One-way glass for microwaves using nonreciprocal metamaterials.

Journal Article (Journal Article)

We introduce a class of nonreciprocal metamaterials based on composite assemblies of metallic and biased ferrimagnetic elements. We show that such structures act as ultrathin one-way glasses due to the competition between two modes at the surface of the ferrimagnetic elements--a low-loss surface wave that transmits the signal on the other side of the structure and a surface spin-wave resonance that produces strong isolation levels. These findings can be adapted to existing metamaterial geometries, offering a blueprint to achieve unidirectional propagation in a variety of artificial media at radio, microwave, and millimeter wave frequencies.

Full Text

Duke Authors

Cited Authors

  • Degiron, A; Smith, DR

Published Date

  • May 27, 2014

Published In

Volume / Issue

  • 89 / 5

Start / End Page

  • 053203 -

PubMed ID

  • 25353908

Electronic International Standard Serial Number (EISSN)

  • 1550-2376

International Standard Serial Number (ISSN)

  • 1539-3755

Digital Object Identifier (DOI)

  • 10.1103/physreve.89.053203


  • eng