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Metamaterials

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metamaterial
thumb|upright=1.2|Negative-index metamaterial array configuration, which was constructed of copper [[split-ring resonators and wires mounted on interlocking sheets of fiberglass circuit board. The total array consists of 3×20×20 unit cells with overall dimensions of .]]
photonic crystal
periodic optical nanostructure affecting the motion of photons in much the same way as ionic lattices affect electrons in solids
evanescent wave
oscillating electric and/or magnetic field that does not propagate as an electromagnetic wave but whose energy is spatially concentrated in the vicinity of the source
plasmonics
thumb|260px|A Hybrid plasmonic waveguide|plasmonic waveguide design to facilitate [[negative refraction in visible spectrum]] Plasmonics or nanoplasmonics refers to the generation, detection, and manipulation of signals at optical frequencies along metal-dielectric interfaces in the nanometer scale. Inspired by photonics, plasmonics follows the trend of miniaturizing optical devices (see also nanophotonics), and finds applications in sensing, microscopy, optical communications, and bio-photonics.
acoustic dispersion
frequency dispersion applied to sound and seismic waves
negative index metamaterials
metamaterials whose refractive index for an electromagnetic wave has a negative value over some frequency range
surface plasmon polariton
electromagnetic waves that travel along an interface
acoustic metamaterial
type of material
superlens
A superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution depending on the illumination wavelength and the numerical aperture (NA) of the objective lens. Many lens designs have been proposed that go beyond the diffraction limit in some way, but constraints and obstacles face each of them.
frequency selective surface
any thin, repetitive surface designed to reflect, transmit or absorb electromagnetic fields based on the frequency of the field
Split-ring resonator
a resonator
Negative refraction
electromagnetic property induced by some exotic optical materials