Efficiency of radiation friction losses in laser-driven ‘hole boring’ of dense targets

Popruzhenko, S. V.; Liseykina, T. V.

doi:10.1088/1367-2630/ab0119

Cited by 14 publications

(20 citation statements)

References 32 publications

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“…( 11) considerably deviates from its low-field, a 0 a cr , a HB , and the high-field a 0 a cr , a HB asymptotics. For the supergaussian pulse F (ρ, τ ) = exp(−ρ 2 − τ 4 ) as used in [25,26] the low-field asymptotic of η rad , Eq. ( 19), is given by…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Eq. ( 16) in [26]. This equation relates to the case of a laser field homogeneous both in the propagation direction and the polarization plane.…”

Section: Quantum Effect On the Conversion Efficiencymentioning

confidence: 99%

“…For a flat-top laser pulse with intensity homogeneously distributed in space and time, the conversion efficiency is given by the ratio of the full radiation power of all the electrons to the laser intensity. A simple calculation (see [26] for details) gives then…”

Section: Quantum Effect On the Conversion Efficiencymentioning

confidence: 99%

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Quantum effects on radiation friction driven magnetic field generation

Liseykina,

Macchi,

Popruzhenko

2020

Preprint

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Radiation losses in the interaction of superintense circularly polarized laser pulses with highdensity plasmas can lead to the generation of strong quasistatic magnetic fields via absorption of the photon angular momentum (so called inverse Faraday effect). To achieve the magnetic field strength of several Giga Gauss laser intensities 10 24 W/cm 2 are required which brings the interaction to the border between the classical and the quantum regimes. We improve the classical modeling of the laser interaction with overcritical plasma in the "hole boring" regime by using a modified radiation friction force accounting for quantum recoil and spectral cut-off at high energies. The results of analytical calculations and threedimensional particle-in-cell simulations show that, in foreseeable scenarios, the quantum effects may lead to a decrease of the conversion rate of laser radiation into high-energy photons by a factor 2-3. The magnetic field amplitude is suppressed accordingly, and the magnetic field energy -by more than one order in magnitude. This quantum suppression is shown to reach a maximum at a certain value of intensity, and does not grow with the further increase of intensities. The non monotonic behavior of the quantum suppression factor results from the joint effect of the longitudinal plasma acceleration and the radiation reaction force. The predicted features could serve as a suitable diagnostic for radiation friction theories.

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Section: Numerical Resultsmentioning

confidence: 99%

“…Eq. ( 16) in [26]. This equation relates to the case of a laser field homogeneous both in the propagation direction and the polarization plane.…”

Section: Quantum Effect On the Conversion Efficiencymentioning

confidence: 99%

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Quantum effects on radiation friction driven magnetic field generation

Liseykina,

Macchi,

Popruzhenko

2020

Preprint

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“…The relativistic transparency and hole-boring regimes are found to be sensitive to the transverse plasma field, backward light reflection, and laser pulse filamentation. Popruzhenko et al (2019) have shown that in the interaction of laser pulses of extreme intensity ( [ 10 23 W cm À2 ) with high-density and thick plasma targets, significant radiation friction losses in simulations, in contrast to thin targets for which such losses are negligible. They have presented an analytical calculation,…”

Section: Pic Simulations Of Laser-plasmas Physicsmentioning

confidence: 99%

“…A white curve on the upper panel shows the radiation power integrated over x. Image reproduced from Popruzhenko et al (2019), copyright by the authors report estimates of self-heating rates, convergence of collisional routines and test of ionisation models which are not readily available elsewhere. Having reviewed the status of PIC algorithms they have presented a summary of recent applications of such codes in laser-plasma physics, concentrating on stimulated Raman scattering, short-pulse laser-solid interactions, fast-electron transport, and QED effects.…”

Section: Pic Simulations Of Laser-plasmas Physicsmentioning

confidence: 99%

PIC methods in astrophysics: simulations of relativistic jets and kinetic physics in astrophysical systems

Nishikawa¹,

Duţan

Köhn

et al. 2021

Living Rev Comput Astrophys

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The Particle-In-Cell (PIC) method has been developed by Oscar Buneman, Charles Birdsall, Roger W. Hockney, and John Dawson in the 1950s and, with the advances of computing power, has been further developed for several fields such as astrophysical, magnetospheric as well as solar plasmas and recently also for atmospheric and laser-plasma physics. Currently more than 15 semi-public PIC codes are available which we discuss in this review. Its applications have grown extensively with increasing computing power available on high performance computing facilities around the world. These systems allow the study of various topics of astrophysical plasmas, such as magnetic reconnection, pulsars and black hole magnetosphere, non-relativistic and relativistic shocks, relativistic jets, and laser-plasma physics. We review a plethora of astrophysical phenomena such as relativistic jets, instabilities, magnetic reconnection, pulsars, as well as PIC simulations of laser-plasma physics (until 2021) emphasizing the physics involved in the simulations. Finally, we give an outlook of the future simulations of jets associated to neutron stars, black holes and their merging and discuss the future of PIC simulations in the light of petascale and exascale computing.

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Self-generated magnetic collimation mechanism driven by ultra-intense LG laser

Dong,

Wang,

et al. 2023

Physics of Plasmas

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Collimation control of energetic plasma beams is crucial in the laser–plasma field. In this paper, we report on a self-collimated acceleration scheme for a plasma beam using an ultra-intense Laguerre–Gaussian (LG) laser irradiating a solid target. Three-dimensional (3D) particle-in-cell simulations show that a plasma beam with a high current density is stably formed by the radiation pressure of the hollow LG laser. The initial interaction of LG laser with solid target can be approximately researched by a deformable mirror model. Under the effect of the ponderomotive force of the LG laser, the plasma converges in the center axis to form a narrow beam. An elongated strong-magnetic tunnel (B ∼ 2 kT) is self-generated around the plasma beam, capable of trapping some electrons in a region with a radius of less than 500 nm (r < 500 nm). Compared with the case driven by the conventional Gaussian laser, the beam radius size is dramatically reduced from the microscale to hundreds on the nanoscale. The beam density is increased by at least ten times. Such an interesting scheme can provide a feasible and efficient way to achieve and enhance the collimation of energetic particle beams, which may benefit the general applications of fast ignition in inertial fusion, radiotherapy, realization of high-energy density states, and so on.

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Efficiency of radiation friction losses in laser-driven ‘hole boring’ of dense targets

Cited by 14 publications

References 32 publications

Quantum effects on radiation friction driven magnetic field generation

Quantum effects on radiation friction driven magnetic field generation

PIC methods in astrophysics: simulations of relativistic jets and kinetic physics in astrophysical systems

Self-generated magnetic collimation mechanism driven by ultra-intense LG laser

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