Fig. 3: Strain imaging of acoustic response at 333 MHz and 342 MHz. | Nature Communications

Fig. 3: Strain imaging of acoustic response at 333 MHz and 342 MHz.

From: High-resolution high-throughput spatiotemporal strain imaging reveals loss mechanisms in a surface acoustic wave device

Fig. 3

a Strain map of the surface acoustic wave device at t = 144 ns and an excitation frequency of 333 MHz. The resonator is at the lower left corner of the imaged area, in the region of positive Z and negative X. The top reflector occupies the region of negative Z and negative X. The bus bar is in the region with X  > 0. The scale bar is 50 μm. b Primary excitation from t = 141.6 to 144.6 ns. The X position at which the time-resolved data was extracted is indicated by the red arrow. The spatiotemporal strain map in (b) spans the same range in Z as the map in (a). c Parasitic excitation from t = 141.6 to 144.6 ns. The Z position at which the time-resolved data was extracted is indicated by the blue arrow. The spatiotemporal strain map in (c) shares the same X coordinates as (a). d Strain map of the surface acoustic wave device at t = 140 ns and an excitation frequency of 342 MHz. e Primary excitation from t = 140 to 143 ns. The X position at which the time-resolved data was extracted is indicated by the red arrow. The spatiotemporal strain map in (e) spans the same range in Z as the map in (d). f Parasitic excitation from t = 140 to 143 ns. The Z position at which the time-resolved data was extracted is indicated by the blue arrow. The spatiotemporal strain map in (f) spans the same range in X as the map in (d).

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