Magnetic photonic crystals are spatially periodic dielectric composites with at least one of the constitutive components being a magnetically polarized material. We show that the electrodynamic properties of magnetic photonic crystals with proper configuration correspond to those of hypothetical media with huge linear magnetoelectric effect. In particular, such composites can display strong asy...

Scanning probe microscopes are widely used to study surfaces with atomic resolution in many areas of nanoscience. Ultracold atomic gases trapped in electromagnetic potentials can be used to study electromagnetic interactions between the atoms and nearby surfaces in chip-based systems. Here we demonstrate a new type of scanning probe microscope that combines these two areas of research by using ...

[7] 1.. Lewin, “Propagation in curved and twisted waveguides of rectam jyrlar cross-section,” in Proc. Inst. E[ectr. Eng., 1955, vol. 102, B,’ 1, pp. 75-80. 1.. Lewin and T. Ruehle, “Propagation in twisted square waveguide,” IEEE Trans. Microwave Theoiy Tech., vol. MTT-28, pp. 44–48, 1980. 1.. Lewin, Theory of Waveguides. London: Newnes-Butherworths, 1.975,pp. 96-101. 1.. Lew~n, D. C. Chang, an...

We reevaluate the hadronic part of the electromagnetic vacuum expectation value using the standard dispersion integral approach that utilizes the hadronic cross section measured in e + e − experiments as input. Previous analyses are based upon point-by-point trapezoidal integration which does not treat experimental errors in an optimal way. We use a technique that weights the experimental input...

A bstract We compute the electromagnetic mass difference for B -, D - and K -mesons using QCD sum rules with double dispersion relations. For we also linear quark correction, whereas standard soft theorems prove more powerful. The differences, which have not previously been computed via a dispersion, are fully consistent experiment, albeit large uncertainties.

The dispersion relation is fundamental to a physical phenomenon that develops in both space and time. This equation connects the spatial and temporal frequencies involved in the dynamic process through the material constants. Electromagnetic plane waves propagating in homogeneous media are bound by simple dispersion relation, which sets the magnitude of the spatial frequency, k, as being propor...

We analyze the effect of dispersion of radio waves in the Earth’s ionosphere on the performance (image resolution) of spaceborne synthetic aperture radars (SARs). We describe the electromagnetic propagation in the framework of a scalar model for the transverse field subject to weak anomalous dispersion due to the cold plasma. Random contributions to the refraction index are accounted for by the...

A simple equivalent circuit model for the analysis of dispersion and interaction impedance characteristics of serpentine folded-waveguide slow-wave structure was developed by considering the straight and curved portions of structure supporting the dominant TE10-mode of the rectangular waveguide. Expressions for the lumped capacitance and inductance per period of the slow-wave structure were der...

We calculate the nucleonic and pionic dispersion relations at finite temperature (T ) and non-vanishing chemical potentials (μf ) in the context of an effective chiral theory that describes the strong and electromagnetic interactions for nucleons and pions. The dispersion relations are calculated in the broken chiral symmetry phase, where the nucleons are massive and pions are taken as massless...

19 Waves in Cold Plasmas: Two-Fluid Formalism 1 19.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 19.2 Dielectric Tensor, Wave Equation, and General Dispersion Relation . . . . . 3 19.3 Wave Modes in an Unmagnetized Plasma . . . . . . . . . . . . . . . . . . . . 5 19.3.1 Two-Fluid Formalism . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 19.3.2 ...