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A near-hollow plasma channel, where the plasma density in the channel is much less than the plasma density in the walls, is proposed to provide independent control over the focusing and accelerating forces in a plasma accelerator. In this…

Plasma Physics · Physics 2013-08-19 Carl B. Schroeder , Eric Esarey , Carlo Benedetti , Wim Leemans

The ability of an intense laser pulse to propagate in a classically over-critical plasma through the phenomenon of relativistic transparency is shown to facilitate the generation of strong plasma magnetic fields. Particle-in-cell…

Plasma Physics · Physics 2018-04-18 Oliver Jansen , Tao Wang , David Stark , Toma Toncian , Alexey Arefiev

Using a three-dimensional quasiclassical technique we explore molecular double ionization by a linearly polarized, infrared (800~nm) 27~fs laser pulse. For intensities ranging from the tunneling to the over-the-barrier regime, we identify…

Atomic Physics · Physics 2011-01-27 A. Emmanouilidou , D. S. Tchitchekova

Phase separations in strongly coupled fine particles in plasmas are discussed and two-component mixtures are simulated by molecular dynamics with the background plasma being treated as continuum. The system size of laboratory experiments is…

Plasma Physics · Physics 2024-05-24 Hiroo Totsuji

This work presents a multidisciplinary mathematical model, as a set of coupled governing equations and auxiliary relations describing the fluid-flow, thermal, and electric fields of partially-ionized plasma with low magnetic Reynolds…

Plasma Physics · Physics 2024-11-01 Osama A. Marzouk

The physics of plasmas containing positive and negative ions is discussed with special attention to the recently produced pair-ion plasma containing ions of equal mass and opposite charge. The effects of the density gradient in the…

Plasma Physics · Physics 2009-11-13 J. Vranjes , D. Petrovic , B. P. Pandey , S. Poedts

Electron and ion acceleration in laser beam driven gas and solid-state plasmas are well-known and thoroughly investigated. Here we propose and numerically investigate an ion acceleration scheme using the Coulomb explosion of ion bunches…

Accelerator Physics · Physics 2025-01-28 Szabolcs Turnár , Zoltán Tibai , László Pálfalvi , Csaba Korpa , Gábor Almási , János Hebling

We propose a new approach to high-intensity laser-driven electron acceleration in a plasma. Here, we demonstrate that a plasma wave generated by a stimulated forward-scattering of an incident laser pulse can be in a longest acceleration…

Plasma Physics · Physics 2014-05-09 A. A. Rukhadze , S. P. Sadykova , T. G. Samkharadze , P. Gibbon

Under strong electric fields, an arc of strong current flowing through plasma can link two metal surfaces even in ultra high vacuum. Despite decades of research, the chain of events leading to vacuum arc breakdowns is hitherto unknown.…

Materials Science · Physics 2022-09-30 Jyri Kimari , Ye Wang , Andreas Kyritsakis , Veronika Zadin , Flyura Djurabekova

The additional pumping of energy into arc plasma flow by the self-consistently formed radially directed beam of high-energy electrons for evaporation of micro-droplets is considered. The radial beam appears near the inner cylindrical…

Plasma Physics · Physics 2020-11-17 A. A. Goncharov , V. I. Maslov , L. V. Naiko

Plasma-based accelerators (PBAs) driven by either intense lasers (laser wakefield accelerators, LWFAs) or particle beams (plasma wakefield accelerators, PWFAs), can accelerate charged particles at extremely high gradients compared to…

In this Letter we investigate factors that influence the effective critical electric field for runaway-electron generation in plasmas. We present numerical solutions of the kinetic equation and discuss the implications for the threshold…

Plasma Physics · Physics 2015-03-20 Adam Stahl , Eero Hirvijoki , Joan Decker , Ola Embréus , Tünde Fülöp

We explore the physics of electron acceleration in a plasma medium in an effective field theory framework. Employing a multiple Compton scattering mechanism, it is found that the acceleration can be sustained in such a medium so as to…

Plasma Physics · Physics 2013-03-07 Ravindra Kumar , V. Ravishankar

Propagation of charged particle beams in background plasma as a method of space charge neutralization has been shown to achieve a high degree of charge and current neutralization and therefore enables nearly ballistic propagation and…

Electrochemical interfaces are of fundamental importance in electrocatalysis, batteries, and metal corrosion. Finite-field methods are one of most reliable approaches for modeling electrochemical interfaces in complete cells under realistic…

Chemical Physics · Physics 2025-06-13 Chaoqiang Feng , Bin Jiang

Plasma high harmonics generation from an extremely intense short-pulse laser is explored by including the effects of ion motion, electron-ion collisions and radiation reaction force in the plasma dynamics. The laser radiation pressure…

Plasma Physics · Physics 2017-05-17 Suo Tang , Naveen Kumar , Christoph H. Keitel

A model of magnetic phase transitions in plasmas is presented: plasma blobs with pressure excess or defect are dia- or para-magnets and move radially under the influence of the background plasma magnetisation. It is found that magnetic…

Plasma Physics · Physics 2013-02-19 Emilia R. Solano , Richard D. Hazeltine

The knowledge of absolute fluxes of reactive species such as radicals or energetic ions to the surface is crucial for understanding the growth or etching of thin films. These species have due to their high reactivity very low densities and…

Plasma Physics · Physics 2011-05-16 Jan Benedikt , Dirk Ellerweg , Achim von Keudell

Over the last decades, significant advances in high-power laser systems have enabled rapid progress in the development of laser-driven plasma accelerators. Today, the results obtained in beam stability and reproducibility present laser…

Accelerator Physics · Physics 2022-05-06 B. Farace , R. J. Shalloo , K. Põder , W. P. Leemans

The interaction of two laser pulses in an underdense plasma has proven to be able to inject electrons in plasma waves, thus providing a stable and tunable source of electrons. Whereas previous works focused on the "beatwave" injection…

Plasma Physics · Physics 2009-02-12 C. Rechatin , J. Faure , A. Lifschitz , X. Davoine , E. Lefebvre , V. Malka