45 citations · 221 across the 16 of their papers we have counts for
17 papers · 1 filter
Electromagnetic drift-kinetic particle-in-cell model with energy and charge conservation for studying finite- plasmas
O. P. Morozov, V. A. Kurshakov, I. V. Timofeev
The paper proposes a generalization of the fully implicit energy- and charge-conserving electromagnetic particle-in-cell method to the case where the lightest type of plasma partic…
A fully implicit electromagnetic energy- and charge-conserving PIC model for simulations of high- plasma
V. A. Kurshakov, I. V. Timofeev
The paper presents a 3D numerical model of plasma in which a fully implicit PIC method with exact conservation of global energy and local charge is generalized to the electromagnet…
Drift-kinetic PIC model for simulations of longitudinal plasma confinement in mirror traps
V. V. Glinskiy, I. V. Timofeev, V. V. Prikhodko
The paper presents a 1D2V electrostatic PIC model with a drift-kinetic description of all particle types aiming at simulating classical longitudinal plasma transport in axially sym…
Electromagnetic emission from plasma with counter-streaming electron beams in the regime of oblique instability dominance
Vladimir Annenkov, Evgeniia Volchok, Igor Timofeev
The problem of electromagnetic emission generation in plasma with electron beams is relevant both for practical applications and for interpretation of radio emission processes in a…
Electromagnetic emission due to nonlinear interaction of laser wakefields colliding in plasma at an oblique angle
E. Volchok, V. Annenkov, I. Timofeev
Head-on collision of laser-induced plasma wakefields with differing profiles of electrostatic potential has been recently found to be an efficient mechanism for generating high-pow…
Electromagnetic Emission Produced by Three-wave Interactions in a Plasma with Continiously Injected Counterstreaming Electron Beams
V. V. Annenkov, E. P. Volchok, I. V. Timofeev
Three-wave interactions between Langmuir and electromagnetic waves in plasma with unstable electron flows are believed to be the main cause for type II and III solar radio emission…
Highly efficient electromagnetic emission during 100 keV electron beam relaxation in a thin magnetized plasma
V. V. Annenkov, I. V. Timofeev, E. P. Volchok
In this paper, electromagnetic emissions produced by a beam-plasma system are investigated using particle-in-cell simulations for the particular case when the typical transverse si…
Second harmonic electromagnetic emission in a beam-driven plasma antenna
V. V. Annenkov, E. A. Berendeev, E. P. Volchok +1
Generation of electromagnetic radiation near the second harmonic of the plasma frequency during the injection of an electron beam into a rippled-density plasma channel is investiga…
Dissipation of weakly nonlinear wakefields due to ion motion
R. I. Spitsyn, I. V. Timofeev, A. P. Sosedkin +1
In an initially uniform plasma, the lifetime of a weakly nonlinear plasma wave excited by a short driver is limited by the ion dynamics. The wakefield contains a slowly varying rad…
Generation of high-field narrowband terahertz radiation by counterpropagating plasma wakes
I. V. Timofeev, V. V. Annenkov, E. P. Volchok
It is found that nonlinear interaction of plasma wakefields driven by counterpropagating laser or particle beams can efficiently generate high-power electromagnetic radiation at th…
Simulations of electromagnetic emissions produced in a thin plasma by a continuously injected electron beam
V. V. Annenkov, I. V. Timofeev, E. P. Volchok
In this paper, electromagnetic emissions produced in a thin beam-plasma system are studied using two-dimensional particle-in-cell simulations. For the first time, the problem of em…
Note on quantitatively correct simulations of the kinetic beam-plasma instability
K. V. Lotov, I. V. Timofeev, E. A. Mesyats +2
A large number of model particles is shown necessary for quantitatively correct simulations of the kinetic beam-plasma instability with the clouds-in-cells method. The required num…
Exact kinetic theory for the instability of an electron beam in a hot magnetized plasma
I. V. Timofeev, V. V. Annenkov
Efficiency of collective beam-plasma interaction strongly depends on the growth rates of dominant instabilities excited in the system. Nevertheless, exact calculations of the full…
Modulational instability of a Langmuir wave in plasmas with energetic tails of superthermal electrons
I. V. Timofeev
The impact of superthermal electrons on dispersion properties of isotropic plasmas and on the modulational instability of a monochromatic Langmuir wave is studied for the case when…
Generation of powerful terahertz emission in a beam-driven strong plasma turbulence
A. V. Arzhannikov, I. V. Timofeev
Generation of terahertz electromagnetic radiation due to coalescence of upper-hybrid waves in the long-wavelength region of strong plasma turbulence driven by a high-current relati…
Two-dimensional simulations of nonlinear beam-plasma interaction in isotropic and magnetized plasmas
I. V. Timofeev
Nonlinear interaction of a low density electron beam with a uniform plasma is studied using two-dimensional particle-in-cell (PIC) simulations. We focus on formation of coherent ph…
Second harmonic electromagnetic emission of a turbulent magnetized plasma driven by a powerful electron beam
I. V. Timofeev
The power of second harmonic electromagnetic emission is calculated for the case when strong plasma turbulence is excited by a powerful electron beam in a magnetized plasma. It is…