Solitary waves in a negative index material with dispersive permittivity and permeability
نویسندگان
چکیده
منابع مشابه
Sign of the refractive index in a gain medium with negative permittivity and permeability
We show how the sign of the refractive index in any medium may be derived using a rigorous analysis based on Einstein causality. In particular, we consider left-handed materials, i.e., media that have negative permittivities and permeabilities at the frequency of interest. We find that the consideration of gain in such media can give rise to a positive refractive index. © 2006 Optical Society o...
متن کاملAn Electromagnetic Trinity from “negative Permittivity” and “negative Permeability”
An electromagnetic trinity comprising vacuum, anti–vacuum, and ni-hility is postulated — after making use of materials with " negative per-mittivity " and " negative permeability " — to illuminate the structure of electromagnetic theory, at least insofar as the relationship of phase velocity with Poynting vector is concerned.
متن کاملInstability of nonlinear dispersive solitary waves
We consider linear instability of solitary waves of several classes of dispersive long wave models. They include generalizations of KDV, BBM, regularized Boussinesq equations, with general dispersive operators and nonlinear terms. We obtain criteria for the existence of exponentially growing solutions to the linearized problem. The novelty is that we dealt with models with nonlocal dispersive t...
متن کاملComposite medium with simultaneously negative permeability and permittivity
We demonstrate a composite medium, based on a periodic array of interspaced conducting nonmagnetic split ring resonators and continuous wires, that exhibits a frequency region in the microwave regime with simultaneously negative values of effective permeability &mgr;(eff)(omega) and permittivity varepsilon(eff)(omega). This structure forms a "left-handed" medium, for which it has been predicted...
متن کاملWave propagation in media having negative permittivity and permeability.
Wave propagation in a double negative (DNG) medium, i.e., a medium having negative permittivity and negative permeability, is studied both analytically and numerically. The choices of the square root that leads to the index of refraction and the wave impedance in a DNG medium are determined by imposing analyticity in the complex frequency domain, and the corresponding wave properties associated...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal D
سال: 2011
ISSN: 1434-6060,1434-6079
DOI: 10.1140/epjd/e2011-10288-0