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A dispersion hybrid implicit–explicit finite-difference time-domain (HIE-FDTD) method is proposed for simulating the graphene-based absorber at terahertz frequencies. The surface conductivity of the graphene derived from the Kubo formula is incorporated into the conventional HIE-FDTD algorithm by using the auxiliary differential equation technique. The time step size of this method is not related...
Recently graphene has attracted tremendous attention for its excellent properties Numerous novel graphene-based devices have come out, showing great potential of graphene for tunable applications at THz band In this paper, by stacking a monolayer of graphene on the top of the polymer substrate, a graphene-based tunable absorber is obtained owning to the voltage-controllable conductivity of graphene...
Recently graphene has attracted tremendous attention for its excellent properties. Numerous novel graphene-based devices have come out, showing great potential of graphene for applications at the terahertz band. In this paper, by placing monolayer graphene deposited on top of a SiO2/Si substrate, a tunable graphene-based dipole antenna owing to the voltage-controllable conductivity of graphene is...
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