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학술지 Reconfigurable Gradient Index Using VO2 Memory Metamaterials
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저자
M. D. Goldflam, T. Driscoll, B. Chapler, O. Khatib, N. Marie Jokerst, S. Palit, D. R. Smith, 김봉준, 서기완, 김현탁, M. Di Ventra, D. N. Basov
발행일
201107
출처
Applied Physics Letters, v.99 no.4, pp.1-3
ISSN
0003-6951
출판사
American Institute of Physics (AIP)
DOI
https://dx.doi.org/10.1063/1.3615804
초록
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.
KSP 제안 키워드
Electrical pulses, Gradient index, Potential applications, Spatial scales, electrical tuning, split-ring resonator, vanadium dioxide