Surface acoustic wave-based resonators are sensitive probes of condensed matter systems, as well as surface-selective sensors for chemistry and biology. Surface acoustic wave devices have also been integrated into hybrid quantum systems with qubit platforms for applications in quantum information processing and sensing. The sensitivity of piezoelectric surface wave-based resonators to investigate these various systems can be enhanced by optimizing the device architecture and electrical measurement techniques. Alternatively, tailoring the spectral symmetry, arising from interference effects, offers a promising route to further improve sensitivity. In this work, we demonstrate the simultaneous introduction of both electromagnetic and acoustic Fano interference to shape the spectral response of GHz-frequency surface acoustic wave resonators. By systematically modifying the acoustic reflectivity of the resonators, we are able to isolate and analyze each interference mechanism independently. The broad range of temperature operation, from ambient to cryogenic temperatures highlights the potential for both classical and quantum sensing applications.
Surface acoustic wave (SAW) sensors, owing to their high operating frequencies, compatibility with planar micro-fabrication, and exceptional sensitivity to surface perturbations, are widely used in lab -on-a-chip and biomedical diagnostic applications. However, conventional SAW sensors operating in liquid environments...
Bowei Wu, Ting Ma, Hanbang Deng et al.· 0 citations
Recent research in optical, electromagnetic, and acoustical metamaterials has shown that spatiotemporal modulation of bulk properties and of interfaces between material domains can be used for unprecedented control of wave propagation and scattering. Spatiotemporal modulation of bulk properties has been used to enable...
B. T. Gilbert, B. Goldsberry, M. Haberman· Metamaterials· 0 citations
Understanding and controlling acoustic and spin-wave excitations in magnetic thin films is critical for the development of magnonic and spin-acoustic devices. We report on the use of Cr and W buffer layers to independently modify the acoustic and magnetic excitations in Co2FeGe full-Heusler thin films grown on MgO(001)...
A. Achuthan, A. Vovk, S. Bunyaev et al.· 0 citations
By combining theoretical, numerical, and experimental approaches, this study presents a comprehensive investigation into the transmission spectrum of a one-dimensional phononic crystal (PC) composed of periodically stacked glass coverslips separated by water layers. The results reveal bandgaps, defect states, and band...
We experimentally demonstrate frequency conversion based on a spoof-surface plasmon-polariton waveguide and microbridge resonator arrays integrated into the gap of a split-ring resonator array capacitively coupled to the waveguide. Frequency conversion was achieved by mixing the microwave carrier frequency with a modul...
M. Van Nguyen, T. Kodama, Nobuaki Kikuchi et al.· Japanese Journal of Applied...· 0 citations
Piezoelectric surface acoustic wave devices can drive charge carriers in semiconductors through the acoustoelectric effect, generating direct currents with potential applications in sensing and biomedicine. However, current sources based on this mechanism that combine nanoampere-level precision, a wide dynamic range,...
Yang Yuan, Sheng-Kuo Zhang, Ji-Kai Zhang et al.· Nature Communications· 0 citations
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