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A photonic metamaterial (PM), also known as an optical metamaterial, is a type of electromagnetic metamaterial, that interacts with light, covering terahertz , infrared (IR) or visible wavelengths. [1] The materials employ a periodic, cellular structure.
Microwave frequency metamaterials are usually constructed as arrays of electrically conductive elements (such as loops of wire) that have suitable inductive and capacitive characteristics. Many microwave metamaterials use split-ring resonators. [5] [6] Photonic metamaterials are structured on the nanometer scale and manipulate light at optical ...
A metamaterial which produces a negative index of refraction.The total array consists of 3×20×20 unit cells with overall dimensions of 10×100×100 millimeters. The history of metamaterials begins with artificial dielectrics in microwave engineering as it developed just after World War II.
Metamaterial cloaking is the usage of metamaterials in an invisibility cloak. This is accomplished by manipulating the paths traversed by light through a novel optical material. Metamaterials direct and control the propagation and transmission of specified parts of the light spectrum and demonstrate the potential to render an object seemingly ...
A one-dimensional photonic crystal can be implemented using repeated alternating layers of a metamaterial and vacuum. [37] If the metamaterial is such that the relative permittivity and permeability follow the same wavelength dependence, then the photonic crystal behaves identically for TE and TM modes , that is, for both s and p polarizations ...
The primary research in metamaterials investigates materials with negative refractive index. Although the first metamaterials were electromagnetic, photonic, acoustic and seismic metamaterials are also areas of active research.
Metamaterials surface antenna technology (M-SAT) is an invention that uses metamaterials to direct and maintain a consistent broadband radio frequency beam locked on to a satellite whether the platform is in motion or stationary.
Functional Metamaterials and Metadevices: Metamaterials are synthesised on the sub-wavelength scale to have optical properties (refractive index, dispersion) that can differ dramatically from those of bulk materials: perfect lenses, cloaking, and negative refractive index materials are examples. CUDOS aims to develop metamaterials that will ...