Non-linear surface waves at a single interface of semimagnetic semiconductor–left handed materials (LHM)

The nonlinear characteristics of TE surface waves at microwave frequencies in a layered structure of non-linear semimagneticsemiconductor cover and left-handed material substrate have been investigated. Numerical analysis and derivation were carried out for the dispersion relation in its general form. The power flow has also been studied as a function of wave number for different frequencies and magnetic fields. It is shown that the proposed waveguide structure depends significantly on the operating wave frequency and can be efficiently controlled by varying the frequency

Magnetostatic surface waves on left-handed materials (LHM)

The nonlinear characteristics of magnetostatic surface waves at microwave frequencies in a layered structure of left-handed material film and a semi-infinite linear ferrite substrate have been investigated. The general dispersion relation is derived and analyzed numerically. It is found that it has two solutions for ω (k), one represents a physical solution and other unacceptable. The effects of the applied external magnetic field around the proposed region have also been examined

NONLINEAR TM SURFACE WAVES OF A THREE ANTIFERROMAGNET – SUPERCONDUCTOR STRUCTURE

The characteristics features of TM nonlinear surface waves at infrared frequencies in a layered structure of an antiferromagnet, superconductor and linear dielectric have been performed. The complex wave number of TM surface wave is computed by solving the dispersion equation in order to find out the reduced phase and reduced attenuation index. The effects of the operating angular frequency and temperature of superconductor on the reduced phase and attenuation index have been examined. The power flow has also been studied as a function of the reduced phase and attenuation index for different values of the temperature of superconductor

Sensitivity of Left Handed Material Film-Superconductor Waveguide Sensors

The sensitivity of planar waveguide sensor containing dielectric, superconductor, and left-handed materials has been theoretically investigated. The proposed waveguide sensor in this study consists of a metamaterial film bounded by a dielectric cover and a superconductor substrate. The variation of the sensor sensitivity are found to be strongly depended on the metamaterial film, the film thickness and the temperature of the superconductor

Nonlinear TM surface waves in a left-handed material structure

The nonlinear characteristics of TM surface waves at microwave frequencies in a layered structure of left-handed metamaterial filme, a nonlinear antiferromagnet cover, and a linear dielectric substrate have been performed. The complex wave number of TM surface wave is computed by solving the dispersion equation in order to find out the reduced phase and attenutation constants. The effects of the frequency and nonlinearity of antiferromagnet on the reduced phase and attenuation constants have been examined. The power flow has also been studied as a function of the reduced phase and attenuation constants

NONLINEAR TE SURFACE WAVES IN A LAYERED ANTIFERROMAGNET—SUPERCONDUCTOR WAVEGUIDE STRUCTURE

This paper describes the theoretical characteristics of TE nonlinear transverse electric surface waves propagating at microwave frequencies in a layered structure of superconductor film bounded by an antiferromagnet substrate and a linear ferrite cover. The effects of the operating angular frequency and temperature of superconductor on the dispersion characteristics have been examined. The power flow has also been studied as a function of the reduced phase and attenuation constants

Surface Electromagnetic Waves at a Single Interface of Superconductor and Left-Handed Materials

The wave propagation characteristics along the single interface of superconductor and left-handed materials are investigated theoretically. An expression for the complex permittivity of a superconductor is derived in the approximation o

Nonlinear TM surface waves in a single interface of antiferromagnet and left-handed metamaterial structure

In this paper, nonlinear TM surface wave have been studied theoretically in a single interface of antiferromagnet and LH metamaterial. The complex wave number of TM surface wave is computed by solving the dispersion equation in order to find out reduced phase and attenuation constants. The effects of operating angular frequency (/spl omega/), and non-linearity of antiferromagnet on reduced phase and attenuation constants have been examined. The power flow has also been studied as a function of reduced phase and attenuation constants

Non-Linear Surface Waves in a Left Handed-Magnetized Ferrite Structure

A theoretical investigation of nonlinear surface waves propagating in a planar waveguide structure of a nonlinear Left-handed material (LHM) cover and magnetized Ferrite substrate, has been analyzed. The dispersion relation and the effect of intensity of electric field on the propagation characteristics have been examined. It is found that both of the nonlinearity and the magnetization of Ferrite change the direction of the dispersion curves

Design and Analysis of Waveguide Structure Sensor Based on Nanoparticles

In this communication, we design and analysis a novel waveguide structure sensor based on nanoparticles materials. The results presented can be useful for enhancing the sensitivity of plasmonic—Nanoparticles devices which could be used in further application in Bio sensing and Environmental control