English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Low phase noise MEMS oscillators necessitate resonators with high f-Q.Resonators achieving high f-Q (mechanical frequency-quality factor product)close to the thermo-elastic damping (TED) limit have been demonstrated atexpense of feed-through. Here we present a study comparing frequency scaling ofquality factors of wineglass and radial modes in a ring resonator using anopto-mechanical two port transmission measurement. Higher harmonics of thewineglass mode show an increasing trend in the f-Q product, as compared to asaturation of f-Q for radial modes. The measured f-Q of 5.11e13Hz at 9.82GHz inair at room temperature for a wineglass mode is close to the highest measuredvalues in silicon resonators.

Comparison of f-Q scaling in wineglass and radial modes in ring resonators