Tunable metamaterials based on split ring resonators and doped graphene

Vasić, Borislav; Jakovljević, Milka; Isić, Goran; Gajić, Radoš

doi:10.1063/1.4812989

Cited by 98 publications

(33 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The MTM structure consists of a planar array of square split-ring resonators (SSRRs) infinitely extended in the x-y-plane [22,23]. The unit cell of the SSRRs is shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

How good would the conductivity of graphene have to be to make single-layer-graphene metamaterials for terahertz frequencies feasible?

Zouaghi

Voß

Gorath

et al. 2015

Carbon

View full text Add to dashboard Cite

“…The MTM structure consists of a planar array of square split-ring resonators (SSRRs) infinitely extended in the x-y-plane [22,23]. The unit cell of the SSRRs is shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

How good would the conductivity of graphene have to be to make single-layer-graphene metamaterials for terahertz frequencies feasible?

Zouaghi

Voß

Gorath

et al. 2015

Carbon

View full text Add to dashboard Cite

“…The graphene sheet is placed in the middle of the cavity ðx ¼ 0Þ with the surface conductivity . Within the random-phase approximation, the graphene surface conductivity is the sum of the intraband intra and the interband term inter [24], [27]- [29], where…”

Section: Models and Methodsmentioning

confidence: 99%

Tunable Group Delay of the Optical Pulse Reflection From Fabry–Perot Cavity With the Insertion of Graphene Sheets

et al. 2014

View full text Add to dashboard Cite

We have theoretically investigated the group delay of the TE-polarized beam reflected from a Fabry-Perot cavity with the insertion of the graphene sheets in the nearinfrared band. It is shown that even a single-layer graphene allows for notable variation of group delay. Group delay can be enlarged negatively and can be switched from positive to negative, or vice versa. Importantly, the group delay depends on the Fermi energy of the graphene sheets, and thus, it can be actively controlled through electrical or chemical modification of the charge carrier density of the graphene. Furthermore, the influences of the position of graphene in the Fabry-Perot cavity, the mirror transmittance, and the number of graphene layers on group delay are clarified.

show abstract

“…Graphene can be characterized by a complex surface conductivity , which is a function of angular frequency = 2 / , Fermi energy , carrier scattering rate Γ, and absolute temperature of the environment. is obtained by intraband and interband = intra + inter terms, which can be expressed according to the Kubo formula [26]:…”

Section: The Proposed Structure and Simulation Methodsmentioning

confidence: 99%

Tunable Optical Bistability in One-Dimensional Photonic Crystal with a Nonlinear Defect Coupled by Graphene Sheets

Zhang

Jiang

Guo

et al. 2017

Advances in Condensed Matter Physics

View full text Add to dashboard Cite

The optical bistability in one-dimensional photonic crystal (1DPC) with a nonlinear defect is investigated. It is demonstrated that, by introducing graphene layers into the nonlinear defect, the optical bistability in 1DPC can be changed significantly. The hysteresis threshold increases with the number of graphene monolayers and can be lowered or enhanced by tuning the Fermi energy of graphene. On the other hand, the hysteresis width and the nonlinear lateral shift can also be controlled by varying the Femi energy and the number of graphene monolayers. These results may be useful for controlling the optical bistability and nonlinear lateral shift in 1DPCs.

show abstract

Tunable metamaterials based on split ring resonators and doped graphene

Cited by 98 publications

References 35 publications

How good would the conductivity of graphene have to be to make single-layer-graphene metamaterials for terahertz frequencies feasible?

How good would the conductivity of graphene have to be to make single-layer-graphene metamaterials for terahertz frequencies feasible?

Tunable Group Delay of the Optical Pulse Reflection From Fabry–Perot Cavity With the Insertion of Graphene Sheets

Tunable Optical Bistability in One-Dimensional Photonic Crystal with a Nonlinear Defect Coupled by Graphene Sheets

Contact Info

Product

Resources

About