Guiding of elastic waves in a two-dimensional graded phononic crystal plate

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New Journal of Physics. 2017, 19, 013029. eISSN 1367-2630. Available under: doi: 10.1088/1367-2630/aa5703
Zusammenfassung

The guiding of elastic waves in a two-dimensional graded phononic crystal plate is investigated. This effect is induced by the resonance coupling of attachments and matrix in a silicon pillar-substrate system and the resonance frequencies of guided surface modes can be tuned by tailoring the geometry and material properties of the pillars. The resonance frequencies increase with radius and Young's modulus, and decrease with height and density of the pillars, which provides several possibilities for the guiding of elastic waves. These devices show the capability of spatially selecting different frequencies into designed channels, thus acting as a phononic multi-channel filter.

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530 Physik
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phononic crystal; elastic wave; local resonance
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ISO 690GUO, Yuning, Mike HETTICH, Thomas DEKORSY, 2017. Guiding of elastic waves in a two-dimensional graded phononic crystal plate. In: New Journal of Physics. 2017, 19, 013029. eISSN 1367-2630. Available under: doi: 10.1088/1367-2630/aa5703
BibTex
@article{Guo2017-01-24Guidi-37174,
  year={2017},
  doi={10.1088/1367-2630/aa5703},
  title={Guiding of elastic waves in a two-dimensional graded phononic crystal plate},
  volume={19},
  journal={New Journal of Physics},
  author={Guo, Yuning and Hettich, Mike and Dekorsy, Thomas},
  note={Article Number: 013029}
}
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