Transformation of acoustic waves in periodic metal grating sandwiched between piezoelectric and dielectric

  title={Transformation of acoustic waves in periodic metal grating sandwiched between piezoelectric and dielectric},
  author={Natalya F. Naumenko and B. P. Abbott},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
The mechanism of SAW transformation with variation of film thickness is investigated in a piezoelectric substrate with a metal grating overlaid by a dielectric film, via simulation and visualization of the acoustic fields. By way of example, two orientations of lithium niobate substrates are analyzed, YX-LN and 128°YX-LN, with a Cu grating and an isotropic silica glass overlay. The motions, which follow the wave propagation in the sagittal plane, are visualized within two periods of the grating… CONTINUE READING
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