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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Journal ArticleDOI
A filter or oscillator by a simple density hump for an intense laser propagating in a preformed plasma channel
Lei Zhang,Lei Zhang,Rong-An Tang,Xue-Ren Hong,Ji-Ming Gao,Li-Ru Yin,Jian-Min Tian,Rui-Jin Cheng,Ju-Kui Xue +8 more
TL;DR: Considering the relativistic self-focusing, the ponderomotive self-channel, and the preformed channel focusing, the effect of a density hump on the laser propagation in a preformed plasma channel was investigated in this article.
Journal ArticleDOI
Radiation pressure injection in laser-wakefield acceleration
TL;DR: In this paper, the authors investigated the injection of electrons in laser-wakefield acceleration induced by a self-modulated laser pulse by a two dimensional particle-in-cell simulation.
Proceedings ArticleDOI
All-optical control of electron trapping in plasma channels
TL;DR: The negative group velocity dispersion associated with the plasma response compresses the laser pulse into a relativistic optical shock (ROS), slowing the pulse and the bucket, reducing the electron dephasing length, and limiting energy gain this paper.
Journal ArticleDOI
Electron energy increase in a laser wakefield accelerator using up-ramp plasma density profiles.
Constantin Aniculaesei,Vishwa Bandhu Pathak,Hyung Taek Kim,Kyung Hwan Oh,Byung Ju Yoo,Enrico Brunetti,Yong Ha Jang,Calin Ioan Hojbota,Jung Hun Shin,Jong Ho Jeon,Seongha Cho,Myung Hoon Cho,Jae Hee Sung,Seong Ku Lee,Bjorn Hegelich,Chang Hee Nam +15 more
TL;DR: Particle-in-cell simulations show that a ramp in a plasma density profile can affect the evolution of the wakefield, thus qualitatively confirming the experimental results.
Journal ArticleDOI
Quasi-monoenergetic electron beams from a few-terawatt laser driven plasma acceleration using a nitrogen gas jet
TL;DR: An experimental investigation on laser plasma acceleration of electrons has been carried out using 3 TW, 45 fs duration titanium sapphire laser pulse interaction with nitrogen gas jet at intensity of 2x10^18 W/cm^2 as mentioned in this paper.
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.
Journal ArticleDOI
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.