상세정보
학술지
Reconfigurable Gradient Index Using VO2 Memory Metamaterials
- 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)
- 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