3D sound wave focusing by 2D internal periodic structure of 3D external cuboid shape
| Parent link: | Results in Physics Vol. 15.— 2019.— [102582, 4 p.] |
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| Weitere Verfasser: | , , , , , |
| Zusammenfassung: | Title screen 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. |
| Sprache: | Englisch |
| Veröffentlicht: |
2019
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| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.1016/j.rinp.2019.102582 |
| Format: | Elektronisch Buchkapitel |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661233 |