A5045387457- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Laser-Matter Interactions and Applications
- High-pressure geophysics and materials
- Particle Accelerators and Free-Electron Lasers
- Atomic and Molecular Physics
- Laser Design and Applications
- Gamma-ray bursts and supernovae
- Nuclear Physics and Applications
- Ionosphere and magnetosphere dynamics
- Cold Atom Physics and Bose-Einstein Condensates
- Ion-surface interactions and analysis
- Magnetic confinement fusion research
- Particle accelerators and beam dynamics
- Advanced X-ray Imaging Techniques
- Quantum Electrodynamics and Casimir Effect
- Radiation Therapy and Dosimetry
- Crystallography and Radiation Phenomena
- Dust and Plasma Wave Phenomena
- Laser Material Processing Techniques
- Quantum chaos and dynamical systems
- Cold Fusion and Nuclear Reactions
- Pulsars and Gravitational Waves Research
- Quantum optics and atomic interactions
- Semiconductor Lasers and Optical Devices
Institute of Applied Physics
2015-2024
Plasma (Russia)
2023
Prokhorov General Physics Institute
2023
École Polytechnique
2023
Centre National de la Recherche Scientifique
2023
Laboratoire pour l'utilisation des lasers intenses
2023
Sorbonne Université
2023
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2023
National Research Nuclear University MEPhI
2023
N. I. Lobachevsky State University of Nizhny Novgorod
2014-2021
The results of Monte-Carlo simulations electron-positron-photon cascades initiated by slow electrons in circularly polarized fields ultra-high strength are presented and discussed. Our confirm previous qualitative estimations [A.M. Fedotov, et al., PRL 105, 080402 (2010)] the formation cascades. This sort has revealed new property restoration energy dynamical quantum parameter due to acceleration positrons field may become a dominating feature laser-matter interactions at intensities....
Recently, much attention has been attracted to the problem of limitations on attainable intensity high power lasers [A. M. Fedotov et al., Phys. Rev. Lett. 105, 080402 (2010)]. The laser energy can be absorbed by electron-positron pair plasma produced from a seed strong field via development electromagnetic cascades. numerical model for self-consistent study dynamics is developed. Strong absorption in self-generated overdense demonstrated. It shown that becomes important not extremely...
We present an analytical model for electron self-injection in a nonlinear, multidimensional plasma wave excited by short laser pulse the bubble regime or beam blowout regime. In these regimes, which are typical acceleration, radiation pressure charge pushes out background electrons forming cavity---bubble---with huge ion charge. The can be trapped and accelerated wakefields up to very high energies. predicts condition trapping cross section terms of radius velocity. obtained results good...
When extremely intense lasers (I ≥ 1022 W/cm2) interact with plasmas, a significant fraction of the pulse energy is converted into photon emission in multi-MeV range. This results radiation reaction (RR) force on electrons, which becomes important at ultrahigh intensities. Using three-dimensional particle-in-cell simulations include quantum electrodynamics model for γ–photons emission, corresponding RR and electron-positron pair creation, partition laser-plasma system investigated. At...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation V. F. Bashmakov, E. N. Nerush, I. Yu. Kostyukov, A. M. Fedotov, B. Narozhny; Effect of laser polarization on quantum electrodynamical cascading. Phys. Plasmas 1 January 2014; 21 (1): 013105. https://doi.org/10.1063/1.4861863 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers...
QED cascades in an intense electromagnetic field can occur if the dynamical quantum parameter $\ensuremath{\chi}$ of a seed electron, which Compton units coincides with electron proper acceleration, attains order unity. We derive general expression for initially slow arbitrary time range $t\ensuremath{\ll}1/\ensuremath{\omega}$, where $\ensuremath{\omega}$ is carrier frequency. Using this formula, we consider special configuration multiple colliding focused laser beams and optimize it to...
The vast majority of QED results are obtained in relatively weak fields and so the framework perturbation theory. However, forthcoming laser facilities providing extremely high can be used to enter not-yet-studied regimes. Here, a scheme is proposed that might reach supercritical regime radiation reaction or even fully non-perturbative quantum electrodynamics. considers collision 100 GeV-class electron beam with counterpropagating ultraintense electromagnetic pulse. To these regimes, it...
Carrier-envelope phase effects during the interaction of relativistically intense few-cycle laser pulses with a plasma are studied in ''bubble'' regime when an electron cavity (bubble) is formed behind pulse. We show that for shape becomes asymmetric and depends strongly on carrier-envelope phase. The varies pulse propagates plasma, which causes transverse oscillations cavity. Furthermore, beam electrons trapped by modulated polarization plane. To describe these we derive analytical model...
The electron-positron pair production accompanying interaction of a circularly polarized laser pulse with foil is studied for intensities higher than 1024 W cm−2. energy penetrates into the due to effect relativistic hole-boring. It demonstrated that plasma produced as result quantum-electrodynamical cascading in field incident and reflected light front foil. make up standing wave reference frame hole-boring density peaks near nodes anti-nodes wave. A model based on particle dynamics...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation E. N. Nerush, I. Yu. Kostyukov, L. Ji, A. Pukhov; Gamma-ray generation in ultrahigh-intensity laser-foil interactions. Physics of Plasmas 1 January 2014; 21 (1): 013109. https://doi.org/10.1063/1.4863423 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks...
