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Spontaneous emergence of non-planar electron orbits during direct laser acceleration by a linearly polarized laser pulse

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Spontaneous emergence of non-planar electron orbits during direct laser acceleration by a linearly polarized laser pulse. / Arefiev, A. V.; Khudik, V. N.; Robinson, A. P. L.; Shvets, G.; Willingale, L.

In: Physics of Plasmas, Vol. 23, No. 2, 023111, 02.2016.

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Arefiev, A. V. ; Khudik, V. N. ; Robinson, A. P. L. ; Shvets, G. ; Willingale, L. / Spontaneous emergence of non-planar electron orbits during direct laser acceleration by a linearly polarized laser pulse. In: Physics of Plasmas. 2016 ; Vol. 23, No. 2.

Bibtex

@article{b630edb7e370462aa96216551c386ad5,
title = "Spontaneous emergence of non-planar electron orbits during direct laser acceleration by a linearly polarized laser pulse",
abstract = "An electron irradiated by a linearly polarized relativistic intensity laser pulse in a cylindrical plasma channel can gain significant energy from the pulse. The laser electric and magnetic fields drive electron oscillations in a plane making it natural to expect the electron trajectory to be flat. We show that strong modulations of the relativistic gamma-factor associated with the energy enhancement cause the free oscillations perpendicular to the plane of the driven motion to become unstable. As a consequence, out of plane displacements grow to become comparable to the amplitude of the driven oscillations and the electron trajectory becomes essentially three-dimensional, even if at an early stage of the acceleration it was flat. The development of the instability profoundly affects the x-ray emission, causing considerable divergence of the radiation perpendicular to the plane of the driven oscillations, while also reducing the overall emitted energy. (C) 2016 AIP Publishing LLC.",
keywords = "GENERATION, CHANNELS",
author = "Arefiev, {A. V.} and Khudik, {V. N.} and Robinson, {A. P. L.} and G. Shvets and L. Willingale",
year = "2016",
month = feb,
doi = "10.1063/1.4942036",
language = "English",
volume = "23",
journal = "Physics of Plasmas",
issn = "1070-664X",
publisher = "American Institute of Physics Inc.",
number = "2",

}

RIS

TY - JOUR

T1 - Spontaneous emergence of non-planar electron orbits during direct laser acceleration by a linearly polarized laser pulse

AU - Arefiev, A. V.

AU - Khudik, V. N.

AU - Robinson, A. P. L.

AU - Shvets, G.

AU - Willingale, L.

PY - 2016/2

Y1 - 2016/2

N2 - An electron irradiated by a linearly polarized relativistic intensity laser pulse in a cylindrical plasma channel can gain significant energy from the pulse. The laser electric and magnetic fields drive electron oscillations in a plane making it natural to expect the electron trajectory to be flat. We show that strong modulations of the relativistic gamma-factor associated with the energy enhancement cause the free oscillations perpendicular to the plane of the driven motion to become unstable. As a consequence, out of plane displacements grow to become comparable to the amplitude of the driven oscillations and the electron trajectory becomes essentially three-dimensional, even if at an early stage of the acceleration it was flat. The development of the instability profoundly affects the x-ray emission, causing considerable divergence of the radiation perpendicular to the plane of the driven oscillations, while also reducing the overall emitted energy. (C) 2016 AIP Publishing LLC.

AB - An electron irradiated by a linearly polarized relativistic intensity laser pulse in a cylindrical plasma channel can gain significant energy from the pulse. The laser electric and magnetic fields drive electron oscillations in a plane making it natural to expect the electron trajectory to be flat. We show that strong modulations of the relativistic gamma-factor associated with the energy enhancement cause the free oscillations perpendicular to the plane of the driven motion to become unstable. As a consequence, out of plane displacements grow to become comparable to the amplitude of the driven oscillations and the electron trajectory becomes essentially three-dimensional, even if at an early stage of the acceleration it was flat. The development of the instability profoundly affects the x-ray emission, causing considerable divergence of the radiation perpendicular to the plane of the driven oscillations, while also reducing the overall emitted energy. (C) 2016 AIP Publishing LLC.

KW - GENERATION

KW - CHANNELS

U2 - 10.1063/1.4942036

DO - 10.1063/1.4942036

M3 - Journal article

VL - 23

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 2

M1 - 023111

ER -