326 citations · 864 across the 40 of their papers we have counts for
25 papers · 1 filter
Experimental Demonstration of Dephasing Reduction in an Optically Guided Laser-Plasma Accelerator
Ronan Lahaye, Igor A. Andriyash, Julien Gautier +5
Laser-plasma accelerators offer a compact means of producing high-energy electron beams, but their performance is fundamentally limited by dephasing between the accelerated electro…
Decoupling acceleration and wiggling in a laser-produced Betatron source
Julien Gautier, Igor Andriyash, Andreas Döpp +11
Betatron radiation is produced in Laser Plasma Accelerators when the electrons are accelerated and simultaneously wiggle across the propagation axis. The mechanisms of electron acc…
Empirical scaling laws for self-focused laser pulses in nitrogen plasmas
Lorenzo Martelli, Igor Andriyash, Jonathan Wheeler +3
We investigate the interaction between a superintense laser pulse and a nitrogen plasma with densities exceeding cm, using particle-in-cell simulations. Such conf…
Quasi-monoenergetic multi-GeV electron acceleration in a plasma waveguide
Ronan Lahaye, Kosta Oubrerie, Olena Kononenko +3
Laser-plasma accelerators present a promising alternative to conventional accelerators. To fully exploit the extreme amplitudes of the plasma fields and produce high-quality beams,…
Compton photons at the GeV scale from self-aligned collisions with a plasma mirror
Aimé Matheron, Jean-Raphaël Marquès, Vincent Lelasseux +34
With today's multi-petawatt lasers, testing quantum electrodynamics (QED) in the strong field regime, where the electric field exceeds the Schwinger critical field in the rest fram…
Self-triggered strong-field QED collisions in laser-plasma interaction
Aimé Matheron, Igor Andriyash, Xavier Davoine +6
Exploring quantum electrodynamics in the most extreme conditions, where electron-positron pairs can emerge in the presence of a strong background field, is now becoming possible in…
Highly-efficient electron ponderomotive acceleration in underdense plasmas
Lorenzo Martelli, Olena Kononenko, Igor Andriyash +16
Laser-plasma accelerators represent a promising technology for future compact accelerating systems, enabling the acceleration of tens of pC to above GeV over just a few centim…
Optical ionization effects in kHz laser wakefield acceleration with few-cycle pulses
Joséphine Monzac, Slava Smartsev, Julius Huijts +13
We present significant advances in Laser Wakefield Acceleration (LWFA) operating at a 1 kHz repetition rate, employing a sub-TW, few-femtosecond laser and a continuously flowing hy…
Coherence and superradiance from a plasma-based quasiparticle accelerator
B. Malaca, M. Pardal, D. Ramsey +7
Coherent light sources, such as free electron lasers, provide bright beams for biology, chemistry, physics, and advanced technological applications. Increasing the brightness of th…
Carrier-envelope phase controlled dynamics of relativistic electron beams in a laser-wakefield accelerator
Lucas Rovige, Joséphine Monzac, Julius Huijts +13
In laser-wakefield acceleration, an ultra-intense laser pulse is focused into an underdense plasma in order to accelerate electrons to relativistic velocities. In most cases, the p…
Efficiency and beam quality for positron acceleration in loaded plasma wakefields
C. S. Hue, G. J. Cao, I. A. Andriyash +5
Accelerating particles to high energies in plasma wakefields is considered to be a promising technique with good energy efficiency and high gradient. While important progress has b…
Spatiotemporal dynamics of ultrarelativistic beam-plasma instabilities
P. San Miguel Claveria, X. Davoine, J. R. Peterson +28
An electron or electron-positron beam streaming through a plasma is notoriously prone to micro-instabilities. For a dilute ultrarelativistic infinite beam, the dominant instability…
Bright synchrotron radiation from relativistic self-trapping of a short laser pulse in near-critical density plasma
M. G. Lobok, I. A. Andriyash, O. E. Vais +2
In a dense gas plasma a short laser pulse propagates in relativistic self-trapping mode, which enables effective conversion of laser energy to the accelerated electrons. This regim…
Waveform control of relativistic electron dynamics in an underdense plasma
Julius Huijts, Lucas Rovige, Igor A. Andriyash +6
The interaction of ultra-intense laser pulses with an underdense plasma is used in laser-plasma acceleration to create compact sources of ultrashort pulses of relativistic electron…
Laser-plasma proton acceleration with a combined gas-foil target
Dan Levy, Constantin Bernert, Martin Rehwald +10
Laser-plasma proton acceleration was investigated in the Target Normal Sheath Acceleration (TNSA) regime using a novel gas-foil target. The target is designed for reaching higher l…
Carrier-envelope phase effects in Laser Wakefield Acceleration with near-single-cycle pulses
Julius Huijts, Igor Andriyash, Lucas Rovige +2
Driving laser wakefield acceleration with extremely short, near single-cycle laser pulses is crucial to the realisation of an electron source that can operate at kHz-repetition rat…
Hard X-rays from laser-wakefield accelerators in density tailored plasmas
Michaela Kozlova, Igor Andriyash, Julien Gautier +10
Betatron x-ray sources from laser-plasma accelerators combine compactness, high peak brightness, femtosecond pulse duration and broadband spectrum. However, when produced with Tera…
Transverse instability in the "light sail" ion acceleration
Y. Wan, I. A. Andriyash, W. Lu +2
Acceleration of ultrathin plasma foils by laser radiation pressure promises compact alternatives to the conventional ion accelerators. It was shown, that a major showstopper for su…
Staged laser acceleration of high quality protons from a tailored plasma
Y. Wan, I. A. Andriyash, J. F. Hua +5
A new scheme of proton acceleration from a laser-driven near-critical-density plasma is proposed. Plasma with a tailored density profile allows a two-stage acceleration of protons.…
High-brilliance betatron gamma-ray source powered by laser-accelerated electrons
Julien Ferri, Sébastien Corde, Andreas Döpp +8
Recent progress in laser-driven plasma acceleration now enables the acceleration of electrons to several gigaelectronvolts. Taking advantage of these novel accelerators, ultra-shor…
Laser-plasma interactions with a Fourier-Bessel Particle-in-Cell method
Igor A. Andriyash, Remi Lehe, Agustin Lifschitz
A new spectral particle-in-cell (PIC) method for plasma modeling is presented and discussed. In the proposed scheme, the Fourier-Bessel transform is used to translate the Maxwell e…
An all-optical Compton source for single-exposure X-ray imaging
A. Döpp, E. Guillaume, C. Thaury +8
All-optical Compton sources are innovative, compact devices to produce high energy femtosecond X-rays. Here we present results on a single-pulse scheme that uses a plasma mirror to…
A spectral, quasi-cylindrical and dispersion-free Particle-In-Cell algorithm
Remi Lehe, Manuel Kirchen, Igor A. Andriyash +2
We propose a spectral Particle-In-Cell (PIC) algorithm that is based on the combination of a Hankel transform and a Fourier transform. For physical problems that have close-to-cyli…
X-ray amplification from a Raman Free Electron Laser
Igor Andriyash, Emmanuel D'Humieres, Vladimir Tikhonchuk +1
We demonstrate that a mm-scale free electron laser can operate in the X-ray range, in the interaction between a moderately relativistic electron bunch, and a transverse high intens…