512 citations · 1.2k across the 23 of their papers we have counts for
23 papers
Advanced Shaping of Quasi-Bessel Beams for High-Intensity Applications
Jérôme Touguet, Igor Andriyash, Ronan Lahaye +4
Quasi-Bessel beams produced by axiparabolas are increasingly used in high-intensity laser applications, yet their longitudinal profiles exhibit unwanted oscillations that limit the…
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,…
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…
Use of spatiotemporal couplings and an axiparabola to control axial energy deposition velocity
Aaron Liberman, Ronan Lahaye, Slava Smartsev +5
This paper presents the first experimental realization of a scheme that allows for the tuning of the axial energy deposition velocity of a focal spot with relativistic intensity. B…
Spatiotemporal pulse characterization with far-field beamlet cross-correlation
Slava Smartsev, Sheroy Tata, Aaron Liberman +9
We present a novel, straightforward method for spatiotemporal characterization of ultra-short laser pulses. The method employs far-field interferometry and inverse Fourier transfor…
A Survey of Spatio-Temporal Couplings throughout High-Power Ultrashort Lasers
Antoine Jeandet, Spencer W. Jolly, Antonin Borot +19
The investigation of spatio-temporal couplings (STCs) of broadband light beams is becoming a key topic for the optimization as well as applications of ultrashort laser systems. Thi…
Axiparabola: a new tool for high-intensity optics
Kosta Oubrerie, Igor A. Andriyash, Ronan Lahaye +3
An axiparabola is a reflective aspherical optics that focuses a light beam into an extended focal line. The light intensity and group velocity profiles along the focus are adjustab…
Measurement and Control of Main Spatio-Temporal Couplings in a CPA Laser Chain
Adeline Kabacinski, Kosta Oubrerie, Jean-Philippe Goddet +7
We report a straightforward method to control main spatio-temporal couplings in a CPA laser chain system using a specially designed chromatic doublet in a divergent beam configurat…
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…
Energy-chirp compensation in laser wakefield accelerators
A. Döpp, C. Thaury, E. Guillaume +7
The energy spread in laser-wakefield accelerators is primarily limited by the energy-chirp introduced during the injection and acceleration processes. Here we propose and demonstra…
A bremsstrahlung gamma-ray source based on stable ionization injection of electrons into a laser wakefield accelerator
A. Döpp, E. Guillaume, C. Thaury +11
Laser wakefield acceleration permits the generation of ultra-short, high-brightness relativistic electron beams on a millimeter scale. While those features are of interest for many…
Energy boost in laser wakefield accelerators using sharp density transitions
A. Döpp, E. Guillaume, C. Thaury +3
The energy gain in laser wakefield accelerators is limited by dephasing between the driving laser pulse and the highly relativistic electrons in its wake. Since this phase depends…
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…
Stable and polarized Betatron x-ray radiation from a laser plasma accelerator in ionization injection regime
Andreas Doepp, Benoit Mahieu, Antoine Doche +15
Betatron x-ray source from laser plasma interaction combines high brightness, few femtosecond duration and broad band energy spectrum. However, despite these unique features the Be…
Probing electron acceleration and X-ray emission in laser-plasma accelerator
C. Thaury, K. Ta Phuoc, S. Corde +6
While laser-plasma accelerators have demonstrated a strong potential in the acceleration of electrons up to giga-electronvolt energies, few experimental tools for studying the acce…
Observation of longitudinal and transverse self-injections in laser-plasma accelerators
S. Corde, C. Thaury, A. Lifschitz +7
Laser-plasma accelerators can produce high quality electron beams, up to giga-electronvolts in energy, from a centimeter scale device. The properties of the electron beams and the…
All-optical Compton gamma-ray source
K. Ta Phuoc, S. Corde, C. Thaury +6
One of the major goals of research for laser-plasma accelerators is the realization of compact sources of femtosecond X-rays. In particular, using the modest electron energies obta…
Betatron emission as a diagnostic for injection and acceleration mechanisms in laser-plasma accelerators
S. Corde, C. Thaury, K. Ta Phuoc +9
Betatron x-ray emission in laser-plasma accelerators is a promising compact source that may be an alternative to conventional x-ray sources, based on large scale machines. In addit…
Tuning the electron energy by controlling the density perturbation position in laser plasma accelerators
P. Brijesh, C. Thaury, K. Ta Phuoc +6
A density perturbation produced in an underdense plasma was used to improve the quality of electron bunches produced in the laser-plasma wakefield acceleration scheme. Quasi-monoen…
Mapping the X-Ray Emission Region in a Laser-Plasma Accelerator
S. Corde, C. Thaury, K. Ta Phuoc +13
The x-ray emission in laser-plasma accelerators can be a powerful tool to understand the physics of relativistic laser-plasma interaction. It is shown here that the mapping of beta…