We analyze nonlinear guided waves in a planar waveguide made of a left-handed material surrounded by a Kerr-like nonlinear dielectric, and predict that such a waveguide can support fast and slow symmetric and antisymmetric nonlinear modes. We study the symmetry breaking bifurcation and asymmetric modes in such a symmetric structure. The analysis of nonlinear dispersion properties of the guided ...

Failure mode characterization was applied to coplanar transmission lines by utilizing 0.5–10-GHz S-parameter measurements and post-calculated TDR (Time-Domain-Reflectometry) analysis. Coplanar waveguide transmission lines were inkjet-printed on 1.0-mmthick flexible plastic RF substrates. Inductive, resistive, and capacitive types of failures — as the main failure modes caused by manufacturing, ...

This paper presents a tapered dielectric rod antenna excited by folded dipole coplanar waveguide operating at terahertz frequencies. The effective refractive index of the plasmonic transmission line is obtained two numerical methods, Finite Element Method and Finite-Difference Time-Domain, it used to obtain dimensions gap connected line. We examine using lengths rod. For 10 5 μm rods, impedance...

We study the scattering of acoustic waves by an obstacle embedded in a uniform waveguide with planar boundaries, which is a fundamental model in shallow ocean acoustics. Under certain geometric assumptions on the shape of the obstacle, we prove a Rellichtype uniqueness theorem in the case of soft obstacles. The solvability of the scattering problem is proved via boundary integral equations and ...

We investigate the photonic properties of one dimensional photonic crystals realized on Silicon On Insulator channel slot-waveguide to engineer slow light effects. Various geometries of the photonic pattern have been characterized and their photonic band-gap structure analyzed. The optimal geometry has been further used to realize a coupled resonator optical waveguide (CROW). A first optimizati...

A single-photon optical diode operates on individual photons and allows unidirectional propagation of photons. By exploiting the unique polarization configuration in a waveguide, we show here that a single-photon optical diode can be accomplished by coupling a quantum impurity to a passive, linear optical waveguide which possesses a locally planar, circular polarization. We further show that th...

This work is devoted to a brief exposition of experimental foundations to assume the new type of X-ray propagation through a narrow extended slit. It is experimentally shown that the high intensity of its emergent beam is not connected with the mechanism of free radiation propagation and with multiple total reflection of the beam. This type of X-ray passing we associate with the waveguide-reson...