Generation of quasi-monochromatic beams of accelerated electrons during interaction of weak-contrast intense femtosecond laser radiation with a metal-foil edge

Malkov, Yu. A.; Степанов, А. Н.; Yashunin, D. A.; Pugachev, Leonid; Levashov, P. R.; Andreev, N. E.; Андреев, А. А.

doi:10.1070/qe2013v043n03abeh015100

Cited by 9 publications

(16 citation statements)

References 26 publications

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“…The earlier PIC simulations performed for onedimensionally inhomogeneous (1D3V) plasma [33] have shown that one of the possible mechanisms for the formation of a quasi-monochromatic spectrum of accelerated electrons is their acceleration in the field of a plasma wave generated via self-modulation instability in a relatively dense subcritical plasma created by a laser prepulse [35]. Here, we present results of fully three-dimensional (3D3V) simulations of the interaction between a femtosecond laser pulse and an inhomogeneous plasma corona by means of the VLPL code [36].…”

Section: Theoretical Model and Simulation Resultsmentioning

confidence: 99%

“…The simulations were performed for the laser pulse parameters corresponding to the experimental conditions of [33]. A laser pulse with a duration of fs (at an intensity level of e -1 ) propagated along the axis.…”

Section: Theoretical Model and Simulation Resultsmentioning

confidence: 99%

“…The characteristic inhomogeneity length (exponential half-width) of the boundary layer in 1D3V simulations was taken to be or 1 μm (Fig. 1) [33] (in [33], a linear density profile at the plasma boundary was indicated erroneously for simulations with μm). In the region μm, the density increased, while at μm, it decreased.…”

Section: Theoretical Model and Simulation Resultsmentioning

confidence: 99%

“…In the present work, electron acceleration in a oneand two-dimensionally inhomogeneous subcritical plasma corona produced by a laser prepulse focused onto the edge of an aluminum foil normally to its plane [33] is analyzed using three-dimensional (3D3V) PIC simulations. Various modes of electron acceleration in the field of a wake plasma wave have been considered.…”

Section: ×mentioning

confidence: 99%

“…Various modes of electron acceleration in the field of a wake plasma wave have been considered. The results are compared with the experiments [33,34], in which collimated quasi-monoenergetic electron beams with energies in the range of 0.2-0.8 МeV were generated.…”

Section: ×mentioning

confidence: 99%

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Laser acceleration of electrons in two-dimensionally inhomogeneous plasma at the boundary of a metal foil

et al. 2015

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The electron acceleration mechanism associated with the generation of a plasma wave due to selfmodulation instability of laser radiation in a subcritical plasma produced by a laser prepulse coming 10 ns before the arrival of the main intense femtosecond pulse is considered. Three-dimensional particle-in-cell simulations of the interaction of laser radiation with two-dimensionally inhomogeneous subcritical plasma have shown that, for a sufficiently strong plasma inhomogeneity and a sharp front of the laser pulse, efficient plasma wave excitation, electron trapping, and generation of collimated electron beams with energies on the order of 0.2-0.5 МeV can occur. The simulation results agree with experiments on the generation of collimated beams of accelerated electrons from metal targets irradiated by intense femtosecond laser pulses.

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Section: Theoretical Model and Simulation Resultsmentioning

confidence: 99%

Section: Theoretical Model and Simulation Resultsmentioning

confidence: 99%

Section: Theoretical Model and Simulation Resultsmentioning

confidence: 99%

Section: ×mentioning

confidence: 99%

Section: ×mentioning

confidence: 99%

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Laser acceleration of electrons in two-dimensionally inhomogeneous plasma at the boundary of a metal foil

et al. 2015

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Laser-driven low energy electron beams for single-shot ultra-fast probing of meso-scale materials and warm dense matter

Falk

Šmíd

Bohacek

et al. 2023

Sci Rep

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Laser wakefield acceleration has proven to be an excellent source of electrons and X-rays suitable for ultra-fast probing of matter. These novel beams have demonstrated unprecedented spatial and temporal resolution allowing for new discoveries in material science and plasma physics. In particular, the study of dynamic processes such as non-thermal melt and lattice changes on femtosecond time-scales have paved a way to completely new scientific horizons. Here, we demonstrate the first single-shot electron radiography measurement using an femtosecond electron source based on the downramp-density gradient laser-wakefield-acceleration with the use of a compact Ti:sapphire laser. A quasi-monoenergetic electron beam with mean energy of 1.9 ± 0.4 MeV and charge 77 ± 47 pC per shot was generated by the laser incident onto a gas target and collimated using a two ring-magnet beam path. High quality electron radiography of solid objects with spatial resolution better than 150 $$\upmu$$ μ m was demonstrated. Further developments of this scheme have the potential to obtain single-shot ultrafast electron diffraction from dynamic lattices. This scheme poses a great promise for smaller scale university laboratories and facilities for efficient single-shot probing of warm dense matter, medical imaging and the study of dynamic processes in matter with broad application to inertial confinement fusion and meso-scale materials (mg g/cm$$^2$$ 2 ).

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Acceleration of electrons in the interaction of a subterawatt laser pulse with a nonuniform plasma

Попов

Andreev

2019

Quantum Electron.

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Generation of quasi-monochromatic beams of accelerated electrons during interaction of weak-contrast intense femtosecond laser radiation with a metal-foil edge

Cited by 9 publications

References 26 publications

Laser acceleration of electrons in two-dimensionally inhomogeneous plasma at the boundary of a metal foil

Laser acceleration of electrons in two-dimensionally inhomogeneous plasma at the boundary of a metal foil

Laser-driven low energy electron beams for single-shot ultra-fast probing of meso-scale materials and warm dense matter

Acceleration of electrons in the interaction of a subterawatt laser pulse with a nonuniform plasma

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