Generation and control of sound bullets with a nonlinear acoustic lens

@article{Spadoni2010GenerationAC,
  title={Generation and control of sound bullets with a nonlinear acoustic lens},
  author={Alessandro Spadoni and Chiara Daraio},
  journal={Proceedings of the National Academy of Sciences},
  year={2010},
  volume={107},
  pages={7230 - 7234}
}
  • A. Spadoni, C. Daraio
  • Published 31 August 2009
  • Physics
  • Proceedings of the National Academy of Sciences
Acoustic lenses are employed in a variety of applications, from biomedical imaging and surgery to defense systems and damage detection in materials. Focused acoustic signals, for example, enable ultrasonic transducers to image the interior of the human body. Currently however the performance of acoustic devices is limited by their linear operational envelope, which implies relatively inaccurate focusing and low focal power. Here we show a dramatic focusing effect and the generation of compact… 

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