Elaboration of a Specific Class of Metamaterial: Glass in Single Crystal

摘要: Metamaterials are composite materials, which can exhibit some interesting optical properties, is usually not found in natural materials. Some examples of the properties that be obtained and controlled these materials negative refraction artificial magnetism [1, 2]. The wave vector k a propagating through such left-handed substance anti-parallel to its Poynting-vector S. This remarkable property has far-reaching consequences. Usually have periodic or quasi-periodic structure. Such photonic metacrystals composed assembly dielectric metallo-dielectric structures designed affect propagation electromagnetic waves. In particular, they should indices significantly different. unidimensional as multilayered two-dimensional with periodically spaced rods fibers aligned arrays, 3D like silica spheres Opal. When characteristic length scale constituting elements much smaller than radiation wavelength, called crystals (PC). because avoid diffraction. passing PC will feel only effective parameters material magnetic permeability, permittivity, etc. They therefore good approximation considered continuous media electrodynamic properties. For reasons, metamaterials do necessarily possess band gap (PBG), striking difference compared PCs. Nevertheless it look for possibilities opening up PBG, extensive applications also better insight into [3, 4]. There various methods fabricate ordered composites metamaterials. collected, instance, book Nanophotonics by Prasad [5] Chemistry Nanomaterials Rao et al.[1]. classified two categories, those, carried out engineering, self-organization. former category, there techniques including nanolithography, deposit multilayer films (CVD, Langmuir-Blodget) most commonly practiced method preparing largely based on lithography, uses pre-fabricated photo mask master from final pattern derived. Self-organization an