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Refraction, beam splitting and dispersion of GHz surface acoustic waves by a phononic crystal
We exploit a time-resolved ultrafast optical technique to study the propagation of point-excited surface acoustic waves on a microscopic two-dimensional phononic crystal in the form of a square lattice of holes in a silicon substrate. Constant-frequency images and the dispersion relation are extract...
| Autores principales: | , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Elsevier
2023
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10026032/ https://www.ncbi.nlm.nih.gov/pubmed/36950517 http://dx.doi.org/10.1016/j.pacs.2023.100471 |