Characteristics of laser-driven electron acceleration in vacuum

Wang, P. X.; Ho, Y. K.; Yuan, Xiao; Kong, Q.; Cao, N.; Shao, Lei; Sessler, Andrew M.; Esarey, E.; Moshkovich, E.; Nishida, Yasushi; Yugami, Noboru; Ito, Hiroaki; Wang, J. X.; Scheid, S.

doi:10.1063/1.1423394

Cited by 63 publications

(31 citation statements)

References 47 publications

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“…Many theoretical and experimental models were proposed and developed which target the sequential improvement in electron energy gains [1][2][3][4]. Wang et al [3] reported laser plasma acceleration to 2 GeV with pettawatt pulses.…”

Section: Introductionmentioning

confidence: 99%

Sensitiveness of axial magnetic field on electron acceleration by a radially polarized laser pulse in vacuum

Ghotra

Kant

2015

Optics Communications

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Section: Introductionmentioning

confidence: 99%

Sensitiveness of axial magnetic field on electron acceleration by a radially polarized laser pulse in vacuum

Ghotra

Kant

2015

Optics Communications

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“…The other option is for the electron to spend a longer time period in the laser field. This is best achieved via a capture and acceleration scenario (CAS) [24][25][26] where the electron enters the field and gets captured near the focus and subsequently accelerated. For such a situation to occur we should have a high energy electron interacting with the laser pulse in a same direction (or near same direction) collision.…”

Section: The Set-upmentioning

confidence: 99%

Radiation damping in pulsed Gaussian beams

Harvey

Marklund

2012

Phys. Rev. A

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We consider the effects of radiation damping on the electron dynamics in a Gaussian beam model of a laser field. For high intensities, i.e. with dimensionless intensity a 0 1, it is found that the dynamics divide into three regimes. For low energy electrons (low initial γ-factor, γ 0 ) the radiation damping effects are negligible. At higher energies, but still at 2γ 0 < a 0 , the damping alters the final displacement and the net energy change of the electron. For 2γ 0 > a 0 one is in a regime of radiation reaction induced electron capture. This capture is found to be stable with respect to the spatial properties of the electron beam and results in a significant energy loss of the electrons. In this regime the plane wave model of the laser field provides a good description of the dynamics, whereas for lower energies the Gaussian beam and plane wave models differ significantly. Finally the dynamics are considered for the case of an XFEL field. It is found that the significantly lower intensities of such fields inhibits the damping effects.

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“…During the interaction of an intense laser with plasma, a magnetic field is genera− ted and cyclotron resonance occurs between the electrons and the electric field of the laser beam and as a result the electrons are effectively accelerated to the high energies [28]. This type of resonance interaction was suggested as a mechanism for accelerating electrons to the relativistic energies [29,30].…”

Section: Introductionmentioning

confidence: 99%

“…The ponderomotive deflection of electrons subjected to the electromagnetic field of an intense laser beam may significantly increase the electron energy. When laser intensity is very high, an electron can be captured within the high intensity laser region and can be accelerated to GeV and TeV energies [29,30]. In order to deflect already accelerated electrons from the laser beam, the external static magnetic field can be applied in the (x, y) plane perpendicu− lar to the beam axis.…”

Section: Introductionmentioning

confidence: 99%

Basic features of a charged particle dynamics in a laser beam with static axial magnetic field

Dubik¹,

Małachowski²

2009

Opto-Electronics Review

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In this paper, the trajectory and kinetic energy of a charged particle, subjected to interaction from a laser beam containing an additionally applied external static axial magnetic field, have been analyzed. We give the rigorous analytical solutions of the dynamic equations. The obtained analytical solutions have been verified by performing calculations using the derived solutions and the well known Runge-Kutta procedure for solving original dynamic equations. Both methods gave the same results. The simulation results have been obtained and presented in graphical form using the derived solutions. Apart from the laser beam, we show the results for a maser beam. The obtained analytical solutions enabled us to perform a quantitative illustration, in a graphical form of the impact of many parameters on the shape, dimensions and the motion direction along a trajectory. The kinetic energy of electrons has also been studied and the energy oscillations in time with a period equal to the one of a particle rotation have been found. We show the appearance of, so-called, stationary trajectories (hypocycloid or epicycloid) which are the projections of the real trajectory onto the (x, y) plane. Increase in laser or maser beam intensity results in the increase in particle’s trajectory dimension which was found to be proportional to the amplitude of the electric field of the electromagnetic wave. However, external magnetic field increases the results in shrinking of the trajectories. Performed studies show that not only amplitude of the electric field but also the static axial magnetic field plays a crucial role in the acceleration process of a charged particle.At the authors of this paper best knowledge, the precise analytical solutions and theoretical analysis of the trajectories and energy gains by the charged particles accelerated in the laser beam and magnetic field are lacking in up to date publications. The authors have an intention to clarify partly some important aspects connected with this process. The presented theoretical studies apply for arbitrary charged particle and the attached figures-for electrons only.

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Characteristics of laser-driven electron acceleration in vacuum

Cited by 63 publications

References 47 publications

Sensitiveness of axial magnetic field on electron acceleration by a radially polarized laser pulse in vacuum

Sensitiveness of axial magnetic field on electron acceleration by a radially polarized laser pulse in vacuum

Radiation damping in pulsed Gaussian beams

Basic features of a charged particle dynamics in a laser beam with static axial magnetic field

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