Shahin Honari

MSc (University of Texas, 2018)
BSc (Sharif University of Technology, 2014)

Notice of the Final Oral Examination for the Degree of Doctor of Philosophy

Topic

Buckling Free and High Optical Quality Factor Large Thin Rib Disk

Department of Electrical and Computer Engineering

Date & location

Monday, August 12, 2024
10:00 A.M.
Virtual Defence

Reviewers

Supervisory Committee

Dr. Tao Lu, Department of Electrical and Computer Engineering, University of Victoria (Supervisor)
Dr. Chris Papadopoulos, Department of Electrical and Computer Engineering, UVic (Member)
Dr. Rodney Herring, Department of Mechanical Engineering, UVic (Outside Member)

External Examiner

Dr. Pablo Bianucci, Department of Physics, Concordia University

Chair of Oral Examination

Dr. Daniela Damian, Department of Computer Science, UVic

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. By addressing these challenges, we unleash the enormous potential 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.

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