Reflectionless plasmonic right-angled waveguide bend and divider using graphene and transformation optics
TLDR
In this paper, a plasmonic right-angled waveguide bend and divider are proposed using the Transformation Optics (TO) approach to obtain the transformation media of a bend and a T-shaped divider.Abstract:
In this work, a plasmonic right-angled waveguide bend and divider are proposed. Using the Transformation Optics (TO) approach the transformation media of a bend and a T-shaped divider are obtained. Such media with continuous refractive index are realized with the help of graphene in the terahertz frequency range, key to effectively guiding the surface plasmon polariton (SPP) propagation on the 90 degree curves. Components with such capability are promising for THz device applications.read more
Citations
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Graphene THz filter-switch dividers based on dipole-quadrupole and magneto-optical resonance effects.
TL;DR: In this article, the authors proposed and analyzed a multifunctional THz graphene-based component with graphene elements placed on a dielectric substrate, which consists of a disc shaped resonator coupled to three graphene waveguides that excite the dipole or quadrupole resonance of surface plasmon polaritons.
Journal ArticleDOI
Wideband flat reflector antenna based on conformal transformation optics
TL;DR: In this paper , an implementable high-performance wideband flat reflector based on conformal transformation optics is proposed, where the optical path rescaling method is employed to overcome the sub-unity refractive index issue, resulting in an all dielectric isotropic graded-index medium that is physically implementable.
Posted ContentDOI
Design of a High-performance Flat Reflector Antenna Based on Conformal Transformation Optics
TL;DR: In this article , a flat reflector based on conformal transformation optics is proposed, where the rescaling refractive index approach is applied to overcome the sub-unit refractive indices issue, resulting in an all-dielectric isotropic graded-index medium.
Journal ArticleDOI
Multifunctional resonant graphene four-port for THz and far IR regions
TL;DR: In this article , a new multifunctional resonant device for THz and far-infrared regions based on surface plasmon-polariton graphene resonator and waveguides is suggested and analyzed.
Posted Content
Unidirectional Curved Surface Plasmon Polariton in a Radially Magnetized System
TL;DR: In this article, a radial magnetic bias was used to excite a curved surface plasmon polariton (SPP) in topological continua by applying a radially-biased magnetic bias.
References
More filters
Journal ArticleDOI
Controlling Electromagnetic Fields
TL;DR: This work shows how electromagnetic fields can be redirected at will and proposes a design strategy that has relevance to exotic lens design and to the cloaking of objects from electromagnetic fields.
Journal ArticleDOI
Optical Conformal Mapping
TL;DR: A general recipe for the design of media that create perfect invisibility within the accuracy of geometrical optics is developed, which can be applied to escape detection by other electromagnetic waves or sound.
Journal ArticleDOI
Transformation Optics Using Graphene
Ashkan Vakil,Nader Engheta +1 more
TL;DR: By designing and manipulating spatially inhomogeneous, nonuniform conductivity patterns across a flake of graphene, one can have this material as a one-atom-thick platform for infrared metamaterials and transformation optical devices.
Journal ArticleDOI
Dyadic Green's functions and guided surface waves for a surface conductivity model of graphene
TL;DR: In this paper, an exact solution for the electromagnetic field due to an electric current in the presence of a surface conductivity model of graphene is obtained in terms of dyadic Green's functions represented as Sommerfeld integrals.
Journal ArticleDOI
Optical cloaking with metamaterials
TL;DR: This work presents the design of a non-magnetic cloak operating at optical frequencies, and the principle and structure of the proposed cylindrical cloak are analysed and the general recipe for the implementation of such a device is provided.
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