3D sound wave focusing by 2D internal periodic structure of 3D external cuboid shape

S. Castiñeira-Ibáñez, D. Tarrazó-Serrano, P. Candelas, O. V. Minin, C. Rubio, I. V. Minin

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Abstract

In this work, we report the focusing effect of a 2D sonic crystal cuboid. The proposed sonic composite lens is vertically extended from a 2-D flat Phononic Crystal Structure, but it is found to be able to focus waves in a three-dimensional manner. By varying the cuboid size, beam dimensions change and transverse beam width values smaller than the classical diffraction limit (~0.3 of wavelength) can be obtained. Numerical results have been obtained by Finite Element Method.

Original languageEnglish
Article number102582
JournalResults in Physics
Volume15
DOIs
Publication statusPublished - 1 Dec 2019

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Castiñeira-Ibáñez, S., Tarrazó-Serrano, D., Candelas, P., Minin, O. V., Rubio, C., & Minin, I. V. (2019). 3D sound wave focusing by 2D internal periodic structure of 3D external cuboid shape. Results in Physics, 15, [102582]. https://doi.org/10.1016/j.rinp.2019.102582