IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v5y2014i1d10.1038_ncomms6510.html
   My bibliography  Save this article

Negative refraction of elastic waves at the deep-subwavelength scale in a single-phase metamaterial

Author

Listed:
  • R. Zhu

    (University of Arkansas at Little Rock
    Present address: Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, North Carolina 27695-7910, USA)

  • X. N. Liu

    (School of Aerospace Engineering, Beijing Institute of Technology)

  • G. K. Hu

    (School of Aerospace Engineering, Beijing Institute of Technology)

  • C. T. Sun

    (School of Aeronautics and Astronautics, Purdue University)

  • G. L. Huang

    (University of Arkansas at Little Rock
    Present address: Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, Missouri 65211, USA)

Abstract

Negative refraction of elastic waves has been studied and experimentally demonstrated in three- and two-dimensional phononic crystals, but Bragg scattering is impractical for low-frequency wave control because of the need to scale the structures to manageable sizes. Here we present an elastic metamaterial with chiral microstructure made of a single-phase solid material that aims to achieve subwavelength negative refraction of elastic waves. Both negative effective mass density and modulus are observed owing to simultaneous translational and rotational resonances. We experimentally demonstrate negative refraction of the longitudinal elastic wave at the deep-subwavelength scale in the metamaterial fabricated in a stainless steel plate. The experimental measurements are in good agreement with numerical simulations. Moreover, wave mode conversion related with negative refraction is revealed and discussed. The proposed elastic metamaterial may thus be used as a flat lens for elastic wave focusing.

Suggested Citation

  • R. Zhu & X. N. Liu & G. K. Hu & C. T. Sun & G. L. Huang, 2014. "Negative refraction of elastic waves at the deep-subwavelength scale in a single-phase metamaterial," Nature Communications, Nature, vol. 5(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6510
    DOI: 10.1038/ncomms6510
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms6510
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms6510?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Chandra Shaker Pittala & Rajeev Ratna Vallabhuni & Vallabhuni Vijay & Usha Rani Anam & Kancharapu Chaitanya, 2022. "Numerical analysis of various plasmonic MIM/MDM slot waveguide structures," International Journal of System Assurance Engineering and Management, Springer;The Society for Reliability, Engineering Quality and Operations Management (SREQOM),India, and Division of Operation and Maintenance, Lulea University of Technology, Sweden, vol. 13(5), pages 2551-2558, October.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6510. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.