Reply to ``Comment on `Theory for tailoring sonic devices: Diffraction dominates over refraction' ''

In their Comment, <article>Håkansson et al. [preceding Comment, Phys. Rev. E 71, 018601 (2005)]</article> say that our conclusion stating that diffraction prevails over refraction in acoustic lenses whose aperture is of several wavelengths, such as those addressed in our calculations <article>[Garcia et al., Phys. Rev. E 67, 046606 (2003)]</article> and in their experiments <article>[Cervera et al., Phys. Rev. Lett. 88, 023902 (2003)]</article>, is misleading because the size of their lenses is larger than ours. They state that diffraction effects are negligible at the scale of their experiments. In this Reply we calculate the propagation of a plane wave through both a lens and a slab of aluminum cylinders, identical to those presented by such authors in previous experiments, by using a finite difference time domain method. We then compare our results to the experiments previously reported by the authors of the Comment and significant differences are found. Our present calculations show that refraction and diffraction are intrinsically interwoven also at the scale of their experiments.