Wave focusing using symmetry matching in axisymmetric acoustic gradient index lenses
Materials Science
2015-06-17 v3 Optics
Abstract
The symmetry matching between the source and the lens results of fundamental interest for lensing applications. In this work we have modeled an axisymmetric gradient index (GRIN) lens made of rigid toroidal scatterers embedded in air considering this symmetry matching with radially symmetric sources. The sound amplification obtained in the focal spot of the reported lens (8.24 dB experimentally) shows the efficiency of the axisymmetric lenses with respect to the previous Cartesian acoustic GRIN lenses. The axisymmetric design opens new possibilities in lensing applications in different branches of science and technology.
Keywords
Cite
@article{arxiv.1309.4586,
title = {Wave focusing using symmetry matching in axisymmetric acoustic gradient index lenses},
author = {V. Romero-García and A. Cebrecos and R. Picó and V. J. Sánchez-Morcillo and L. M. Garcia-Raffi and J. V. Sánchez-Pérez},
journal= {arXiv preprint arXiv:1309.4586},
year = {2015}
}