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Beyond the ponderomotive limit: Direct laser acceleration of relativistic electrons in sub-critical plasmas

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Beyond the ponderomotive limit: Direct laser acceleration of relativistic electrons in sub-critical plasmas. / Arefiev, A. V.; Khudik, V. N.; Robinson, A. P. L. et al.
In: Physics of Plasmas, Vol. 23, No. 5, 056704, 05.2016.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Arefiev, AV, Khudik, VN, Robinson, APL, Shvets, G, Willingale, L & Schollmeier, M 2016, 'Beyond the ponderomotive limit: Direct laser acceleration of relativistic electrons in sub-critical plasmas', Physics of Plasmas, vol. 23, no. 5, 056704. https://doi.org/10.1063/1.4946024

APA

Arefiev, A. V., Khudik, V. N., Robinson, A. P. L., Shvets, G., Willingale, L., & Schollmeier, M. (2016). Beyond the ponderomotive limit: Direct laser acceleration of relativistic electrons in sub-critical plasmas. Physics of Plasmas, 23(5), Article 056704. https://doi.org/10.1063/1.4946024

Vancouver

Arefiev AV, Khudik VN, Robinson APL, Shvets G, Willingale L, Schollmeier M. Beyond the ponderomotive limit: Direct laser acceleration of relativistic electrons in sub-critical plasmas. Physics of Plasmas. 2016 May;23(5):056704. Epub 2016 Apr 20. doi: 10.1063/1.4946024

Author

Arefiev, A. V. ; Khudik, V. N. ; Robinson, A. P. L. et al. / Beyond the ponderomotive limit : Direct laser acceleration of relativistic electrons in sub-critical plasmas. In: Physics of Plasmas. 2016 ; Vol. 23, No. 5.

Bibtex

@article{4cf13269380d4321abaf3dca2375b50f,
title = "Beyond the ponderomotive limit: Direct laser acceleration of relativistic electrons in sub-critical plasmas",
abstract = "We examine a regime in which a linearly polarized laser pulse with relativistic intensity irradiates a sub-critical plasma for much longer than the characteristic electron response time. A steady-state channel is formed in the plasma in this case with quasi-static transverse and longitudinal electric fields. These relatively weak fields significantly alter the electron dynamics. The longitudinal electric field reduces the longitudinal dephasing between the electron and the wave, leading to an enhancement of the electron energy gain from the pulse. The energy gain in this regime is ultimately limited by the superluminosity of the wave fronts induced by the plasma in the channel. The transverse electric field alters the oscillations of the transverse electron velocity, allowing it to remain anti-parallel to laser electric field and leading to a significant energy gain. The energy enhancement is accompanied by the development of significant oscillations perpendicular to the plane of the driven motion, making trajectories of energetic electrons three-dimensional. Proper electron injection into the laser beam can further boost the electron energy gain. Published by AIP Publishing.",
keywords = "INTENSITY, PULSE",
author = "Arefiev, {A. V.} and Khudik, {V. N.} and Robinson, {A. P. L.} and G. Shvets and L. Willingale and M. Schollmeier",
year = "2016",
month = may,
doi = "10.1063/1.4946024",
language = "English",
volume = "23",
journal = "Physics of Plasmas",
issn = "1070-664X",
publisher = "American Institute of Physics Inc.",
number = "5",
note = "57th Annual Meeting of the APS-Division-of-Plasma-Physics (DPP) ; Conference date: 16-11-2015 Through 20-11-2015",

}

RIS

TY - JOUR

T1 - Beyond the ponderomotive limit

T2 - 57th Annual Meeting of the APS-Division-of-Plasma-Physics (DPP)

AU - Arefiev, A. V.

AU - Khudik, V. N.

AU - Robinson, A. P. L.

AU - Shvets, G.

AU - Willingale, L.

AU - Schollmeier, M.

PY - 2016/5

Y1 - 2016/5

N2 - We examine a regime in which a linearly polarized laser pulse with relativistic intensity irradiates a sub-critical plasma for much longer than the characteristic electron response time. A steady-state channel is formed in the plasma in this case with quasi-static transverse and longitudinal electric fields. These relatively weak fields significantly alter the electron dynamics. The longitudinal electric field reduces the longitudinal dephasing between the electron and the wave, leading to an enhancement of the electron energy gain from the pulse. The energy gain in this regime is ultimately limited by the superluminosity of the wave fronts induced by the plasma in the channel. The transverse electric field alters the oscillations of the transverse electron velocity, allowing it to remain anti-parallel to laser electric field and leading to a significant energy gain. The energy enhancement is accompanied by the development of significant oscillations perpendicular to the plane of the driven motion, making trajectories of energetic electrons three-dimensional. Proper electron injection into the laser beam can further boost the electron energy gain. Published by AIP Publishing.

AB - We examine a regime in which a linearly polarized laser pulse with relativistic intensity irradiates a sub-critical plasma for much longer than the characteristic electron response time. A steady-state channel is formed in the plasma in this case with quasi-static transverse and longitudinal electric fields. These relatively weak fields significantly alter the electron dynamics. The longitudinal electric field reduces the longitudinal dephasing between the electron and the wave, leading to an enhancement of the electron energy gain from the pulse. The energy gain in this regime is ultimately limited by the superluminosity of the wave fronts induced by the plasma in the channel. The transverse electric field alters the oscillations of the transverse electron velocity, allowing it to remain anti-parallel to laser electric field and leading to a significant energy gain. The energy enhancement is accompanied by the development of significant oscillations perpendicular to the plane of the driven motion, making trajectories of energetic electrons three-dimensional. Proper electron injection into the laser beam can further boost the electron energy gain. Published by AIP Publishing.

KW - INTENSITY

KW - PULSE

U2 - 10.1063/1.4946024

DO - 10.1063/1.4946024

M3 - Journal article

VL - 23

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 5

M1 - 056704

Y2 - 16 November 2015 through 20 November 2015

ER -