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arXiv · 1103.5729

Reconfigurable Gradient Index using VO2 Memory Metamaterials

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

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 sc ales 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

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M. D. Goldflam, T. Driscoll, B. Chapler, O. Khatib, N. Marie Jokerst, S. Palit, D. R. Smith, Bong-Jun Kim, Giwan Seo, Hyun-Tak Kim, M. Di Ventra, D. N. Basov. 2011-08-17. Reconfigurable Gradient Index using VO2 Memory Metamaterials. https://doi.org/10.1063/1.3615804

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