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In addition to the ponderomotive acceleration of highly relativistic electrons at interaction of very short and very intense laser pulses, a further acceleration is derived from the interaction of these electron beams with the spontaneous…

Plasma Physics · Physics 2007-05-23 Hong Liu , X. T. He , Heinrich Hora

The reflection of intense laser radiation from solids appears as a result of relativistic dynamics of the electrons driven by both incoming and self-generated electromagnetic fields at the periphery of the emerging dense plasma. In the case…

Plasma Physics · Physics 2019-05-22 B. Svedung Wettervik , M. Marklund , A. Gonoskov

The radiation reaction (beamstrahlung) effect on particle dynamics during interaction of oppositely charged beams is studied. It is shown that the beam focusing can be strongly enhanced due to beamstrahlung. An approximate analytical…

Accelerator Physics · Physics 2021-11-17 A. S. Samsonov , E. N. Nerush , I. Yu. Kostyukov , M. Filipovic , C. Baumann , A. Pukhov

Chaotic electromagnetic fields are common in many relativistic plasma environments, where they can be excited by instabilities on kinetic spatial scales. When strong electric fluctuations exist on sub-electron scales, they may lead to…

Plasma Physics · Physics 2016-05-10 Brett D. Keenan , Mikhail V. Medvedev

Interaction of an electron with the counter-propagating electromagnetic wave is studied theoretically and with the particle-in-cell simulations in the regime of quantum radiation reaction. We find the electron energy in the center of the…

Plasma Physics · Physics 2021-05-21 M. Jirka , P. Sasorov , S. S. Bulanov , G. Korn , B. Rus , S. V. Bulanov

In the interaction of laser pulses of extreme intensity ($>10^{23}~{\rm W cm}^{-2}$) with high-density, thick plasma targets, simulations show significant radiation friction losses, in contrast to thin targets for which such losses are…

Plasma Physics · Physics 2019-03-27 S. V. Popruzhenko , T. V. Liseykina , A. Macchi

The Vlasov equation embodies the smooth field approximation of the self-consistent equation of motion for charged particle beams. This framework is fundamentally altered if we include the fluctuating forces that originate from the actual…

Accelerator Physics · Physics 2023-04-26 Jürgen Struckmeier

Multi-dimensional particle-in-cell simulations are used to study the generation of electrostatic shocks in plasma and the reflection of background ions to produce high-quality and high-energy ion beams. Electrostatic shocks are driven by…

Circularly polarized colliding laser pulses can create abundant electron-positron pair plasma [A. R. Bell and J. G. Kirk, Phys. Rev. Lett. 101, 200403 (2008)], which scattering the incoming electromagnetic waves can prevent them from…

Strong magnetic fields and plasmas are intrinsically linked in both terrestrial laboratory experiments and in space phenomena. One of the most profound consequences of that is the change in relationship between the frequency and the wave…

A number of theoretical calculations have studied the effect of radiation reaction forces on radiation distributions in strong field counter-propagating electron beam-laser interactions, but could these effects - including quantum…

Accelerator Physics · Physics 2012-04-25 A. G. R. Thomas , C. P. Ridgers , S. S. Bulanov , B. J. Griffin , S. P. D. Mangles

New insights into our understanding of the semirelativistic excitation of atomic hydrogen by electronic impact have been made possible by combining the use of polarized electron beams and intense laser field. The paper reviews relativistic…

Atomic Physics · Physics 2012-11-05 S. Taj , B. Manaut , M. El Idrissi , Y. Attaourti , L. Oufni

The effective increase of the critical density associated with the interaction of relativistically intense laser pulses with overcritical plasmas, known as self-induced transparency, is revisited for the case of circular polarization. A…

Plasma Physics · Physics 2012-11-16 E. Siminos , M. Grech , S. Skupin , T. Schlegel , V. T. Tikhonchuk

Under the presence of strong electromagnetic fields and radiation reaction, plasmas develop anisotropic momentum distributions, characterized by a population inversion. This is a general property of collisionless plasmas when the radiation…

Plasma Physics · Physics 2023-05-03 Pablo J. Bilbao , Luis O. Silva

High-order harmonic generation via single-slit diffraction of relativistic laser pulses is investigated. Using fully kinetic 2D and 3D particle-in-cell simulations, we show that interesting optical phenomena emerge, including the generation…

Plasma Physics · Physics 2025-05-07 Longqing Yi

A minority relativistic electron component can arise in both laboratory and naturally-occurring plasmas. In the presence of high-atomic-number ion species, the ion charge state distribution at low bulk electron temperature can be dominated…

The force exerted on a material by an incident beam of light is dependent upon the material's velocity in the laboratory frame of reference. This velocity dependence is known to be diffcult to measure, as it is proportional to the incident…

Optics · Physics 2012-05-28 S. A. R. Horsley , M. Artoni , G. C. La Rocca

We consider strong-field effects in laboratory and astrophysical plasmas and high intensity laser and cavity systems. Current state-of-the-art laser facilities are close to reaching energy scales at which quantum electrodynamics will play a…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Marklund , P. K. Shukla

In this paper we study photon emission in the interaction of the laser beam with an under-dense target and the attached reflecting plasma mirror. Photons are emitted due to the inverse Compton scattering when accelerated electrons interact…

Plasma Physics · Physics 2020-07-17 M. Jirka , O. Klimo , Y. J. Gu , S. Weber

A classical model of radiation reaction for the betatron oscillation of an electron in a plasma wakefield accelerator is presented. The maximum energy of the electron due to the longitudinal radiation reaction is found, and the betatron…

Plasma Physics · Physics 2021-07-20 Ming Zeng , Keita Seto