Scanning X-ray diffraction microscopy of a 6 GHz surface acoustic wave

Surface acoustic waves at frequencies beyond a few GHz are promising components for quantum technology applications. Applying scanning X-ray diffraction microcopy we directly map the locally resolved components of the three-dimensional strain field generated by a standing surface acoustic wave on Ga...

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Bibliographic Details
Published in:arXiv.org 2022-09
Main Authors: Hanke, M, Ashurbekov, N, Zatterin, E, Msall, M E, Hellemann, J, Santos, P V, Schulli, T U, Ludwig, S
Format: Article
Language:English
Subjects:
Acoustic microscopy
Rayleigh waves
Surface acoustic waves
Wave diffraction
Wave propagation
X-ray diffraction
Online Access:Get full text
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Summary:Surface acoustic waves at frequencies beyond a few GHz are promising components for quantum technology applications. Applying scanning X-ray diffraction microcopy we directly map the locally resolved components of the three-dimensional strain field generated by a standing surface acoustic wave on GaAs with wavelength \(\lambda\simeq500\,\)nm corresponding to frequencies near 6 GHz. We find that the lattice distortions perpendicular to the surface are phase-shifted compared to those in propagation direction. Model calculations based on Rayleigh waves confirm our measurements. Our results represent a break through in providing a full characterization of a radio frequency surface acoustic wave beyond plain imaging.
ISSN:2331-8422
DOI:10.48550/arxiv.2209.13954