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