Stochastic electron acceleration in plasma waves driven by a high-power subpicosecond laser pulse

Bochkarev, S. G.; Brantov, A. V.; Bychenkov, V. Yu.; Торшин, Д. В.; Kovalev, V. F.; Baidin, G. V.; Лыков, В. А.

doi:10.1134/s1063780x14030027

Cited by 23 publications

(24 citation statements)

References 38 publications

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“…Pre-acceleration mechanism of the electrons could be referred to as specific kind of direct laser acceleration enabling an effective loading of high amounts of particles into accelerating electrostatic plasma field. An amplitude modulated single-cycle electrostatic field of the cavity contribute to a stochastic manner of electron acceleration similar to that observed for stimulated Raman scattering [24]. Stochastic behaviour of the accelerating electrons has been demonstrated in [15].…”

supporting

confidence: 52%

Bright synchrotron radiation from relativistic self-trapping of a short laser pulse in near-critical density plasma

Lobok,

Andriyash,

Vais

et al. 2021

Preprint

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In a dense gas plasma a short laser pulse propagates in relativistic self-trapping mode, which enables effective conversion of laser energy to the accelerated electrons. This regime sustains effective loading which maximizes the total charge of the accelerating electrons, that provides a large amount of betatron radiation. The 3D particle-in-cell simulations demonstrate how such regime triggers X-ray generation with 0.1-1 MeV photon energies, low divergence, and high brightness. It is shown that a 135 TW laser can be used to produce 3 × 10 10 photons of > 10 keV energy and a 1.2 PW laser makes it possible generating about 10 12 photons in the same energy range. The laser-togammas energy conversion efficiency is up to 10 −4 for the high-energy photons, ∼ 100 keV, while the conversion efficiency to the entire keV-range x-rays is estimated to be a few tenths of a percent.

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supporting

confidence: 52%

Bright synchrotron radiation from relativistic self-trapping of a short laser pulse in near-critical density plasma

Lobok,

Andriyash,

Vais

et al. 2021

Preprint

Self Cite

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“…Plasma turbulence could also be responsible for the dephasing, as shown in Ref. [50], but the electromagnetic fields associated with the filaments are typically much greater in magnitude than the electrostatic response and the energy jumps visible in Fig. 3(c) are due primarily to the laser fields.…”

mentioning

confidence: 76%

Production of relativistic electrons at subrelativistic laser intensities

Williams¹,

Link²,

Sherlock³

et al. 2020

Phys. Rev. E

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“…In this case the mechanism of the laser acceleration along the target surface can be attributed to stochastic electron acceleration in plasma waves driven by an intense laser pulse at grazing incidence [see (Bochkarev et al, 2014) and references cited therein]. Plasma waves in subcritical plasma are excited by a subpicosecond laser pulse with the duration much longer than the plasma wave period in the process of the pulse self-modulation (Antonsen & Mora, 1993;Krall et al, 1993;Andreev et al, 1996Andreev et al, , 1992.…”

Section: Discussionmentioning

confidence: 99%

Electron acceleration at grazing incidence of a subpicosecond intense laser pulse onto a plane solid target

et al. 2015

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Generation of hot electrons at grazing incidence of a subpicosecond relativistic-intense laser pulse onto a plane solid target is analyzed for the parameters of petawatt class laser systems. We study preplasma formation on the surface of solid aluminum targets produced by laser prepulses with a different time structure. For modeling of the preplasma dynamics, we use a wide-range two-temperature hydrodynamic model. As a result of simulations, the preplasma expansion under the action of the laser prepulse and the plasma density profiles for different contrast ratios of the nanosecond pedestal are found. These density profiles are used as the initial density distributions in three-dimensional particle-in-cell simulations of electron acceleration by the main P-polarized laser pulse. Results of modeling demonstrate a substantial increase of the characteristic energy and number of accelerated electrons for the grazing incidence of a subpicosecond intense laser pulse in comparison with the ponderomotive scaling of laser-target interaction.

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Stochastic electron acceleration in plasma waves driven by a high-power subpicosecond laser pulse

Cited by 23 publications

References 38 publications

Bright synchrotron radiation from relativistic self-trapping of a short laser pulse in near-critical density plasma

Bright synchrotron radiation from relativistic self-trapping of a short laser pulse in near-critical density plasma

Production of relativistic electrons at subrelativistic laser intensities

Electron acceleration at grazing incidence of a subpicosecond intense laser pulse onto a plane solid target

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