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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Beam dynamics challenges in linear colliders based on laser-plasma accelerators
TL;DR: In this article , the authors discuss design considerations and beam dynamics challenges associated with laser-driven plasma-based accelerators as applied to multi-TeV-scale linear colliders, showing that stable, efficient acceleration with beam quality preservation is possible in the nonlinear bubble regime of laser-plasma accelerators using beam shaping.
Journal ArticleDOI
Large aperture and durable glass-engraved optical metasurfaces using nanoparticle etching masks: prospects and future directions
TL;DR: In this article, the authors discuss the emergence of a MS technology that is based on dewetting thin metal films to form dry etching masks for MS fabrication and discuss the foreseeable technological challenges, potential solutions for those obstacles, and some currently unexplored directions for future efforts.
Journal ArticleDOI
Electron energy increase in a laser wakefield accelerator using longitudinally shaped 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,Junghun Shin,Jeong Ho Jeon,Seongha Cho,Myung Hoon Cho,Jae Hee Sung,Seong Ku Lee,Bjorn Hegelich,Chang Hee Nam +15 more
TL;DR: In this paper, a series of shaped longitudinal plasma density profiles was used to increase the mean electron peak energy by more than 50%, from 174.8 +/- 1.3 MeV to 262 +/- 9.7 MeV.
Proceedings ArticleDOI
Generation of dark-current-free quasi-monoenergetic 1.25 GeV electrons by laser wakefield acceleration
Xiaohan Wang,Rafal Zgadzaj,W. Henderson,N. Fazel,Y. Y. Chang,R. Korzekwa,A. S. Yi,V. Khudik,Hai-En Tsai,Chih-Hao Pai,Zhengyan Li,Hernan Quevedo,Gilliss Dyer,Erhard Gaul,Mikael Martinez,Aaron C Bernstein,T. Borger,M. Spinks,Michael E Donovan,Gennady Shvets,Todd Ditmire,Michael C. Downer +21 more
TL;DR: In this paper, the authors reported electron acceleration to 1.25 GeV by petawatt-laser-driven wakefield acceleration at plasma density 5×1017 cm3.
Journal ArticleDOI
Charge coupling in multi-stage laser wakefield acceleration
TL;DR: In this paper, the authors investigate two-stage LWFA via fully relativistic multi-dimensional particle-in-cell simulations, and underlying the most critical parameters, which affect the efficient coupling and acceleration of the electron beam in the booster stage.
References
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Laser Electron Accelerator
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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.
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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
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