Fig. 2 | Nature Communications

Fig. 2

From: A highly attenuating and frequency tailorable annular hole phononic crystal for surface acoustic waves

Fig. 2

Simulated SAW transmission for novel annular holes and typical pillars. a Transmission vs. frequency for SAWs showing a deeper bandgap dip in transmission through 7 annular holes compared to 7 pillars. Inset schematic shows the PnC, interdigital transducer (IDT), LiNbO3 substrate and shaded perfectly matched layers (PML) of the simulation. b Bandgap transmission minimum for increasing number of elements in propagation direction with s.d. error bars

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