Interaction of a contact resonance of microspheres with surface acoustic waves.

@article{Boechler2013InteractionOA,
  title={Interaction of a contact resonance of microspheres with surface acoustic waves.},
  author={N. Boechler and J. Eliason and A. Kumar and A. Maznev and K. Nelson and N. Fang},
  journal={Physical review letters},
  year={2013},
  volume={111 3},
  pages={
          036103
        }
}
We study the interaction of surface acoustic waves (SAWs) with a contact-based vibrational resonance of 1 μm silica microspheres forming a two-dimensional granular crystal adhered to a substrate. The laser-induced transient grating technique is used to excite SAWs and measure their dispersion. The measured dispersion curves exhibit "avoided crossing" behavior due to the hybridization of the SAWs with the microsphere resonance. We compare the measured dispersion curves with those predicted by… Expand
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