Fourier Analysis of Ultrafast Acoustic Waves in Thin Films

We analyzed a picosecond sonar signal from strain wave reflections in a thin-film stack. Fourier analysis revealed attenuation of acoustic frequencies above 0.2 THz. We discuss implications for spatial resolution in the experiment.

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Published
2025-01-01
DOI
https://doi.org/10.1364/oic.2025.ta.3
Primary Topic
Ultrasonics and Acoustic Wave Propagation
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article
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article

Fourier Analysis of Ultrafast Acoustic Waves in Thin Films

Karel Žídek, Vít Kanclíř, Václavík Jan, Petra Veselá et al.
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Ultrasonics and Acoustic Wave Propagation
article

Fourier Analysis of Ultrafast Acoustic Waves in Thin Films

Karel Žídek, Vít Kanclíř, Václavík Jan, Petra Veselá, Martina Hlubučková
article en

Abstract

We analyzed a picosecond sonar signal from strain wave reflections in a thin-film stack. Fourier analysis revealed attenuation of acoustic frequencies above 0.2 THz. We discuss implications for spatial resolution in the experiment.

Czech Academy of Sciences, Institute of Plasma Physics (CZ)
Openalex Percentile: Top 80%
Ultrasonics and Acoustic Wave Propagation
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Fourier Analysis of Ultrafast Acoustic Waves in Thin Films — Karel Žídek, Vít Kanclíř, et al. · (2025) | TGRS Research Map | TGRS