Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime
Wei Lu,Michail Tzoufras,C. Joshi,Frank Tsung,Warren Mori,Jorge Vieira,Ricardo Fonseca,Luis O. Silva +7 more
TLDR
In this article, a phenomenological framework for laser wakefield acceleration (LWFA) in the 3D nonlinear regime was developed, in which the plasma electrons are expelled by the radiation pressure of a short pulse laser, leading to nearly complete blowout.Abstract:
The extraordinary ability of space-charge waves in plasmas to accelerate charged particles at gradients that are orders of magnitude greater than in current accelerators has been well documented. We develop a phenomenological framework for laser wakefield acceleration (LWFA) in the 3D nonlinear regime, in which the plasma electrons are expelled by the radiation pressure of a short pulse laser, leading to nearly complete blowout. Our theory provides a recipe for designing a LWFA for given laser and plasma parameters and estimates the number and the energy of the accelerated electrons whether self-injected or externally injected. These formulas apply for self-guided as well as externally guided pulses (e.g. by plasma channels). We demonstrate our results by presenting a sample particle-in-cell (PIC) simulation of a $30\text{ }\mathrm{fs}$, 200 TW laser interacting with a 0.75 cm long plasma with density $1.5\ifmmode\times\else\texttimes\fi{}{10}^{18}\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}3}$ to produce an ultrashort (10 fs) monoenergetic bunch of self-injected electrons at 1.5 GeV with 0.3 nC of charge. For future higher-energy accelerator applications, we propose a parameter space, which is distinct from that described by Gordienko and Pukhov [Phys. Plasmas 12, 043109 (2005)] in that it involves lower plasma densities and wider spot sizes while keeping the intensity relatively constant. We find that this helps increase the output electron beam energy while keeping the efficiency high.read more
Citations
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Self-guided wakefield experiments driven by petawatt class ultra-short laser pulses
Stuart Mangles,A. G. R. Thomas,Claudio Bellei,A. E. Dangor,Christos Kamperidis,Stefan Kneip,Sabrina Nagel,Louise Willingale,Zulfikar Najmudin +8 more
TL;DR: In this paper, the authors investigate the extension of self-injecting laser wakefield experiments to the regime that will be accessible with the next generation of petawatt class ultra-short pulse laser systems.
Journal Article
Self-Steepening of intense laser pulses in plasmas
Journal ArticleDOI
Estimation of direct laser acceleration in laser wakefield accelerators using particle-in-cell simulations
TL;DR: In this paper, the authors investigated the contribution of DLA to the final energies of the electrons produced from the LWFA and found that even at the highest longitudinal resolutions, DLA contributes a significant portion of the energy gained by the highest-energy electrons and also contributes to accelerating the bulk of the charge in the electron beam produced by the LW FA.
Journal ArticleDOI
Energy boost in laser wakefield accelerators using sharp density transitions
TL;DR: In this article, the authors derived expressions for the electron energy gain in such density profiles, and presented gain estimations for single and multiple stages of rephasing in particle-in-cell simulations.
Journal ArticleDOI
Bright γ rays source and nonlinear Breit-Wheeler pairs in the collision of high density particle beams
TL;DR: In this article, the authors show that beam-beam collisions can be exploited as secondary sources of photon rays and provide an alternative to beam-laser setups to probe quantum electrodynamics effects at the Schwinger limit.
References
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Laser Electron Accelerator
Toshiki Tajima,John M. Dawson +1 more
TL;DR: In this paper, an intense electromagnetic pulse can create a weak of plasma oscillations through the action of the nonlinear ponderomotive force, and electrons trapped in the wake can be accelerated to high energy.
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A laser-plasma accelerator producing monoenergetic electron beams
Jérôme Faure,Y. Glinec,Alexander Pukhov,Sergey Kiselev,Sergey Gordienko,Erik Lefebvre,Jean-Philippe Rousseau,Frédéric Burgy,Victor Malka +8 more
TL;DR: It is demonstrated that this randomization of electrons in phase space can be suppressed and that the quality of the electron beams can be dramatically enhanced.
Journal ArticleDOI
High-quality electron beams from a laser wakefield accelerator using plasma-channel guiding
C. G. R. Geddes,C. G. R. Geddes,Cs. Toth,van J Jeroen Tilborg,van J Jeroen Tilborg,Eric Esarey,Carl Schroeder,David L. Bruhwiler,Chet Nieter,John R. Cary,Wim Leemans +10 more
TL;DR: A laser accelerator that produces electron beams with an energy spread of a few per cent, low emittance and increased energy (more than 109 electrons above 80 MeV) and opens the way for compact and tunable high-brightness sources of electrons and radiation.