metamaterial

Noun

metamaterial (plural metamaterials)

1. Any material engineered to have a property that is rarely observed in naturally occurring materials; especially
   • This study paves the way for investigating complex contact-based dynamics of microgranular media, demonstrates a novel acoustic metamaterial, and yields a new approach to studying micro- to nanoscale contact mechanics in multiparticle networks..2015, Morgan Hiraiwa, Maroun Abi Ghanem, Samuel P. Wallen, Amey Khanolkar, Alexei A. Maznev, Nicholas Boechler, “Complex contact-based dynamics of microsphere monolayers revealed by resonant...
   • Planar metamaterials with subwavelength thickness, or metasurfaces, consisting of single-layer or few-layer stacks of planar structures, can be readily fabricated using lithography and nanoprinting methods, and the ultrathin thickness in the wave propagation direction can greatly suppress the...2016, Hou-Tong Chen, Antoinette J Taylor, Nanfang Yu, “A review of metasurfaces: physics and applications”, in arXiv
2. Any material that obtains its electromagnetic properties from its structure rather than from its chemical composition; especially a material engineered to have features of a size less than that of the wavelength of a class of electromagnetic radiation.