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Anomalous refraction and focusing of SH waves in solids with elastic metasurface

  • Northwestern Polytechnical University Xian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The extension of the concept of acoustic metasurface to elastic waves in solids is considered by proposing the elastic SH wave metasurface. The designed metasurface, fabricated with two solid materials, can approximately realize impedance matching. The ability of steering SH waves is demonstrated numerically. Firstly, according to the generalized Snell's law (GSL), the designed metasurface deflect the vertical incident waves in desired directions. Then, the metasurface with the effect of focusing elastic SH waves is design to achieve a very narrow focal point. The current study can be potentially useful for applications such as directional detection, enhanced sensing and energy harvesting.

Original languageEnglish
Title of host publicationProceedings of the 2017 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2017
EditorsGuo-Zheng Kang, Li Xiang-Yu
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages95-98
Number of pages4
ISBN (Electronic)9781538662373
DOIs
StatePublished - 2 Jul 2017
Event2017 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2017 - Chengdu, China
Duration: 27 Oct 201730 Oct 2017

Publication series

NameProceedings of the 2017 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2017
Volume2018-April

Conference

Conference2017 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2017
Country/TerritoryChina
CityChengdu
Period27/10/1730/10/17

Keywords

  • Anomalous refraction
  • Focusing
  • Metasurface
  • Phase discontinuities
  • SH wave

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