Analytical model for plasmon modes in graphene-coated nanowire.
TLDR
The proposed model provides a fast insight into the mode behavior of graphene-coated nanowire, which would be useful for applications based on graphene plasmonics in cylindrical waveguide.Abstract:
An analytical model for plasmon modes in graphene-coated dielectric nanowire is presented. Plasmon modes could be classified by the azimuthal field distribution characterized by a phase factor exp(imφ) in the electromagnetic field expression and eigen equation of dispersion relation for plasmon modes is derived. The characteristic of plasmon modes could be tuned by changing nanowire radius, dielectric permittivity of nanowire and chemical potential of graphene. The proposed model provides a fast insight into the mode behavior of graphene-coated nanowire, which would be useful for applications based on graphene plasmonics in cylindrical waveguide.read more
Citations
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Electrically and Magnetically Biased Graphene-Based Cylindrical Waveguides: Analysis and Applications as Reconfigurable Antennas
TL;DR: In this article, the propagation of surface waves along electrically and magnetically biased graphene-based cylindrical waveguides (GCWs) is investigated in detail, considering the presence of an inner metallic core and multiple (coaxial-like) graphene layers.
Journal ArticleDOI
Dielectric loaded graphene plasmon waveguide.
TL;DR: An analytical model based on effective-index method is presented and verified by the finite element method simulations and provided a new freedom to manipulate the graphene surface plasmons, which may led to new applications in actively tunable integrated optical devices.
Journal ArticleDOI
Tunable invisibility cloaking by using isolated graphene-coated nanowires and dimers.
Mahin Naserpour,Mahin Naserpour,Carlos J. Zapata-Rodríguez,Slobodan Vuković,Slobodan Vuković,Hamid Pashaeiadl,Milivoj R. Belic +6 more
TL;DR: An analytical formula is derived that enables fast evaluation of the spectral window with a substantial reduction in scattering efficiency for a sufficiently thin cylinder that leads to tunable resonant invisibility that can be achieved via modification of graphene chemical potential monitored by the gate voltage.
Journal ArticleDOI
Plasmons in Cylindrical 2D Materials as a Platform for Nanophotonic Circuits
Irati Soto Lamata,Pablo Alonso-González,Rainer Hillenbrand,Rainer Hillenbrand,Alexey Y. Nikitin +4 more
TL;DR: In this article, the authors studied the launching and propagation of CNT plasmons in different key plasmonic structures, which include both coupled CNT waveguides and coupled carbon nanotubes (CNT) resonators.
Journal ArticleDOI
Tunable plasmonic enhancement of light scattering and absorption in graphene-coated subwavelength wires
TL;DR: Riso, Maximo, et al. the authors, the authors presented a model of the Fisica of Ciencias Exactas and Naturales at the Universidad de Buenos Aires.
References
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Graphene plasmonics for tunable terahertz metamaterials
Long Ju,Baisong Geng,Baisong Geng,Jason Horng,Caglar Girit,Michael C. Martin,Zhao Hao,Hans A. Bechtel,Xiaogan Liang,Alex Zettl,Alex Zettl,Y. Ron Shen,Y. Ron Shen,Feng Wang,Feng Wang +14 more
TL;DR: It is demonstrated that graphene plasmon resonances can be tuned over a broad terahertz frequency range by changing micro-ribbon width and in situ electrostatic doping and the results represent a first look at light-plasmon coupling in graphene and point to potential graphene-based terAhertz metamaterials.
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Plasmonics in graphene at infrared frequencies
TL;DR: In this article, the authors show that plasmons in doped graphene simultaneously enable low-loss and significant wave localization for frequencies below that of the optical phonon branch hbar omega{;Oph};\approx 0.2 eV.
Journal ArticleDOI
A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation
TL;DR: In this article, a hybrid optical waveguide is proposed to confine surface plasmon polaritons over large distances using a dielectric nanowire separated from a metal surface by a nanoscale gap.
Journal ArticleDOI
Searching for better plasmonic materials
Paul R. West,Satoshi Ishii,Gururaj V. Naik,Naresh Kumar Emani,Vladimir M. Shalaev,Alexandra Boltasseva +5 more
TL;DR: A comparative study of various materials including metals, metal alloys and heavily doped semiconductors is presented in this article, where the performance of each material is evaluated based on quality factors defined for each class of plasmonic devices.
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Searching for Better Plasmonic Materials
Paul R. West,Satoshi Ishii,Gururaj V. Naik,Naresh Kumar Emani,Vladimir M. Shalaev,Alexandra Boltasseva +5 more
TL;DR: A comparative study of various materials including metals, metal alloys and heavily doped semiconductors is presented and an approach for realizing optimal plasmonic material properties for specific frequencies and applications is outlined.