Dispersion Modeling and Analysis for Multilayered Open Coaxial Waveguides

A Fast and Accurate Method for the Analysis of Leaky-Wave modes in Multilayered Planar Open Parallel-Plate Waveguides

Neural Analysis of Top Shielded Multilayered Coplanar Waveguides

Artificial neural networks (ANNs) have been promising tools for many applications. In recent years, a computer-aided design approach based on (ANNs) has been introduced to microwave modelling, simulation and optimization. In this work, the characteristic parameters of top shielded multilayered coplanar waveguides (CPWs) have been determined with the use of ANN models. These neural models were t...

Plasmon dispersion in coaxial waveguides from single-cavity optical transmission measurements.

We determine the plasmon dispersion relation in coaxial waveguides composed of a circular channel separating a metallic core and cladding. Optical transmission measurements are performed on isolated coaxial nanoapertures fabricated on a Ag film using focused ion-beam lithography. The dispersion depends strongly on the dielectric material and layer thickness. Our experimental results agree well ...

Negative refractive index in coaxial plasmon waveguides.

We theoretically show that coaxial waveguides composed of a metallic core, surrounded by a dielectric cylinder and clad by a metal outer layer exhibit negative refractive index modes over a broad spectral range in the visible. For narrow dielectric gaps (10 nm GaP embedded in Ag) a figure-of-merit of 18 can be achieved at lambda(0) = 460 nm. For larger dielectric gaps the negative index spectra...

Multilayered Waveguides with an Embedded Gyrotropic Layer

The material in the resonant layer (RL) of ‘f.1’ consists of nanometer-sized iron particles in an InGaAsP host layer above the InP p-cladding a common 1.55 m multi-quantum well (MQW) laser structure as shown in Table III. InGaAsP has a refractive index of 3.4 which is higher than the refractive index of the InP pclad which is 3.16. These values satisfy the need to have the real part of the refr...