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Updated: Jan 22, 2026

Fabrication of Silica Ultra High Quality Factor Microresonators
Published on: July 2, 2012
Cylindrical Fused Silica Resonators Driven by PZT Thin Film Electrodes with Q Factor Achieving 2.89 Million after
Yiming Luo1, Tianliang Qu2, Yan Cui3
1College of Advanced Interdisciplinary Studies, National University of Defense Technology, 410073, Changsha, China.
Abstract:
Cylindrical shell fused silica resonators coated with 8 axisymmetric Pb(Zr0.53Ti0.47)O3 (PZT) thin film electrodes (thickness ~2 μm) were reported. The resonators were firstly designed and fabricated, then annealed and processed by chemical etching to increase mechanical quality factor (Q factor) of resonators, which achieved as high as 2.89 million for n = 2 wineglass modes after being coated with PZT thin film electrodes. The n = 2 wineglass modes of the resonators were driven by PZT thin film electrodes in experiment and simulation with fine vibratory shape, which demonstrated the feasibility of the cylindrical fused silica resonator driven by PZT thin film electrodes. The application of PZT thin film electrodes to drive and detect cylindrical shell fused silica resonator can significantly improve Q factor of resonators and improve the sensitivity of Coriolis Vibratory Gyroscope (CVG).
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