Fig. 3: Experimental results for the generation of different high-frequency surface acoustic wave (SAW) energy beams on piezoelectric chips. | Nature Communications

Fig. 3: Experimental results for the generation of different high-frequency surface acoustic wave (SAW) energy beams on piezoelectric chips.

From: On-chip phased interdigital metamaterials enable versatile manipulation of surface acoustic waves, microfluids, and micro/nano-objects

Fig. 3: Experimental results for the generation of different high-frequency surface acoustic wave (SAW) energy beams on piezoelectric chips.The alternative text for this image may have been generated using AI.

a−d Exact electrode configurations of the used phased interdigital metamaterials (PIMs). e−h Experimentally acquired on-chip SAW fields at different times after excitation. i−l, left SAW energy fields simulated by our analytical model. i−l, right SAW energy fields experimentally acquired by a laser Doppler vibrometer. m−p Wavenumber spectra of generated SAW fields. The white curves represent the theoretical wavenumber contour at 18.8 MHz. The first to fourth columns show the results of generating a long SAW jet near a PIM, a long SAW jet far from a PIM, an off-center SAW jet, and twin jets, respectively.

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