Spatial Filtering of Sound Beams by Sonic Crystals
Materials Science
2010-03-26 v1 Fluid Dynamics
Abstract
We propose and numerically demonstrate an efficient cleaning of spatial structure (spatial filtering) of sound beams by propagating them through at least twodimensional sonic crystals, i.e. through acoustic structures periodically modulated in longitudinal and in transversal direction with respect to the sound propagation direction. We show the spatial filtering in two configurations: with- and without the angular band-gap. We also show that besides the spatial filtering the beams can be additionally focalized at a particular distance behind the sonic crystal in both configurations.
Cite
@article{arxiv.1003.4844,
title = {Spatial Filtering of Sound Beams by Sonic Crystals},
author = {R. Pico and V. J. Sanchez-Morcillo and I. Perez-Arjona and K. Staliunas},
journal= {arXiv preprint arXiv:1003.4844},
year = {2010}
}