Reconfigurable gradient index using VO2 memory metamaterials

Journal Article (Journal Article)

We demonstrate tuning of a metamaterial device that incorporates a form of spatial gradient control. Electrical tuning of the metamaterial is achieved through a vanadium dioxide layer which interacts with an array of split ring resonators. We achieved a spatial gradient in the magnitude of permittivity, writeable using a single transient electrical pulse. This induced gradient in our device is observed on spatial scales on the order of one wavelength at 1 THz. Thus, we show the viability of elements for use in future devices with potential applications in beamforming and communications. © 2011 American Institute of Physics.

Full Text

Duke Authors

Cited Authors

  • Goldflam, MD; Driscoll, T; Chapler, B; Khatib, O; Marie Jokerst, N; Palit, S; Smith, DR; Kim, BJ; Seo, G; Kim, HT; Ventra, MD; Basov, DN

Published Date

  • July 25, 2011

Published In

Volume / Issue

  • 99 / 4

International Standard Serial Number (ISSN)

  • 0003-6951

Digital Object Identifier (DOI)

  • 10.1063/1.3615804

Citation Source

  • Scopus