Additive manufacture of small-scale metamaterial structures for acoustic and ultrasonic applications

Alicia Gardiner, Paul Daly, Roger Domingo-Roca, James Windmill, Andrew Feeney, Joseph Jackson

Research output: Contribution to journalReview articlepeer-review

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Acoustic metamaterials are large-scale materials with small-scale structures. These structures allow for unusual interaction with propagating sound and endow the large-scale material with exceptional acoustic properties not found in normal materials. However, their multi-scale nature means that the manufacture of these materials is not trivial, often requiring micron-scale resolution over centimetre length scales. In this review, we bring together a variety of acoustic-metamaterial designs and separately discuss ways to create them using the latest trends in additive manufacturing. We highlight the advantages and disadvantages of different techniques that act as barriers towards the development of realisable acoustic metamaterials for practical audio and ultrasonic applications, and speculate on potential future developments.
Original languageEnglish
Article number634
Number of pages45
Issue number6
Publication statusPublished - 29 May 2021


  • Acoustic metamaterials
  • additive manufacturing
  • acoustics
  • ultrasonics


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