scholarly journals Study of quasimonoenergetic electron bunch generation in self-modulated laser wakefield acceleration using TW or sub-TW ultrashort laser pulses

AIP Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 065116
Author(s):  
E. P. Maldonado ◽  
R. E. Samad ◽  
A. Bonatto ◽  
R. P. Nunes ◽  
S. Banerjee ◽  
...  
Keyword(s):  
Electron Bunch ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Laser Wakefield Acceleration ◽  
Wakefield Acceleration ◽  
Laser Wakefield ◽  
Ultrashort Laser

scholarly journals Laser wakefield acceleration by petawatt ultrashort laser pulses

2005 ◽  
Vol 12 (3) ◽  
pp. 033101 ◽  
Author(s):  
L. M. Gorbunov ◽  
S. Yu. Kalmykov ◽  
P. Mora
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Laser Wakefield Acceleration ◽  
Wakefield Acceleration ◽  
Laser Wakefield ◽  
Ultrashort Laser

scholarly journals Simulations of laser-wakefield acceleration with external electron-bunch injection for REGAE experiments at DESY

2013 ◽  
Author(s):  
Julia Grebenyuk ◽  
Timon Mehrling ◽  
Frank S. Tsung ◽  
Klaus Floettman ◽  
Jens Osterhoff
Keyword(s):  
Electron Bunch ◽  
Laser Wakefield Acceleration ◽  
Wakefield Acceleration ◽  
Laser Wakefield

Ultrahigh brightness attosecond electron beams from intense X-ray laser driven plasma photocathode

2019 ◽  
Vol 34 (34) ◽  
pp. 1943012 ◽  
Author(s):  
Ronghao Hu ◽  
Zheng Gong ◽  
Jinqing Yu ◽  
Yinren Shou ◽  
Meng Lv ◽  
...  
Keyword(s):  
Electron Beams ◽  
Laser Pulses ◽  
Laser Wakefield Acceleration ◽  
X Ray ◽  
Electron Sources ◽  
Research Areas ◽  
Wakefield Acceleration ◽  
Laser Wakefield ◽  
Liquid Methane ◽  
Present Simulation

The emerging intense attosecond X-ray lasers can extend the Laser Wakefield Acceleration mechanism to higher plasma densities in which the acceleration gradients are greatly enhanced. Here we present simulation results of high quality electron acceleration driven by intense attosecond X-ray laser pulses in liquid methane. Ultrahigh brightness electron beams can be generated with 5-dimensional beam brightness over [Formula: see text]. The pulse duration of the electron bunch can be shorter than 20 as. Such unique electron sources can benefit research areas requiring crucial spatial and temporal resolutions.

scholarly journals Coupling of longitudinal and transverse motion of accelerated electrons in laser wakefield acceleration

2004 ◽  
Vol 22 (4) ◽  
pp. 407-413 ◽  
Author(s):  
A.J.W. REITSMA ◽  
D.A. JAROSZYNSKI
Keyword(s):  
Laser Pulse ◽  
Group Velocity ◽  
Electron Bunch ◽  
Coupling Effect ◽  
Energy Spread ◽  
Transverse Motion ◽  
Laser Wakefield Acceleration ◽  
Wakefield Acceleration ◽  
Laser Wakefield ◽  
Wakefield Accelerator

The acceleration dynamics of electrons in a laser wakefield accelerator is discussed, in particular the coupling of longitudinal and transverse motion. This coupling effect is important for electrons injected with a velocity below the laser pulse group velocity. It is found that the electron bunch is adiabatically focused during the acceleration and that a finite bunch width contributes to bunch lengthening and growth of energy spread. These results indicate the importance of a small emittance for the injected electron bunch.

Coupling Efficiency of Intense Laser Pulses to Capillary Tubes for Laser Wakefield Acceleration

2008 ◽  
Vol 36 (4) ◽  
pp. 1746-1750 ◽  
Author(s):  
Nikolay E. Andreev ◽  
Brigitte Cros ◽  
Gilles Maynard ◽  
Patrick Mora ◽  
Franck Wojda
Keyword(s):  
Coupling Efficiency ◽  
Laser Pulses ◽  
Intense Laser ◽  
Laser Wakefield Acceleration ◽  
Capillary Tubes ◽  
Wakefield Acceleration ◽  
Intense Laser Pulses ◽  
Laser Wakefield

scholarly journals Improvement of Properties of Self-Injected and Accelerated Electron Bunch by Laser Pulse in Plasma, Using Pulse Precursor

