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Plasma current filamentation of an ultrarelativistic electron beam impinging on an overdense plasma is investigated, with emphasis on radiation-induced electron polarization. Particle-in-cell simulations provide the classification and…

等离子体物理 · 物理学 2023-01-18 Zheng Gong , Karen Z. Hatsagortsyan , Christoph H. Keitel

We study the effect of the electromagnetic environment on the resonance frequency of plasmonic excitations in dimers of interacting metallic nanoparticles. The coupling between plasmons and vacuum electromagnetic fluctuations induces a…

介观与纳米尺度物理 · 物理学 2017-10-11 Charles A. Downing , Eros Mariani , Guillaume Weick

We have performed three dimensional nonlinear fluid simulations of electron fluid turbulence at nanoscales in an unmagnetized warm dense plasma in which mode coupling between wave function and electrostatic potential associated with…

等离子体物理 · 物理学 2009-11-13 Dastgeer Shaikh , P. K. Shukla

This paper summarizes the studies of plasma kinetic instabilities in the electron cyclotron frequency range carried out over the last decade at the Institute of Applied Physics of Russian Academy of Sciences. We investigate the…

等离子体物理 · 物理学 2017-03-22 A G Shalashov , M E Viktorov , D A Mansfeld , S V Golubev

Electron and phonon transient temperatures are analyzed in the case of nondegenerate semiconductors. An analytical solution is obtained for rectangular laser pulse absorption. It is shown that thermal diffusion is the main energy relaxation…

A study of the effects of non-extensivity on the modelling of atomic physics in hot dense plasmas is proposed within Tsallis' statistics. The electronic structure of the plasma is calculated through an average-atom model based on the…

等离子体物理 · 物理学 2015-05-30 Jean-Christophe Pain , Denis Teychenné , Franck Gilleron

We report on the experimental study of the spectrum of plasma excitations in a plasmonic crystal fabricated from the two-dimensional electron system in an AlGaAs/GaAs semiconductor heterostructure. We perform a comprehensive research on the…

In this paper the experimental fact of presence of ionic - sound oscillations in plasma of tokamak DIII-D is given for plasma with additional heating by means of a neutral hydrogen beam. It contradicts modern theoretical representations…

等离子体物理 · 物理学 2014-05-15 V. A. Rantsev-Kartinov , A. N. Kulakov

We show that in a neutral magnetized plasma there exist microscopic oscillatory modes, with wavelengths of the order of magnitude of the mean interparticle distance, which become unstable when the electron density exceeds a limit…

等离子体物理 · 物理学 2010-06-24 M. Marino , M. Zuin , A. Carati , E. Martines , L. Galgani

The system of equations of electromagnetic self-consistency in a plasma is analytically solved for the case of a two-component homogeneous plasma in the non-relativistic approximation.

等离子体物理 · 物理学 2007-05-23 Evangelos Chaliasos

High-order harmonic generation via single-slit diffraction of relativistic laser pulses is investigated. Using fully kinetic 2D and 3D particle-in-cell simulations, we show that interesting optical phenomena emerge, including the generation…

等离子体物理 · 物理学 2025-05-07 Longqing Yi

The expansion of a radial blast shell into an ambient plasma is modeled with a particle-in-cell (PIC) simulation. The unmagnetized plasma consists of electrons and protons. The formation and evolution of an electrostatic shock is observed,…

等离子体物理 · 物理学 2017-08-29 M E Dieckmann , D Doria , H Ahmed , L Romagnani , G Sarri , D Folini , R Walder , A Bret , M Borghesi

The collision frequencies of electron-neutral-particle in the weakly ionized complex plasmas with the non-Maxwellian velocity distributions are studied. The average collision frequencies of electron-neutral-particle in the plasmas are…

等离子体物理 · 物理学 2021-08-31 Hong Wang , Jiulin Du , Rui Huo

Longitudinal and transverse behavior of magnetic field of relativistic nonlinear three-dimensional plasma wave is investigated. It is shown that the magnetic field of the wave is different from zero and performs higher frequency…

等离子体物理 · 物理学 2009-11-06 A. G. Khachatryan

Thomson scattering in non-ideal (collision-dominated) two-component plasmas is calculated accounting for electron-ion collisions as well as electron-electron correlations. This is achieved by using a novel interpolation scheme for the…

等离子体物理 · 物理学 2013-05-29 Carsten Fortmann , August Wierling , Gerd Röpke

Current advances in ultrafast electron microscopy make it possible to combine optical pumping of a nanostructure and electron beam probing with sub{\aa}ngstrom and femtosecond spatiotemporal resolution. We present a theory predicting that…

The amplitude equation for an unstable electrostatic wave in a multi-species Vlasov plasma has been derived. The dynamics of the mode amplitude $\rho(t)$ is studied using an expansion in $\rho$; in particular, in the limit…

patt-sol · 物理学 2009-10-30 John David Crawford , Anandhan Jayaraman

This paper provides a complete self-consistent nonlinear theory for electron plasma waves, within the framework of the adiabatic approximation. The theory applies whatever the variations of the wave amplitude, provided that they are slow…

等离子体物理 · 物理学 2022-05-25 M. Tacu , D. Bénisti

The present article is devoted to the study of the dynamics of narrowband wave fields within the non-integrable Schamel equation, which plays an important role in plasma physics, wave dynamics in metamaterials, and electrical circuits. A…

流体动力学 · 物理学 2024-09-02 Marcelo V. Flamarion , Efim Pelinovsky , Ekaterina Didenkulova

The expansion of ultracold neutral plasmas (UCP) is driven primarily by the thermal pressure of the electron component and is therefore sensitive to the electron temperature. At lower densities (less than 10$^8$ /cm$^3$), evaporative…

等离子体物理 · 物理学 2015-06-15 Truman Wilson , Wei-Ting Chen , Jacob Roberts