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

Bulk acoustic resonators support robust, long-lived mechanical modes, capableof coupling to various quantum systems. In separate works, such devices haveachieved strong coupling to both superconducting qubits, via piezoelectricity,and optical cavities, via Brillouin interactions. In this work, we present anovel hybrid microwave/optical platform capable of coupling to bulk acousticwaves through cavity-enhanced piezoelectric and photoelastic interactions. Themodular, tunable system achieves fully resonant and well-mode-matchedinteractions between a 3D microwave cavity, a high-frequency bulk acousticresonator, and a Fabry Perot cavity. We realize this piezo-Brillouininteraction in x-cut quartz, demonstrating the potential for strongoptomechanical interactions and high cooperativity using optical cavityenhancement. We further show how this device functions as a bidirectionalelectro-opto-mechanical transducer, with quantum efficiency exceeding$10^{-8}$, and a feasible path towards unity conversion efficiency. The highoptical sensitivity and ability to apply large resonant microwave field in thissystem also offers a new tool for probing anomalous electromechanicalcouplings, which we demonstrate by investigating (nominally-centrosymmetric)CaF$_2$ and revealing a parasitic piezoelectricity of 83 am/V. Such studies arean important topic for emerging quantum technologies, and highlight theversatility of this new hybrid platform.

Simultaneous Brillouin and piezoelectric coupling to a high-frequency bulk acoustic resonator