Nonlinear interference and unidirectional wave mixing in metamaterials.


Journal Article

When both electric and magnetic mechanisms contribute to a particular nonlinear optical process, there exists the possibility for nonlinear interference, often characterized by constructive or destructive interference in the radiation pattern of harmonics and mix waves. However, observation of a significant effect from nonlinear interference requires careful balancing of the various contributions. For this purpose, we propose an artificial metamaterial, using the formalism of nonlinear magnetoelectric coupling to simultaneously engineer the nonlinear polarization and magnetization. We confirm our predictions of nonlinear interference with both simulations and experiment, demonstrating unidirectional wave mixing in two microwave metamaterials. Our results point toward an ever wider range of nonlinear properties, in which nonlinear interference is just one of many potential applications.

Full Text

Duke Authors

Cited Authors

  • Rose, A; Huang, D; Smith, DR

Published Date

  • February 5, 2013

Published In

Volume / Issue

  • 110 / 6

Start / End Page

  • 063901 -

PubMed ID

  • 23432242

Pubmed Central ID

  • 23432242

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.110.063901


  • eng