Numerical study of laser energy effects on density transition injection in laser wakefield acceleration

Massimo, Francesco; Lifschitz, Agustín; Thaury, C.; Malka, Victor

doi:10.1088/1361-6587/aaa336

Cited by 7 publications

(6 citation statements)

References 37 publications

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“…This suggests that the exact shape of the density step is not so important, which would facilitate experimental implementation. Note that this conclusion agrees with previous work considering down-ramp injection of more massive electron bunches [34].…”

Section: Controlled Injectionsupporting

confidence: 93%

Generation of attosecond electron bunches and x-ray pulses from few-cycle femtosecond laser pulses

Ferri

Horný

Fülöp

2021

Plasma Phys. Control. Fusion

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Laser-plasma electron accelerators can be used to produce high-intensity x-rays, as electrons accelerated in wakefields emit radiation due to betatron oscillations. Such x-ray sources inherit the features of the electron beam; sub-femtosecond electron bunches produce betatron sources of the same duration, which in turn allow probing matter on ultrashort time scales. In this paper we show, via Particle-in-Cell simulations, that attosecond electron bunches can be obtained using low-energy, ultra-short laser beams both in the self-injection and the controlled injection regimes at low plasma densities. However, only in the controlled regime does the electron injection lead to a stable, isolated attosecond electron bunch. Such ultrashort electron bunches are shown to emit attosecond x-ray bursts with high brilliance.

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Section: Controlled Injectionsupporting

confidence: 93%

Generation of attosecond electron bunches and x-ray pulses from few-cycle femtosecond laser pulses

Ferri

Horný

Fülöp

2021

Plasma Phys. Control. Fusion

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show abstract

Section: Controlled Injectionsupporting

confidence: 93%

Generation of attosecond electron bunches and X-ray pulses from few-cycle femtosecond laser pulses

Ferri,

Horný,

Fülöp

2020

Preprint

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Laser-plasma electron accelerators can be used to produce high-intensity X-rays, as electrons accelerated in wakefields emit radiation due to betatron oscillations. Such X-ray sources inherit the features of the electron beam; subfemtosecond electron bunches produce betatron sources of the same duration, which in turn allow probing matter on ultrashort time scales. In this paper we show, via Particlein-Cell simulations, that attosecond electron bunches can be obtained using low-energy, ultra-short laser beams both in the self-injection and the controlled injection regimes at low plasma densities. However, only in the controlled regime does the electron injection lead to a stable, isolated attosecond electron bunch. Such ultrashort electron bunches are shown to emit attosecond X-ray bursts with high brilliance.

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“…Funded as a conceptual design study running from 2015 to October 2019, the EuPRAXIA project investigates and compares both existing and possible new approaches in plasma acceleration to develop a facility design comprising several specialized beamlines and user areas with the most suitable technology. For this reason, laserdriven (laser wakefield acceleration, LWFA), electron beam-driven (plasma wakefield acceleration, PWFA) as well as hybrid (combining LWFA and PWFA) acceleration approaches are under consideration [13]; concurrently, both external (with the electron beam generated outside of the plasma accelerator) [14][15][16] and internal (with the electron beam generated inside the plasma accelerator) injection methods are also investigated [17][18][19]. Beyond the plasma acceleration stage itself, the EuPRAXIA study additionally focuses on researching high power laser systems (in 040012-3 particular pump sources at high average power and repetition rate, diagnostics, laser alignment) [20][21][22], ultrashort electron beam dynamics [10,23] and transport [24][25][26][27], single-shot electron diagnostics [28], synchronization and machine control [29], FEL and secondary source design [30] as well as other aspects.…”

Section: The Eupraxia Projectmentioning

confidence: 99%

EuPRAXIA – a compact, cost-efficient particle and radiation source

Weikum

Akhter

Alesini

et al. 2019

AIP Conference Proceedings

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Plasma accelerators present one of the most suitable candidates for the development of more compact particle acceleration technologies, yet they still lag behind radiofrequency (RF)-based devices when it comes to beam quality, control, stability and power efficiency. The Horizon 2020-funded project EuPRAXIA ("European Plasma Research Accelerator with eXcellence In Applications") aims to overcome the first three of these hurdles by developing a conceptual design for a first international user facility based on plasma acceleration. In this paper we report on the main features, simulation studies and potential applications of this future research infrastructure.

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Numerical study of laser energy effects on density transition injection in laser wakefield acceleration

Abstract: View the article online for updates and enhancements. Recent citations Optical injection dynamics in two laser wakefield acceleration configurations Vojtch Horný et al

Cited by 7 publications

References 37 publications

Generation of attosecond electron bunches and x-ray pulses from few-cycle femtosecond laser pulses

Generation of attosecond electron bunches and x-ray pulses from few-cycle femtosecond laser pulses

Generation of attosecond electron bunches and X-ray pulses from few-cycle femtosecond laser pulses

EuPRAXIA – a compact, cost-efficient particle and radiation source

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