Abstract
The electromagnetic response of a two-dimensional metal embedded in a periodic array of a dielectric host can give rise to a plasmonic Dirac point that emulates epsilon-near-zero (ENZ) behavior. This theoretical result is extremely sensitive to structural features like periodicity of the dielectric medium and thickness imperfections. We propose that such a device can actually be realized by using graphene as the two-dimensional metal and materials like the layered semiconducting transition-metal dichalcogenides or hexagonal boron nitride as the dielectric host. We propose a systematic approach, in terms of design characteristics, for constructing metamaterials with linear, elliptical, and hyperbolic dispersion relations which produce ENZ behavior, normal or negative diffraction.
| Original language | English |
|---|---|
| Article number | 201404 |
| Journal | Physical Review B |
| Volume | 94 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 2016 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Epsilon-near-zero behavior from plasmonic Dirac point : Theory and realization using two-dimensional materials. / Mattheakis, Marios; Valagiannopoulos, Constantinos A.; Kaxiras, Efthimios.
In: Physical Review B, Vol. 94, No. 20, 201404, 2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Epsilon-near-zero behavior from plasmonic Dirac point
T2 - Theory and realization using two-dimensional materials
AU - Mattheakis, Marios
AU - Valagiannopoulos, Constantinos A.
AU - Kaxiras, Efthimios
PY - 2016
Y1 - 2016
N2 - The electromagnetic response of a two-dimensional metal embedded in a periodic array of a dielectric host can give rise to a plasmonic Dirac point that emulates epsilon-near-zero (ENZ) behavior. This theoretical result is extremely sensitive to structural features like periodicity of the dielectric medium and thickness imperfections. We propose that such a device can actually be realized by using graphene as the two-dimensional metal and materials like the layered semiconducting transition-metal dichalcogenides or hexagonal boron nitride as the dielectric host. We propose a systematic approach, in terms of design characteristics, for constructing metamaterials with linear, elliptical, and hyperbolic dispersion relations which produce ENZ behavior, normal or negative diffraction.
AB - The electromagnetic response of a two-dimensional metal embedded in a periodic array of a dielectric host can give rise to a plasmonic Dirac point that emulates epsilon-near-zero (ENZ) behavior. This theoretical result is extremely sensitive to structural features like periodicity of the dielectric medium and thickness imperfections. We propose that such a device can actually be realized by using graphene as the two-dimensional metal and materials like the layered semiconducting transition-metal dichalcogenides or hexagonal boron nitride as the dielectric host. We propose a systematic approach, in terms of design characteristics, for constructing metamaterials with linear, elliptical, and hyperbolic dispersion relations which produce ENZ behavior, normal or negative diffraction.
UR - http://www.scopus.com/inward/record.url?scp=84995538671&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84995538671&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.94.201404
DO - 10.1103/PhysRevB.94.201404
M3 - Article
VL - 94
JO - Physical Review B
JF - Physical Review B
SN - 1098-0121
IS - 20
M1 - 201404
ER -