نتایج جستجو برای: left handed materials
تعداد نتایج: 726760 فیلتر نتایج به سال:
We review the research of our group on propagation of electromagnetic waves in photonic crystals (PCs) and micrometer scale left-handed materials (LHMs). The main topics that we focus on regarding PCs are the modification of the spontaneous emission rate of sources embedded into them, their ability to produce beams with high directionality and their negative refraction and focusing properties, ...
A theory of diffraction in the system consisting of the left-handed and the right-handed materials is proposed. The theory is based upon the Huygens's principle and the Kirchhoff's integral and it is valid if the wavelength is smaller than any relevant length of the system. The theory is applied to the calculation of the smearing of the foci of the Veselago lens due to the finite wavelength. We...
We study wave propagation in mixed, 1D disordered stacks of alternating right- and left-handed layers and reveal that the introduction of metamaterials substantially suppresses Anderson localization. At long wavelengths, the localization length in mixed stacks is orders of magnitude larger than for normal structures, proportional to the sixth power of the wavelength, in contrast to the usual qu...
The composite right/left-handed (CRLH) transmission line (TL) is presented as a general TL possessing both left-handed (LH) and right-handed (RH) natures. RH materials have both positive permittivity and positive permeability, and LH materials have both negative permittivity and negative permeability. This paper aims to design and analyze nonlinear CRLH-TL transmission line loaded with resonant...
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