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负折射材料 negative refractive index metamaterials 下载积分:900 内容提示: In 2000, an artificially structured composite was shown to exhibita negative index of refraction over a band of microwavefrequencies1. This demonstration of a previously unexploitedelectromagnetic (EM) property proved the importance...
Negative refractive index metamaterials based on high-permittivity substrates and metallic structure: design, simulation and experiment基于高介电常数基板和金属结构负折射材料的设计,仿真与验证负折射材料负介电常数负磁导率介质谐振器原理By printing single-loop mirror-symmetrical split-ring resonators on high-...
Numerical simulations of wedgeand triangle-shaped metamaterials are used to prove the negative refractive index of the models. The fabricated MTMs exhibit passband characteristics which are in good agreement with the model results. The parametric studies of correlated factors further support these ...
Negative Refractive Index Metamaterials: Principles ApplicationsZoran Jaki NilsDalarsson MilanMaksimovi Wereview structures opticalrange containing 'left-handed' metamaterials artificialcomposites simultaneouslynegative effective permittivity permeabilitywhich achieve negative values refractiveindex. Attention has been ...
These artificially structured composites, known as metamaterials, have the potential to fill critical voids in the electromagnetic spectrum where material response is limited and enable the construction of novel devices. Recently, metamaterials that display negative refractive index – a property not found...
Metamaterials are artificially engineered structures that can have properties, such as negative refractive index, not attainable with naturally occurring materials. The first demonstrations of negative refractive index metamaterials (NIMs) were at microw
Negative refractive index at optical wavelengths: metamaterials are designed to have structures that provide optical properties not found in nature. If their capacity can be extended, new kinds of devices for imaging and control of light will be possible.(PHYSICS)...
A strategy to greatly broaden negative refractive index (NRI) band, reduce loss and ease bi-anisotropy of NRI metamaterials (MMs) has been proposed at terahertz frequencies. Due to the symmetric structure of the MM, the transmission and refractive index are independent to polarizations of incident...
Recently, artificially constructed metamaterials have become of considerable interest because these materials can exhibit electromagnetic characteristics unlike those of any conventional materials. Artificial magnetism and negative refractive index are two specific types of behavior that have been demonstrated over...