Buckling free and high optical quality factor large thin rib disk
| dc.contributor.author | Honari, Shahin | |
| dc.contributor.supervisor | Lu, Tao | |
| dc.date.accessioned | 2024-08-26T20:50:23Z | |
| dc.date.available | 2024-08-26T20:50:23Z | |
| dc.date.issued | 2024 | |
| dc.degree.department | Department of Electrical and Computer Engineering | |
| dc.degree.level | Doctor of Philosophy PhD | |
| dc.description.abstract | This thesis investigates the fabrication and characterization of Silica on Silicon (SoS) microcavities, for potential comb generation and sensing applications. In this thesis, novel approaches were introduced on silica-on-silicon microdisks to remove some of the inherent hurdles, namely mitigating the rough surface through chemo-mechanical polishing, and suppressing buckling-induced mechanical instability by introducing a rib disk structure. Quality factors as high as 10₈ were achieved for polished disks. Furthermore using the rib-disk structure, microdisks with thickness smaller than 1.5µm and quality factors as high as 10₇ materialized. By addressing these challenges we unleash the enormous potentials of ultra-high Q silica microdisks in microcomb generation in visible regime and sensing. Finally, a multi-transverse mode dense comb generation scheme on this platform is investigated. | |
| dc.description.scholarlevel | Graduate | |
| dc.identifier.uri | https://hdl.handle.net/1828/20308 | |
| dc.language | English | eng |
| dc.language.iso | en | |
| dc.rights | Available to the World Wide Web | |
| dc.title | Buckling free and high optical quality factor large thin rib disk | |
| dc.type | Thesis |