Title Acoustic scattering from a spherical lens irradiated by a finite transducer: Focusing effect and refraction
Authors PARRALES BORRERO, MIGUEL ÁNGEL, Perez-Saborid, Miguel , Fernandez Garcia, Juan M.
External publication No
Means Am. J. Phys.
Scope Article
Nature Científica
JCR Quartile 3
SJR Quartile 2
JCR Impact 0.729
SJR Impact 0.608
Publication date 01/04/2011
ISI 000288388400013
DOI 10.1119/1.3546092
Abstract We carry out a spatio-temporal analysis of the scattering from a spherical inhomogeneity irradiated by a finite transducer. We show that when the inhomogeneity behaves as a focusing acoustic lens, the gain and position of the focus depend strongly on the ratio of the lens size to the irradiation width. We also analyze the refraction through the lens which takes place for off-axis incidence using a two-dimensional approach. The results of the wave formulation reproduce those predicted by the law of refraction for the behavior of a ray and for the trajectory of a wave packet. (C) 2011 American Association of Physics Teachers. [DOI: 10.1119/1.3546092]
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