Electromagnetic cascades attract a lot of attention as an important quantum electrodynamics effect that will reveal itself in various electromagnetic field configurations at ultrahigh intensities. We study cascade dynamics rotating electric analytically and numerically. The kinetic equations for the electron-positron plasma gamma-quanta are formulated. scaling laws derived analyzed. For arising far above threshold dependence parameters on frequency is derived. spectra high-energy particles...
Ion acceleration in laser-produced dense plasmas is a key topic of many recent investigations thanks to its potential applications. Indeed, at forthcoming laser intensities ($I \gtrsim 10^{23} \text{W}\,\text{cm}^{-2}$) interaction pulses with can be accompanied by copious gamma-ray emission. Here we demonstrate the mutual influence emission and ion during relativistic hole boring high-density ultra-intense pulses. If abundant, pulse reflection hole-boring velocity are lower radiation...
Abstract It is demonstrated by three-dimensional quantum electrodynamics — particle-in-cell (QED-PIC) simulations that vacuum breakdown wave in the form of QED cascade front can propagate an extremely intense plane electromagnetic wave. The result disproves statement self-sustained cascading not possible a configuration. In initiated during laser-foil interaction light sail regime. As result, constantly growing electron-positron plasma cushion formed between foil and laser radiation....
We present a theory for electron self-injection in nonlinear, multidimensional plasma waves excited by short laser pulse the bubble regime or beam blowout regime. In these regimes, which are typical acceleration last impressive experiments, radiation pressure charge pushes out electrons from some region, forming cavity with huge ion charge. The can be trapped and accelerated wakefields up to very high energy. derive condition of trapping bubble. developed predicts cross section terms radius...
The radiation spectrum of extreme relativistic electrons and the probability electron-positron pair production by energetic photons in a strong plasma wakefield are derived framework semiclassical approach. It is shown that losses electron scale proportionally to epsilon2/3 quantum limit when energy radiated photon becomes close epsilon . effects will play key role future plasma-based accelerators operating at ultrahigh energy.
The development of a self-sustained quantum electrodynamical (QED) cascade in single strong laser pulse is studied analytically and numerically. A hydrodynamical approach used to construct an analytical model evolution, which includes the key features observed 3D QED particle-in-cell (QED-PIC) simulations, such as magnetic field dominance plasma energy absorption. equations are derived closed form solved Direct comparison between solutions QED-PIC simulations shows that our able describe...
The laser wakefield acceleration electron beams can essentially deviate from the axis of system, which distinguishes them greatly conventional accelerators. In case energy measurements by means a permanent-magnet spectrometer, deviation angle affect accuracy, especially for high energies. A two-screen single-shot spectrometer that correctly allows variations entry is considered. design enables enhancing accuracy measuring narrow significantly as compared to one-screen with analogous magnetic...
We present the results of theoretical analysis and numerical simulations Weibel instability in two counter-streaming hot relativistic plasma flows, e.g. flows electron-proton having rest-mass density $\rho \sim 10^{-4}\; \text{g}\, \text{cm}^{-3}$, Lorentz factors $\Gamma 10$ proper temperature $T 10^{13}\; \text{K}$. The growth rate filament size at linear stage are found analytically, qualitative agreement with three-dimensional particle-in-cell simulations. In simulations, incoherent...
When a relativistically intense linearly polarized laser pulse is incident on an overdense plasma, dense electron layer formed the plasma edge which relativistic motion results in high harmonic generation, ion acceleration and incoherent synchrotron emission of gamma-photons. Here we present self-consistent analytical model that describes apply it to problem by ultrarelativistic electrons. The takes into account both coherent radiation reaction from harmonics Landau-Lifshitz form. are...
The electrons accelerated in a plasma-based accelerator undergo betatron oscillations and emit synchrotron radiation. energy loss to radiation may seriously affect electron acceleration. dynamics under combined influence of the constant accelerating force classical reaction is studied. It shown that acceleration cannot be limited by reaction. If initially was stronger than force, then unlimited. Otherwise decelerated radiative damping up certain instant time without limits. regardless...
We study electron motion in electromagnetic (EM) fields the radiation-dominated regime. It is shown that trajectories become close to some asymptotic strong field limit. The description of dynamics by this significantly differs from ponderomotive barely applicable particle velocity on trajectory completely determined local and instant EM field. general properties are discussed. In most standing waves (including identical tightly-focused counter-propagating beams) periodic with period wave...
The use of rectangular-shaped microstructures at the front surface a solid target is shown to improve gamma-ray generation by 2–3 orders magnitude, compared case planar target, when irradiated laser pulses with an intensity 1.13 × 1022 W cm−2. Also, it observed that energy absorption rate increases more than 10 times, up 57%. analysis simulation results suggests in relatively narrow microstructure elements, mechanism similar pulse normally incident onto but differences electron trajectories....