Acoustic dispersive prism.
From a “transmission lines” formalism, design, simulation, and prototyping of an acoustic dispersive prism with acoustc metamaterials. (Acoustic equivalent to the glass prism that separates white light into its colored components)
Article: “Acoustic dispersive prism”, Hussein Esfahlani, Sami Karkar, Herve Lissek & Juan R. Mosig, Scientific Reports volume 6, Article number: 18911 (2016) [https://www.nature.com/articles/srep18911]
[Work conducted at EPFL (coll. Hervé Lissek and Hussain Esfahlani)] (2013-2016)