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Controlling Electromagnetic Fields
Using the freedom of design that metamaterials provide, we show how electromagnetic fields can be redirected at will and propose a design strategy. The conserved fields—electric displacement field D,Expand
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Experimental Verification of a Negative Index of Refraction
We present experimental scattering data at microwave frequencies on a structured metamaterial that exhibits a frequency band where the effective index of refraction (n) is negative. The materialExpand
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Metamaterial Electromagnetic Cloak at Microwave Frequencies
A recently published theory has suggested that a cloak of invisibility is in principle possible, at least over a narrow frequency band. We describe here the first practical realization of such aExpand
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Electromagnetic parameter retrieval from inhomogeneous metamaterials.
We discuss the validity of standard retrieval methods that assign bulk electromagnetic properties, such as the electric permittivity epsilon and the magnetic permeability mu, from calculations of theExpand
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An Overview of the Theory and Applications of Metasurfaces: The Two-Dimensional Equivalents of Metamaterials
Metamaterials are typically engineered by arranging a set of small scatterers or apertures in a regular array throughout a region of space, thus obtaining some desirable bulk electromagneticExpand
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Full-wave simulations of electromagnetic cloaking structures.
Pendry et al. have reported electromagnetically anisotropic and inhomogeneous shells that, in theory, completely shield an interior structure of arbitrary size from electromagnetic fields withoutExpand
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Calculation of material properties and ray tracing in transformation media.
Complex and interesting electromagnetic behavior can be found in spaces with non-flat topology. When considering the properties of an electromagnetic medium under an arbitrary coordinateExpand
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Design of electromagnetic cloaks and concentrators using form-invariant coordinate transformations of Maxwell’s equations
The technique of applying form-invariant, spatial coordinate transformations of Maxwell’s equations can facilitate the design of structures with unique electromagnetic or optical functionality. Here,Expand
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Probing the mechanisms of large Purcell enhancement in plasmonic nanoantennas
Plasmonic nanostructures enable spontaneous emission enhancement factors of greater than 1,000 — the largest observed to date. The orientation of dipole emitters in nanogaps plays a vital role.
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Broadband Ground-Plane Cloak
The possibility of cloaking an object from detection by electromagnetic waves has recently become a topic of considerable interest. The design of a cloak uses transformation optics, in which aExpand
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