37 citations · 109 across the 26 of their papers we have counts for
25 papers · 1 filter
GEM-PIC-RZ: a Galilean electromagnetic particle-in-cell code in quasi-cylindrical geometry with nonuniform grids
Alexander Pukhov
Laser-plasma accelerators span scales from the micrometre wavelength of the driving laser to acceleration lengths of millimetres or metres. Full particle-in-cell (PIC) simulations…
QUARZ: a quasi-static particle-in-cell code with non-uniform radial grids for plasma wakefields
Alexander Pukhov, Thomas C. Wilson
We present a quasi-static particle-in-cell scheme for beam-driven plasma wakefields in cylindrical geometry that works on an arbitrary non-uniform radial grid. The field equations…
A plasma photocathode for spin-polarized electron beams via state-selected hydrogen halide photofragments
Lars Reichwein, Thomas C. Wilson, Dimitris Sofikitis +6
Spin-polarized electron beams are essential tools for probing fundamental symmetries and for the search beyond the Standard Model. While plasma-based accelerators are a promising p…
Efficient Simulation of Electron-Positron Pair Production in Foam Targets in the low χ-Regime
Oliver Mathiak, Lars Reichwein, Alexander Pukhov
The generation of electron-positron pairs using direct laser-accelerated electrons and a cone-shaped reflector target for the generation of strong electromagnetic fields is investi…
Long Living Hot and Dense Plasma from Relativistic Laser-Nanowire Array Interaction
Ehsan Eftekhari-Zadeh, Mikhail Gyrdymov, Parysatis Tavana +13
Long-living, hot and dense plasmas generated by ultra-intense laser beams are of critical importance for laser-driven nuclear physics, bright hard X-ray sources, and laboratory ast…
Galilean Electromagnetic Particle-in-Cell Code
Alexander Pukhov, Nina Elkina, Tom Wilson
We introduce a Galilean electromagnetic particle-in-cell (GEM-PIC) algorithm, which transforms the full set of Maxwell equations and the Vlasov equation into the boosted coordinate…
Electron-positron pair generation using a single kJ-class laser pulse in a foam-reflector setup
Oliver Mathiak, Lars Reichwein, Alexander Pukhov
We investigate the process of creating electron-positron pairs from laser-matter interaction in pre-ionised foam targets using particle-in-cell simulations. A high-intensity laser…
Laguerre-Gaussian pulses for spin-polarized ion beam acceleration
Lars Reichwein, Tong-Pu Yu, Alexander Pukhov +1
Polarized particle sources have a plethora of applications, ranging from deep-inelastic scattering to nuclear fusion. One crucial challenge in laser-plasma interaction is maintaini…
Interaction of Laguerre-Gaussian laser pulses with borane targets of different hydrogen-boron ratio
Lars Reichwein, Alexander Pukhov, Markus Büscher
We study the interaction of high-intensity Laguerre Gaussian laser pulses with hydrogen-boron compounds targets using 3D particle-in-cell simulations. The ratio of hydrogen to boro…
Fast matter-antimatter separation via Weibel-induced plasma filamentation
Oliver Mathiak, Lars Reichwein, Alexander Pukhov
We study the separation of matter and antimatter driven by the growth of the Weibel instability in a matter-antimatter plasma. The plasma under consideration comprises protons and…
Adiabatic sheath model for beam-driven blowout plasma channels
Yulong Liu, Ming Zeng, Lars Reichwein +1
In plasma wakefield accelerators, the structure of the blowout sheath is vital for the blowout radius and the electromagnetic field distribution inside the blowout. Previous theori…
Plasma acceleration of polarized particle beams
Lars Reichwein, Zheng Gong, Chuan Zheng +3
Spin-polarized particle beams are of interest for applications like deep-inelastic scattering, e.g. to gain further understanding of the proton's nuclear structure. With the advent…
Production and magnetic self-confinement of plasma by an extremely intense laser pulse incident on a structured solid target
Alexander Samsonov, Alexander Pukhov
We propose an all-optical, single-laser-pulse scheme for generating dense, relativistic, strongly-magnetized electron-positron pair plasma. The scheme involves the interaction of a…
Wakefield-driven filamentation of warm beams in plasma
Erwin Walter, John P. Farmer, Martin S. Weidl +2
Charged and quasi-neutral beams propagating through an unmagnetised plasma are subject to numerous collisionless instabilities on the small scale of the plasma skin depth. The elec…
Stable high-transformer ratio beam-wakefield acceleration in cusp plasma channels
Alexander Pukhov, Lars Reichwein
Wakefield excitation by structured electron bunches in hollow gaps between plasma wedges is studied using three-dimensional particle-in-cell simulations. The main part of the elect…
Compact Petawatt-Class Laser Wakefield Acceleration with Plasma Telescope
Xuesong Geng, Liangliang Ji, Baifei Shen
The compactness of laser wakefield acceleration (LWFA) is limited by its long focal length for high power lasers, e.g., more than 10 meters for 1-peatawatt (PW) laser pulse and up…
Spin-polarized He shock waves from a solid-gas composite target at high laser intensities
Lars Reichwein, Xiaofei Shen, Alexander Pukhov +1
We investigate Collisionless Shock Acceleration of spin-polarized He for laser pulses with normalized vector potentials in the range . The setup utilized in th…
Electron and ion acceleration from femtosecond laser-plasma peeler scheme
X. F. Shen, A. Pukhov, B. Qiao
Using three-dimensional particle-in-cell simulations, we further investigate the electron and ion acceleration from femtosecond laser-plasma peeler scheme which was proposed in our…
Spatial profile of accelerated electrons from ponderomotive scattering in hydrogen cluster targets
B. Aurand, L. Reichwein, K. M. Schwind +10
We study the laser-driven acceleration of electrons from overdense hydrogen clusters to energies of up to 13 MeV in laser forward direction and several hundreds of keV in an outer…
On the robustness of spin polarization for magnetic vortex accelerated proton bunches in density down-ramps
Lars Reichwein, Anna Hützen, Markus Büscher +1
We investigate the effect of density down-ramps on the acceleration of ions via Magnetic Vortex Acceleration (MVA) in a near-critical density gas target by means of particle-in-cel…
High current well-directed beams of super-ponderomotive electrons for laser driven nuclear physics applications
O. N. Rosmej, M. Gyrdymov, M. M. Günther +14
We report on new findings in a laser driven enhanced electron beam generation in the multi MeV energy range at moderate relativistic laser intensities and their applications. In ou…
Strong Ionization in carbon Nanowires
Vural Kaymak, Alexander Pukhov, Vyacheslav N. Shlyaptsev +1
Surfaces covered with nanostructures, such as nanowire arrays, have shown to facilitate a significantly higher absorption of laser energy as compared to flat surfaces. Due to the e…
Raman amplification in the coherent wavebreaking regime
John P. Farmer, Alexander Pukhov
In regimes far beyond the wavebreaking threshold of Raman amplification, we show that significant amplifcation can occur after the onset of wavebreaking, before phase mixing destro…
Simulations of stable compact proton beam acceleration from a two-ion-species ultrathin foil
T. P. Yu, A. Pukhov, G. Shvets +4
We report stable laser-driven proton beam acceleration from ultrathin foils consisting of two ion species: heavier carbon ions and lighter protons. Multi-dimensional particle-in-ce…