Bremsstrahlung polarization in the Aharonov-Bohm effect
Bremsstrahlung polarization in the Aharonov-Bohm effect
D.V. Gal'tsov, S.A. Voropaev
Radiative scattering of a relativistic spinless quantum particle by a constant magnetic flux of a thin solenoid is examined. The influence of the Aharonov-Bohm effect on circular polarization of radiation is analyzed.
Show AbstractLong-wave perturbations in a transmission line with magnetic insulation
Long-wave perturbations in a transmission line with magnetic insulation
O.I. Vasilenko
Consideration is given to the propagation of long-wave perturbations in a longitudinally uniform and magnetically insulated electron flow in a strip line. The speed of perturbation propagation has been found and the applicability limit of the results has been studied.
Show AbstractKinetic theory of excitation of a broad helical wave spectrum by a non-monoenergetic electron beam in a finite magnetic field under conditions of anomalous Doppler effect
Kinetic theory of excitation of a broad helical wave spectrum by a non-monoenergetic electron beam in a finite magnetic field under conditions of anomalous Doppler effect
M.V. Kuzilev, R.V. Romanov
A nonlinear theory of excitation of a broad electromagnetic helical wave spectrum by a hot electron beam in a finite magnetic field under conditions of anomalous Doppler effect is described. The instability stabilization mechanism has been elucidated. The results of numerical calculations and of analytical solutions are presented.
Show Abstract"Superresolution" of classical signals in nonstationary quantum noise
"Superresolution" of classical signals in nonstationary quantum noise
A.V. Gusev, V.V. Kulagin
A method based on superresolution algorithm is proposed for restoring signals in nonstationary noise with a frequency-dependent compression. The maximum attainable accuracy of restoration rises with increasing noise compression coefficient.
Show AbstractAngular and energy distributions of secondary ions sputtered from polycristals
Angular and energy distributions of secondary ions sputtered from polycristals
V.M. Bukhanov, K.F. Minnebaev, I.F. Urazgil'din, V.S. Chernysh
The results of experimental investigation of the angular and energy distributions of secondary ions sputtered from aluminum polycrystals under argon ion bombardment are presented. Some conclusions have been drawn concerning the applicability of various sputtering and ion emission models.
Show AbstractLight diffraction on 3D phase gradings; the waveguide mode
Light diffraction on 3D phase gradings; the waveguide mode
A.L. Aleksandrovskii, V.V. Tarasenko
Taking into account perturbation of the wave number which corresponds to the "smearing" of the wave surface enables us to determine the waveguide mode of diffraction. The waveguide mode occurs when a perturbation overlaps the detunings.
Show AbstractThe effect of the Raman contribution to nonlinear susceptibility on the femtosecond soliton propagation
The effect of the Raman contribution to nonlinear susceptibility on the femtosecond soliton propagation
V.A. Vysloukh, A.N. Matveev, I.Yu. Petrova
The effect of the Raman contribution to nonlinear susceptibility on the propagation of femtosecond optical solitons in lightguide fibers has been studied by numerical experimental methods. The results reveal the dependence of the self-frequency shift of a soliton pulse on the Raman scattering line parameters.
Show AbstractExcitation energy storage and transfer in phosphors based on barium fluorohalides
Excitation energy storage and transfer in phosphors based on barium fluorohalides
A.M. Gurvich, V.V. Mikhailin, M.G. Myagkova, M.A. Terekhin
The excitation spectra and the luminescence energy yield from non-activated and Eu- and Sm-activated BaFCl and BaFBr measured by the synchrotron radiation method are presented. The features of the light sum storage and emission by these phosphors and the effect of an excess of $BaF_2$ and the Fe, Co, Ni, Cu, and Pr impurities are discussed.
Show AbstractSaturation effect in nonstationary active spectroscopy: three-wave model
Saturation effect in nonstationary active spectroscopy: three-wave model
S.Yu. Nikitin, L.P. Platonov
This work develops a three-wave model of the saturation effect in nonstationary active Raman spectroscopy which allows for simultaneous scattering of a probing laser pulse in the Stokes and anti-Stokes regions. A formula has been obtained to estimate the Raman scattering cross section from measured parameters.
Show AbstractResonance motions of ring particles of an oblate planet
Resonance motions of ring particles of an oblate planet
I.A. Gerasimov, B.R. Mushailov
Solutions which describe the orbital evolution of ring particles for the first-order resonances have been obtained in terms of a restricted planar three-body problem where the central body is a symmetric spheroid.
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