Acceleration of dense electron bunches at the front of a high-power electromagnetic wave

Il'in, A. S.; Kulagin, V. V.; Черепенин, В. А.

doi:10.1134/1.1426140

Cited by 9 publications

(4 citation statements)

References 16 publications

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“…Generation of a subpicosecond EM pulse with more than 10% chirp from a free-electron laser was demonstrated experimentally [8]. To generate even larger chirps, the reflection of EM pulses from a relativistic ionization front [9] looks promising when the gamma factor of the front changes during the reflection [10]. In the following, we investigate the interaction of an electron with a chirped EM pulse.…”

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confidence: 99%

Interaction of free charged particles with a chirped electromagnetic pulse

2004

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We study the effect of chirp on electromagnetic (EM) pulse interaction with a charged particle. Both the one-dimensional (1D) and 3D cases are considered. It is found that, in contrast to the case of a nonchirped pulse, the charged particle energy can be changed after the interaction with a 1D EM chirped pulse. Different types of chirp and pulse envelopes are considered. In the case of small chirp, an analytical expression is found for arbitrary temporal profiles of the chirp and the pulse envelope. In the 3D case, the interaction with a chirped pulse results in a polarization-dependent scattering of charged particles.

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confidence: 99%

Interaction of free charged particles with a chirped electromagnetic pulse

2004

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“…Effective forces similar to Eqs. (6-7) have been obtained earlier for a one-dimensional plasma sheet (Il'in et al, 2001).…”

Section: Averaged Radiation Reaction Forcementioning

confidence: 99%

“…It was realized already many years ago (Veksler, 1957) that these effects can even dominate the bunch dynamics and may be exploited as a collective acceleration mechanism. More recently, the ultra-intense field regime in which radiation reaction effects become dominant has been analyzed (Bulanov et al, 2004) and the acceleration of plasma sheets assisted by radiation reaction has been considered (Il'in et al, 2001;Kulagin et al, 2004) in the context of current technological possibilities.…”

Section: Introductionmentioning

confidence: 99%

Coherently enhanced radiation reaction effects in laser-vacuum acceleration of electron bunches

Smorenburg¹,

Kamp²,

Geloni³

et al. 2010

Laser Part. Beams

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The effects of coherently enhanced radiation reaction on the motion of subwavelength electron bunches in interaction with intense laser pulses are analyzed. The radiation reaction force behaves as a radiation pressure in the laser beam direction, combined with a viscous force in the perpendicular direction. Due to Coulomb expansion of the electron bunch, coherent radiation reaction effects only occur in the initial stage of the laser-bunch interaction while the bunch is still smaller than the wavelength. It is shown that this initial stage can have observable effects on the trajectory of the bunch. By scaling the system to larger bunch charges, these effects may be increased to such an extent that they can suppress the radial instability normally found in ponderomotive acceleration schemes, thereby enabling the full potential of laser-vacuum electron bunch acceleration to GeV energies.

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“…Computer simulations showed that the ␥ factor of an electron mirror produced by a high-intensity femtosecond laser pulse, focused on a thin solid target, could increase from ϳ1 to the value ϳ10 3 . 9 So, the local frequency in the reflected EM pulse will change considerably due to the relativistic Doppler effect. The plasma electron density spike in a nonlinear laser wakefield can also serve as a relativistic mirror with changing velocity if the group velocity of the laser pulse, which is practically equal to the wake phase velocity, changes.…”

Section: Introductionmentioning

confidence: 99%

Effect of frequency variation on electromagnetic pulse interaction with charges and plasma

et al. 2005

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The effect of frequency variation (chirp) in an electromagnetic (EM) pulse on the pulse interaction with a charged particle and plasma is studied. Various types of chirp and pulse envelopes are considered. In vacuum, a charged particle receives a kick in the polarization direction after interaction with a chirped EM pulse. Interaction of a one-dimensional chirped pulse with uniform plasma is considered. We found that the amplitude of the wake wave generated in plasma by an EM pulse can be significantly higher when the pulse is chirped.

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Acceleration of dense electron bunches at the front of a high-power electromagnetic wave

Cited by 9 publications

References 16 publications

Interaction of free charged particles with a chirped electromagnetic pulse

Interaction of free charged particles with a chirped electromagnetic pulse

Coherently enhanced radiation reaction effects in laser-vacuum acceleration of electron bunches

Effect of frequency variation on electromagnetic pulse interaction with charges and plasma

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