Comment on "Theory of tailoring sonic devices: Diffraction dominates over refraction"
Materials Science
2009-11-10 v1
Abstract
Recently N. Garcia et al. (Phys. Rev. E 67, 046606 (2003)) theoretically studied several acoustic devices with dimensions on de order of several wavelenghts. The authors discussed on experimental results previously reported by several of us (F. Cervera et al., Phys. Rev. Lett. 88, 023902 (2002)). They concluded that diffraction and not refraction is the ominating mechanism that explain the focusing effects observed in those experiments. In this Comment we reexamined their calculations and discussed why some of their interpretations of our results are misleading.
Cite
@article{arxiv.cond-mat/0405181,
title = {Comment on "Theory of tailoring sonic devices: Diffraction dominates over refraction"},
author = {A. Hakansson and J. Sanchez-Dehesa and F. Cervera and F. Meseguer and L. Sanchis and J. Llinares},
journal= {arXiv preprint arXiv:cond-mat/0405181},
year = {2009}
}
Comments
2 pages, 2 figures, a comment on an article