Vol 16, No 2 (2013)

We investigate the ability of interference absorption control in thin magnetic films. This control is obtained by variation of external magnetic field and phase difference of counter propagating waves. Depending upon this parameters, ferromagnetic film can be observed as material with low and high level of absorption. Thus, when the radiation passes through the magnetic layer there are possible both the total absorption energy and the process without energy dissipations.

The dynamics of two initially entangled artificial atoms with degenerate two-photon transitions interacting with superconducting LC -circuit in the thermal state has been investigated. The influence of intial degree of qubits states coherence and dipole-dipole interaction on the degree of entanglement.

In the article dispersion characteristics and attenuation characteristics plasmon-polariton waves cylindrical metal guiding structures are discussed. Schedules of distribution of electric field on radial coordinate are provided. Difference of a range of waves of a cylindrical metal wire from a range of waves of an open round dielectric waveguide with a metal film is shown. Identification of plasmon-polariton waves by quantity of maxima of an electric field in a metal layer is offered.

A numerical model of self-oscillating system with a differential equation of motion of fractional order is designed. The results of modeling transient process of self-oscillations are presented. There compare with the analytical results are obtained in the quasi-harmonic approximation.

With use of frequency and angular characteristics of flat aperture antennas by transfer reception of non-harmonic signals dispersion of an assessment of coordinates of radiators of sequences of super-broadband impulses is found in measuring systems of a fixing.

A following article runs about carbon films, their physical properties, deposition conditions and structure; advantages and disadvantages of carbon diamond-like films; à field of application; physical vapor deposition methods (PVD). A model of bound carbon atoms, implanted in an amorphous carbon matrix comes forward. According to the model, a limitation of a matrix temperature is a necessary and sufficient condition. A model of sp^3 bounding allows to estimate the whole understanding of PVD mechanism applied not only for carbon films, but also for other substances.

In this article the cylindrical spiral antenna with a linear winding pitch that is placed over the perfectly conductive surface is considered. It was shown that with such statement this problem of current’s distribution in a spiral is reduced to a solving of a singular integral equation. To compare a mathematical model of spiral antenna for the thin wire approach was represented. The algorithm of integral equations is considered. The comparative analysis of the current’s distribution in a spiral is performed.

The correlation, connecting concentrations of free carriers of charge in unmagnetized semiconductor plasma in equilibrium, is derived. The correlation is derived from the conditions, that current densities of conductance electrons and holes are equal to zero.

In the article physical and mathematical process models of secondary electronic emission of secondary electrons, wrested from hurled when irradiating a surface of metal by the flow of primary electrons are considered. Analysis of processes, running in the efficient emitters at the condition of irradiating by scanning bunch and choice necessary hardware and technical facilities has been offered. It has been considered an inaccuracy of measurement of secondary electronic emission factor under different checking. The theoretical motivations for the building mathematical models of leaving the secondary electrons from the solid-state under the action of falling on it flow of primary electrons are considered. On mathematical models, based on the result of deciding a kinetic equation, an algorithm of calculation of true secondary electronic emission factor depending on energy of primary electrons has been designed. A structured scheme of automated software-technical complex, allowing measure a factor of secondary electronic emission of different material with the high degree of validity are stated.