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physics.app-ph2026

Single-Crystal AlN Wafer-Based Bulk Acoustic Resonators for Piezoelectric Power Conversion

Ziqian Yao, Clarissa Daniel, Kaicheng Pan +5

In this work, we demonstrate the first single-crystal aluminum nitride (AlN) wafer-based thickness-extensional (TE) mode bulk acoustic resonator for piezoelectric power conversion.…

physics.app-ph2025

Radial Mode Lithium Niobate Rosen Transformer

Ziqian Yao, Heather Chang, Eric Stolt +4

In this work, we demonstrate the first two-port radial-mode Rosen transformer based on 36Y-cut lithium niobate (LN) for piezoelectric power conversion. The device achieve…

physics.app-ph2025

Periodically Poled Piezoelectric Lithium Niobate Resonator for Piezoelectric Power Conversion

Ziqian Yao, Clarissa Daniel, Lezli Matto +8

As the demand for compact and efficient power conversion systems increases, piezoelectric power converters have gained attention for their ability to replace bulky magnetic inducto…

physics.app-ph2025

Lithium Tantalate Bulk Acoustic Resonator For Piezoelectric Power Conversion

Ziqian Yao, Clarissa Daniel, Eric Stolt +3

We present the first lithium tantalate (LT) thickness-extensional (TE) mode bulk acoustic resonators designed for piezoelectric power conversion, showcasing a low temperature coeff…

physics.app-ph2024

Lithium Niobate Resonators for Power Conversion: Spurious Mode Suppression Via an Active Ring

Vakhtang Chulukhadze, Eric Allen Stolt, Clarissa Daniel +2

In an effort to shift the paradigm of power conversion, acoustic resonators pose as compact alternatives for lossy magnetic inductors. Currently, the acoustic resonator's restricte…