Refractive acoustic devices for airborne sound.

@article{Cervera2002RefractiveAD,
  title={Refractive acoustic devices for airborne sound.},
  author={Francisco Cervera and Lorenzo Sanchis and J. V. S{\'a}nchez-P{\'e}rez and Rosa Martinez-Sala and Carlos Rubio and Francisco J Meseguer and Carlos Diaz Lopez and D. Caballero and Jos{\'e} S{\'a}nchez-Dehesa},
  journal={Physical review letters},
  year={2002},
  volume={88 2},
  pages={023902}
}
We show that a sonic crystal made of periodic distributions of rigid cylinders in air acts as a new material which allows the construction of refractive acoustic devices for airborne sound. It is demonstrated that, in the long-wave regime, the crystal has low impedance and the sound is transmitted at subsonic velocities. Here, the fabrication and… CONTINUE READING