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Integrated Devices for On-Chip Quantum Optics Open Access


Other title
Integrated Devices
Type of item
Degree grantor
University of Alberta
Author or creator
Potts, Clinton A
Supervisor and department
Davis, John (Department of Physics)
DeCorby, Ray (Department of Electrical and Computer Engineering)
Examining committee member and department
Davis, John (Department of Physics)
DeCorby, Ray (Department of Electrical and Computer Engineering)
Van, Vien (Department of Electrical and Computer Engineering)
LeBlanc, Lindsay (Department of Physics)
Department of Electrical and Computer Engineering
Photonics and Plasmas
Date accepted
Graduation date
2017-06:Spring 2017
Master of Science
Degree level
This thesis describes the fabrication and characterization of on-chip dome-shaped, Fabry-Perot microcavities for quantum-optics applications. Arrays of cavities were fabricated via a guided delamination buckling self-assembly process within SiO2/Ta2O5 multilayers. This process results in highly symmetric cavities, which exhibit minimal geometrical defects and a morphology that is well-described by elastic buckling theory. Optical measurements revealed reflection-limited finesse of ~3500, suggesting these cavities have few defects and exhibit low surface roughness. Furthermore, these cavities preferentially supported Laguerre-Gaussian modes as a result of the high degree of cylindrical symmetry. The viability of utilizing such cavities for cavity quantum electrodynamics application was theoretically examined using the extracted parameters. As a result of the small mode volume, these cavities were predicted to exhibit an exceptionally high atom-cavity coupling rate, g ~ 2pi x 1.1 GHz. However, the strong-coupling parameter g/kappa ~ 0.2 placed the as-fabricated cavities in the weakly coupled regime of cavity quantum electrodynamics. On the other hand, a single-atom cooperativity of ~30 was estimated, suggesting such cavities may be utilized to implement highly-efficient single-photon sources. Furthermore, the low mode-volume and potential for open-access suggests that these cavities have potential for diverse applications such as lab-on-chip sensing and implementation of dye-based lasers.
This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for the purpose of private, scholarly or scientific research. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
Citation for previous publication
CA Potts, A Melnyk, H Ramp, MH Bitarafan, D Vick, LJ LeBlanc, JP Davis,and RG DeCorby. Tunable open-access microcavities for on-chip cavity quantum electrodynamics.Applied Physics Letters, 108(4):041103, 2016

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File title: Integrated Devices for On-Chip Quantum Optics
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