2019 ◽  
Keyword(s):  
Laser Pulse ◽  
Laser Plasma ◽  
Electron Bunch ◽  
Energy Spread ◽  
Intense Laser ◽  
X Rays ◽  
Laser Wakefield Acceleration ◽  
Small Energy ◽  
Wakefield Acceleration ◽  
Laser Wakefield

The accelerating gradients in conventional linear accelerators are currently limited to ~100 MV/m. Plasma-based accelerators have the ability to sustain accelerating gradients which are several orders of magnitude greater than that obtained in conventional accelerators. Due to the rapid development of laser technology the laser-plasma-based accelerators are of great interest now. Over the past decade, successful experiments on laser wakefield acceleration of electrons in the plasma have confirmed the relevance of this acceleration. Evidently, the large accelerating gradients in the laser plasma accelerators allow to reduce the size and to cut the cost of accelerators. Another important advantage of the laser-plasma accelerators is that they can produce short electron bunches with high energy. The formation of electron bunches with small energy spread was demonstrated at intense laser–plasma interactions. Electron self-injection in the wake-bubble, generated by an intense laser pulse in underdense plasma, has been studied. With newly available compact laser technology one can produce 100 PW-class laser pulses with a single-cycle duration on the femtosecond timescale. With a fs intense laser one can produce a coherent X-ray pulse. Prof. T. Tajima suggested utilizing these coherent X-rays to drive the acceleration of particles. When such X-rays are injected into a crystal they interact with a metallic-density electron plasma and ideally suit for laser wakefield acceleration. In numerical simulation of authors, performed according to idea of Prof. T.Tajima, on wakefield excitation by a X-ray laser pulse in a metallic-density electron plasma the accelerating gradient of several TV/m has been obtained. It is important to form bunch with small energy spread and small size. The purpose of this paper is to show by the numerical simulation that some precursor-laser-pulse, moved before the main laser pulse, controls properties of the self-injected electron bunch and provides at certain conditions small energy spread and small size of self-injected and accelerated electron bunch.

scholarly journals Electron bunch evolution in laser-wakefield acceleration

2020 ◽  
Vol 23 (11) ◽  
Author(s):  
D. E. Cardenas ◽  
S. Chou ◽  
E. Wallin ◽  
J. Xu ◽  
L. Hofmann ◽  
...  
Keyword(s):  
Electron Bunch ◽  
Laser Wakefield Acceleration ◽  
Wakefield Acceleration ◽  
Laser Wakefield

scholarly journals All optical dual stage laser wakefield acceleration driven by two-color laser pulses

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Vishwa Bandhu Pathak ◽  
Hyung Taek Kim ◽  
J. Vieira ◽  
L. O. Silva ◽  
Chang Hee Nam
Keyword(s):  
Laser Pulses ◽  
Laser Wakefield Acceleration ◽  
Wakefield Acceleration ◽  
All Optical ◽  
Laser Wakefield ◽  
Dual Stage

scholarly journals Generation of high-quality electron beams by ionization injection in a single acceleration stage

2016 ◽  
Vol 4 ◽  
Author(s):  
Nasr A.M. Hafz ◽  
Song Li ◽  
Guangyu Li ◽  
Mohammad Mirzaie ◽  
Ming Zeng ◽  
...  
Keyword(s):  
Electron Beams ◽  
Laser Pulses ◽  
Electron Trapping ◽  
Laser Wakefield Acceleration ◽  
Plasma Parameters ◽  
Electron Bunches ◽  
Wakefield Acceleration ◽  
Low Concentrations ◽  
Laser Wakefield ◽  
Complex Target

Ionization-induced electron injection in laser wakefield accelerators, which was recently proposed to lower the laser intensity threshold for electron trapping into the wake wave, has the drawback of generating electron beams with large and continuous energy spreads, severely limiting their future applications. Complex target designs based on separating the electron trapping and acceleration stages were proposed as the only way for getting small energy-spread electron beams. Here, based on the self-truncated ionization-injection concept which requires the use of unmatched laser–plasma parameters and by using tens of TW laser pulses focused onto a gas jet of helium mixed with low concentrations of nitrogen, we demonstrate single-stage laser wakefield acceleration of multi-hundred MeV electron bunches with energy spreads of a few percent. The experimental results are verified by PIC simulations.

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