Journal
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
Volume 3, Issue 6, Pages 748-756Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTHZ.2013.2285629
Keywords
Absorber; graphene; magnetic materials; metamaterials; polarizing filters
Funding
- National Science Foundation through CAREER Award [ECCS-0953311]
- Norman Hackerman Research Program
- Air Force Office of Scientific Research through YIP Award [FA9550-11-1-0009]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0953311] Funding Source: National Science Foundation
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We propose here the concept and practical design of THz metamaterial devices consisting of subwavelength graphene nanostructures placed on a dielectric substrate and backed by a metal gate. This geometry allows us to introduce the design of a THz metaferrite screen with effective permeability that can be tuned from positive to negative, as a function of graphene's Fermi energy. We then discuss its potential applications to realize tunable and switchable THz and far-infrared artificial magnetic screens, perfect absorbing films, and polarizing filters.
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