition provides a novel route toward versatile functionalities and enriched physics in the field of nanophotonics and beyond.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Versatile On-Chip Photonic Devices Inspired by Quantum Symmetry"]}]}],"canonical_facts":{"dc:contributor":["Feng, Liang","Electrical Engineering"],"dc:creator":["Pan, Mingsen; 0000-0002-9316-3858"],"dc:date":["2025-02-21T17:22:23Z","2020"],"dc:description":["Ph.D.","Manipulation of light transport in the photonic devices serves as a basic demand for the fast operation of integrated photonics circuits. Optical signals in these devices are generally vulnerable to manufacturing imperfection and ambient randomness. The research on the robust light transport against such perturbations has become one focus in recent decades. Consequently, the conductive states at an interface of two media of topologically distinct symmetries are intensively investigated for their protected surface conduction and robustness against random perturbations. However, the unfortunate lack of tunability in topological photonic devices remains to be one of the major challenges for vast applications in the integrated photonics, because the propagation of light is only guided in a predesigned interface which cannot be modified after microelectronics fabrications. The aim of this dissertation is to tackle the obstacles on the more tunable photonic implementations of these symmetry-protected quantum states. We present a flexible topological photonic lattice that realizes multiple topologically nontrivial dispersion bands and multiple topological states with enriched topological features. Further, assisted by non-Hermitian engineering, we demonstrate a robust photonic zero mode sustained by a spatial quantum phase transition in a parity-time (PT) symmetric lattice, despite the same topological order across the entire system. These works equip topological photonics models with flexible creation and manipulation of protected topological states, enriched edge dynamics, and non-Hermitian-enhanced photonic zero modes. Our strategic manipulation of phase transition provides a novel route toward versatile functionalities and enriched physics in the field of nanophotonics and beyond.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/10477/86434"],"dc:language":["eng"],"dc:publisher":["State University of New York at Buffalo"],"dc:rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"dc:subject":["electrical engineering","optics","physics"],"dc:title":["Versatile On-Chip Photonic Devices Inspired by Quantum Symmetry"],"dc:type":["Text","Dissertation"]},"updated_at":"2026-07-27T19:05:32Z"}