Particle-in-Cell laser-plasma simulation on Xeon Phi coprocessors

Surmin, Igor A.; Bastrakov, Sergei; Efimenko, Evgeny; Gonoskov, Arkady; Korzhimanov, A. V.; Meyerov, Iosif B.

doi:10.1016/j.cpc.2016.02.004

Cited by 51 publications

(30 citation statements)

References 39 publications

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“…The electric field in focus is directed along the z-axis. We study the spatiotemporal evolution of laser-produced pair plasma in vacuum by performing 3D simulations with the QED-PIC code PICADOR [29]. The total power P is varied in the range from 15 to 30 PW.…”

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confidence: 99%

Laser-driven plasma pinching in e−e+ cascade

et al. 2019

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The cascaded production and dynamics of electron-positron plasma in ultimately focused laser fields of extreme intensity are studied by 3D particle-in-cell simulations with the account for the relevant processes of quantum electrodynamics (QED). We show that, if the laser facility provides a total power above 20 PW, it is possible to trigger not only a QED cascade but also pinching in the produced electron-positron plasma. The plasma self-compression in this case leads to an abrupt rise of the peak density and magnetic (electric) field up to at least 10 28 cm −3 and 1/20 (1/40) of the Schwinger field, respectively. Determining the actual limits and physics of this process might require quantum treatment beyond the used standard semiclassical approach. The proposed setup can thus provide extreme conditions for probing and exploring fundamental physics of the matter and vacuum.

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confidence: 99%

Laser-driven plasma pinching in e−e+ cascade

et al. 2019

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“…Here a is given in units of the relativistic amplitude mcω/e and n in units of the critical density n c = mω 2 / 4πe 2 , where ω = 2πc/(0.8 µm) is the laser frequency, c is the speed of light, m and e are the mass and charge of the electron, respectively. PIC simulations were performed using the code PICADOR [40,41]. To simulate oblique incidence with only one spatial dimension, we have used the boosted frame method, that consists in making a Lorentz transformation with a velocity of c sin θ [38].…”

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confidence: 99%

Controlling the ellipticity of attosecond pulses produced by laser irradiation of overdense plasmas

2018

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The interaction of high-intensity laser pulses and solid targets provides a promising way to create compact, tunable and bright XUV attosecond sources that can become a unique tool for a variety of applications. However, it is important to control the polarization state of this XUV radiation, and to do so in the most efficient regime of generation. Using the relativistic electronic spring (RES) model and particle-in-cell (PIC) simulations, we show that the polarization state of the generated attosecond pulses can be tuned in a wide range of parameters by adjusting the polarization and/or the angle of incidence of the laser radiation. In particular, we demonstrate the possibility of producing circularly polarized attosecond pulses in a wide variety of setups.

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“…The study is performed using PIC simulations carried out with the code Picador [56,57]. The numerical setup consists of three parts: 1) a circularly polarized chirped laser pulse; 2) a dense thick foil acting as a reflecting mirror to the incoming laser radiation; and 3) a thin (sub-micron) sheet of protons and electrons positioned at some fixed distance from the mirror.…”

Section: Numerical Setupmentioning

confidence: 99%

Prospects for laser-driven ion acceleration through controlled displacement of electrons by standing waves

et al. 2018

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During the interaction of intense femtosecond laser pulses with various targets, the natural mechanisms of laser energy transformation inherently lack temporal control and thus commonly do not provide opportunities for a controlled generation of a well-collimated, high-charge beam of ions with a given energy of particular interest. In an effort to alleviate this problem, it was recently proposed that the ions can be dragged by an electron bunch trapped in a controllably moving potential well formed by laser radiation. Such standing-wave acceleration (SWA) can be achieved through reflection of a chirped laser pulse from a mirror, which has been formulated as the concept of chirped-standing-wave acceleration (CSWA). Here we analyze general feasibility aspects of the SWA approach and demonstrate its reasonable robustness against field structure imperfections, such as those caused by misalignment, ellipticity and limited contrast. Using this we also identify prospects and limitations of the CSWA concept.

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Particle-in-Cell laser-plasma simulation on Xeon Phi coprocessors

Cited by 51 publications

References 39 publications

Laser-driven plasma pinching in e−e+ cascade

Laser-driven plasma pinching in e−e+ cascade

Controlling the ellipticity of attosecond pulses produced by laser irradiation of overdense plasmas

Prospects for laser-driven ion acceleration through controlled displacement of electrons by standing waves

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