Magnetic field annihilation and charged particle acceleration in ultra-relativistic laser plasmas

Gu, Y. J.; Bulanov, Sergei V.

doi:10.1017/hpl.2020.45

Cited by 10 publications

(5 citation statements)

References 113 publications

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“…On the other hand relativistic magnetic reconnection has been also studied in space, solar system, planetary magnetic field, etc. 13,33,34 . In those cases, the main energy is carried by the magnetic field and the electromagnetic field.…”

Section: Discussionmentioning

confidence: 99%

Dynamic mitigation of the tearing mode instability in a collisionless current sheet

Kawata

Bulanov

2021

Sci Rep

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Dynamic mitigation for the tearing mode instability in the current sheet in collisionless plasmas is demonstrated by applying a wobbling electron current beam. The initial small amplitude modulations imposed on the current sheet induce the electric current filamentation and the reconnection of the magnetic field lines. When the wobbling or oscillatory motion is added from the electron beam having a form of a thin layer moving along the current sheet, the perturbation phase is mixed and consequently the instability growth is saturated remarkably, like in the case of the feed-forward control.

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Section: Discussionmentioning

confidence: 99%

Dynamic mitigation of the tearing mode instability in a collisionless current sheet

Kawata

Bulanov

2021

Sci Rep

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“…15) and a 0 ) 1 (Ref. 16). Thus, it may be possible to find a regime to reliably combine multiple parallel beams in collisionless plasmas to achieve higher pulse powers and avoid energy losses associated with the laser power transmission through plasmas.…”

Section: Introductionmentioning

confidence: 99%

On parallel laser beam merger in plasmas

Lezhnin,

Qu,

Fisch

et al. 2024

Physics of Plasmas

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Self-focusing instability is a well-known phenomenon of nonlinear optics, which is of great importance in the field of laser–plasma interactions. Self-focusing instability leads to beam focusing and, consequently, breakup into multiple laser filaments. The majority of applications tend to avoid a laser filamentation regime due to its detrimental role on laser spot profile and peak intensity. In our work, using nonlinear Schrödinger equation solver and particle-in-cell simulations, we address the problem of interaction of multiple parallel beams in plasmas. We consider both non-relativistic and moderately relativistic regimes and demonstrate how the physics of parallel beam interaction transitions from the familiar self- and mutual-focusing instabilities in the non-relativistic regime to a moderately relativistic regime, where an analytical description of filament interaction is not available.

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“…Other methods of organizing relativistic magnetic reconnection have been theoretically proposed as alternative approaches. For example, in [12][13][14][15][16][17] it is proposed to observe an antiparallel configuration of magnetic fields during a parallel propagation of two ultrashort superintense laser pulses in transparent plasma. In plasma wakefields generated by them, the azimuthal magnetic field is observed.…”

Section: Introductionmentioning

confidence: 99%

Generation of Cold Magnetized Relativistic Plasmas at the Rear of Thin Foils Irradiated by Ultra-High-Intensity Laser Pulses

Korzhimanov

2021

Applied Sciences

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A scheme to generate magnetized relativistic plasmas in a laboratory setting is proposed. It is based on the interaction of ultra-high-intensity sub-picosecond laser pulses with few-micron-thick foils or films. By means of Particle-In-Cell simulations, it is shown that energetic electrons produced by the laser and evacuated at the rear of the target trigger an expansion of the target, building up a strong azimuthal magnetic field. It is shown that in the expanding plasma sheath, a ratio of the magnetic pressure and the electron rest-mass energy density exceeds unity, whereas the plasma pressure is lower than the magnetic pressure and the electron gyroradius is lower than the plasma dimension. This scheme can be utilized to study astrophysical extreme phenomena such as relativistic magnetic reconnection in laboratory.

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Magnetic field annihilation and charged particle acceleration in ultra-relativistic laser plasmas

Cited by 10 publications

References 113 publications

Dynamic mitigation of the tearing mode instability in a collisionless current sheet

Dynamic mitigation of the tearing mode instability in a collisionless current sheet

On parallel laser beam merger in plasmas

Generation of Cold Magnetized Relativistic Plasmas at the Rear of Thin Foils Irradiated by Ultra-High-Intensity Laser Pulses

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