A. D. Boardman
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View article: Nonlinear waves in hyperbolic metamaterials: focus on solitons and rogues
Nonlinear waves in hyperbolic metamaterials: focus on solitons and rogues Open
The investigation of hyperbolic metamaterials, shows that metal layers that are part of graphene structures, and also types I and II layered systems, are readily controlled. Since graphene is a nicely conducting sheet it can be easily mana…
View article: Spatial algebraic solitons at the Dirac point in optically induced nonlinear photonic lattices
Spatial algebraic solitons at the Dirac point in optically induced nonlinear photonic lattices Open
The discovery of a new type of soliton occurring in periodic systems is reported. This type of nonlinear excitation exists at a Dirac point of a photonic band structure, and features an oscillating tail that damps algebraically. Solitons i…
View article: Waves in hyperbolic and double negative metamaterials including rogues and solitons
Waves in hyperbolic and double negative metamaterials including rogues and solitons Open
The topics here deal with some current progress in electromagnetic wave propagation in a family of substances known as metamaterials. To begin with, it is discussed how a pulse can develop a leading edge that steepens and it is emphasised …
View article: Anomalous diffraction in hyperbolic materials
Anomalous diffraction in hyperbolic materials Open
We demonstrate that light is subject to anomalous (i.e., negative) diffraction when propagating in the presence of hyperbolic dispersion. We show that light propagation in hyperbolic media resembles the dynamics of a quantum particle of ne…
View article: Dirac-Point Solitons in Nonlinear Optical Lattices
Dirac-Point Solitons in Nonlinear Optical Lattices Open
The discovery of a new type of solitons occuring in periodic systems without photonic bandgaps is reported. Solitons are nonlinear self-trapped wave packets. They have been extensively studied in many branches of physics. Solitons in perio…
View article: Fiber guiding at the Dirac frequency beyond photonic bandgaps
Fiber guiding at the Dirac frequency beyond photonic bandgaps Open
Light trapping within waveguides is a key practice of modern optics, both scientifically and technologically. Photonic crystal fibers traditionally rely on total internal reflection (index-guiding fibers) or a photonic bandgap (photonic-ba…
View article: Optic axis-driven new horizons for hyperbolic metamaterials
Optic axis-driven new horizons for hyperbolic metamaterials Open
\n\t\t\t\tThe broad assertion here is that the current hyperbolic metamaterial world is only partially served by investigations that incorporate only some limited version of anisotropy. Even modest deviations of the optic axis from the mai…