Research Talks
Superconducting Whispering Gallery Mode Resonators
A short conference talk on whispering-gallery-mode resonators formed by stacked thin-film aluminum rings on sapphire. It identifies differential and common modes, reports high internal quality factors and long energy relaxation at single-photon powers, and uses temperature-dependent frequency shifts with field participation ratios to bound film and dielectric losses.
- Motivation: combining wafer scalability with 3D-cavity quality, and testing materials at single-photon level
- Differential vs. common modes, with most field energy in vacuum for the differential mode
- Measured internal Q of about 3.4×10^6 and T1 of about 180 µs for one mode
- Bounds on aluminum surface resistance and sapphire loss tangent; plans for qubit integration
Summary and key points drafted by a language model from the slides, not yet reviewed by me. The slides are the source.
Cite
@misc{minev2013superconductingwhispering,
author = {Zlatko K. Minev},
title = {{Superconducting Whispering Gallery Mode Resonators}},
howpublished = {Talk, APS March Meeting},
year = {2013},
url = {https://zlatko-minev.github.io/zlatko-minev-quantum-repository/items/2013-superconducting-whispering-gallery-mode-resonators/},
note = {Slides}
}Reuse
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