Asymmetric transmission of acoustic waves in a waveguide via gradient index metamaterials

Wen Kang Cao, Li Ting Wu, Cheng Zhang, Jun Chen Ke, Qiang Cheng, Tie Jun Cui, Yun Jing

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We demonstrate that asymmetric acoustic wave transmission in a waveguide can be achieved via gradient index metamaterials (GIMs). We theoretically prove that the acoustic wave can be efficiently converted to surface waves (SWs) via GIMs. The GIMs in a waveguide can allow the transmission of acoustic waves in one direction but block them in the other direction. This theory is validated by experiments. Our findings may provide new applications in various scenarios such as high-efficiency acoustic couplers and noise control.

Original languageEnglish (US)
Pages (from-to)808-813
Number of pages6
JournalScience Bulletin
Volume64
Issue number12
DOIs
StatePublished - Jun 30 2019

All Science Journal Classification (ASJC) codes

  • General

Fingerprint Dive into the research topics of 'Asymmetric transmission of acoustic waves in a waveguide via gradient index metamaterials'. Together they form a unique fingerprint.

Cite this