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Acoustic focusing through two layer annuluses in air

Publication ,  Journal Article
Guan, YJ; Sun, HX; Liu, SS; Yuan, SQ; Xia, JP; Ge, Y
Published in: Chinese Physics B
October 1, 2016
Published version (DOI)

We report an acoustic focusing lens composed of two-layer annuluses made of metal cylinders in air. We find that the cylindrical waves can be focused into a perfect point without diffraction in the centre of the annuluses, which arises from the Mie-resonance modes in the annuluses. The focusing frequencies are related to the size of the inner annulus, and the focusing effect can be applied to the annuluses with different shapes and incident positions. Interesting applications of the focusing lens in the acoustic beam splitter and directional transmitter with energy enhancement are further discussed.

Duke Scholars

Jianping Xia
Author Jianping Xia  

Published In

Chinese Physics B

DOI

10.1088/1674-1056/25/10/104302

EISSN

2058-3834

ISSN

1674-1056

Publication Date

October 1, 2016

Volume

25

Issue

10

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Guan, Y. J., Sun, H. X., Liu, S. S., Yuan, S. Q., Xia, J. P., & Ge, Y. (2016). Acoustic focusing through two layer annuluses in air. Chinese Physics B, 25(10). https://doi.org/10.1088/1674-1056/25/10/104302
Guan, Y. J., H. X. Sun, S. S. Liu, S. Q. Yuan, J. P. Xia, and Y. Ge. “Acoustic focusing through two layer annuluses in air.” Chinese Physics B 25, no. 10 (October 1, 2016). https://doi.org/10.1088/1674-1056/25/10/104302.
Guan YJ, Sun HX, Liu SS, Yuan SQ, Xia JP, Ge Y. Acoustic focusing through two layer annuluses in air. Chinese Physics B. 2016 Oct 1;25(10).
Guan, Y. J., et al. “Acoustic focusing through two layer annuluses in air.” Chinese Physics B, vol. 25, no. 10, Oct. 2016. Scopus, doi:10.1088/1674-1056/25/10/104302.
Guan YJ, Sun HX, Liu SS, Yuan SQ, Xia JP, Ge Y. Acoustic focusing through two layer annuluses in air. Chinese Physics B. 2016 Oct 1;25(10).

Published In

Chinese Physics B

DOI

10.1088/1674-1056/25/10/104302

EISSN

2058-3834

ISSN

1674-1056

Publication Date

October 1, 2016

Volume

25

Issue

10

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences