Details

Autor(en) / Beteiligte

• Goldflam, M. D.
• Driscoll, T.
• Chapler, B.
• Khatib, O.
• Marie Jokerst, N.
• Palit, S.
• Smith, D. R.
• Kim, Bong-Jun
• Seo, Giwan
• Kim, Hyun-Tak
• Ventra, M. Di
• Basov, D. N.

Titel

Reconfigurable gradient index using VO2 memory metamaterials

Ist Teil von

• Applied physics letters, 2011-07, Vol.99 (4)

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.