Multi-GeV electron acceleration in wakefields strongly driven by oversized laser spots

Gianluca Sarri; J Wood; K Poder; N Lopes; J.M. Cole; S Alatabi; M. Backhouse; P. Foster; A. Hughes; C. Kamperidis; O. Kononenko; S.P.D. Mangles; Charlotte Palmer; D. Rusby; A. Sahai; D. Symes; Jonathan Richard Warwick; Z. Najmudin

doi:10.1103/PhysRevLett.132.195001

Multi-GeV electron acceleration in wakefields strongly driven by oversized laser spots

Gianluca Sarri, J Wood, K Poder^*, N Lopes, J.M. Cole, S Alatabi, M. Backhouse, P. Foster, A. Hughes, C. Kamperidis, O. Kononenko, S.P.D. Mangles, Charlotte Palmer, D. Rusby, A. Sahai, D. Symes, Jonathan Richard Warwick, Z. Najmudin

^*Corresponding author for this work

School of Mathematics and Physics

Research output: Contribution to journal › Article › peer-review

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Abstract

Experiments were performed on laser wakefield acceleration in the highly nonlinear regime. With laser powers P<250 TW and using an initial spot size larger than the matched spot size for guiding, we were able to accelerate electrons to energies Emax >2.5 GeV, in fields exceeding 500 G m−1, with more than 80 pC of charge at energies > 1GeV. Three-dimensional particle-in-cell simulations show that using an oversized spot delays injection, avoiding beam loss as the wakefield undergoes length oscillation. This enables injected electrons to remain in the regions of highest accelerating fields and leads to a doubling of energy gain as compared to results from using half the focal length with the same laser.

Original language	English
Article number	195001
Journal	Physical Review Letters
Volume	132
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.132.195001
Publication status	Published - 10 May 2024

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Multi-GeV electron acceleration in wakefields strongly driven by oversized laser spots
Copyright 2024 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
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Sarri, G., Wood, J., Poder, K., Lopes, N., Cole, J. M., Alatabi, S., Backhouse, M., Foster, P., Hughes, A., Kamperidis, C., Kononenko, O., Mangles, S. P. D., Palmer, C., Rusby, D., Sahai, A., Symes, D., Warwick, J. R., & Najmudin, Z. (2024). Multi-GeV electron acceleration in wakefields strongly driven by oversized laser spots. Physical Review Letters, 132(19), Article 195001. https://doi.org/10.1103/PhysRevLett.132.195001

@article{b209d34d63914485b1d79207af0e2ec6,

title = "Multi-GeV electron acceleration in wakefields strongly driven by oversized laser spots",

abstract = "Experiments were performed on laser wakefield acceleration in the highly nonlinear regime. With laser powers P<250 TW and using an initial spot size larger than the matched spot size for guiding, we were able to accelerate electrons to energies Emax >2.5 GeV, in fields exceeding 500 G m−1, with more than 80 pC of charge at energies > 1GeV. Three-dimensional particle-in-cell simulations show that using an oversized spot delays injection, avoiding beam loss as the wakefield undergoes length oscillation. This enables injected electrons to remain in the regions of highest accelerating fields and leads to a doubling of energy gain as compared to results from using half the focal length with the same laser.",

author = "Gianluca Sarri and J Wood and K Poder and N Lopes and J.M. Cole and S Alatabi and M. Backhouse and P. Foster and A. Hughes and C. Kamperidis and O. Kononenko and S.P.D. Mangles and Charlotte Palmer and D. Rusby and A. Sahai and D. Symes and Warwick, {Jonathan Richard} and Z. Najmudin",

year = "2024",

month = may,

day = "10",

doi = "10.1103/PhysRevLett.132.195001",

language = "English",

volume = "132",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "19",

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Sarri, G, Wood, J, Poder, K, Lopes, N, Cole, JM, Alatabi, S, Backhouse, M, Foster, P, Hughes, A, Kamperidis, C, Kononenko, O, Mangles, SPD, Palmer, C, Rusby, D, Sahai, A, Symes, D, Warwick, JR & Najmudin, Z 2024, 'Multi-GeV electron acceleration in wakefields strongly driven by oversized laser spots', Physical Review Letters, vol. 132, no. 19, 195001. https://doi.org/10.1103/PhysRevLett.132.195001

TY - JOUR

T1 - Multi-GeV electron acceleration in wakefields strongly driven by oversized laser spots

AU - Sarri, Gianluca

AU - Wood, J

AU - Poder, K

AU - Lopes, N

AU - Cole, J.M.

AU - Alatabi, S

AU - Backhouse, M.

AU - Foster, P.

AU - Hughes, A.

AU - Kamperidis, C.

AU - Kononenko, O.

AU - Mangles, S.P.D.

AU - Palmer, Charlotte

AU - Rusby, D.

AU - Sahai, A.

AU - Symes, D.

AU - Warwick, Jonathan Richard

AU - Najmudin, Z.

PY - 2024/5/10

Y1 - 2024/5/10

N2 - Experiments were performed on laser wakefield acceleration in the highly nonlinear regime. With laser powers P<250 TW and using an initial spot size larger than the matched spot size for guiding, we were able to accelerate electrons to energies Emax >2.5 GeV, in fields exceeding 500 G m−1, with more than 80 pC of charge at energies > 1GeV. Three-dimensional particle-in-cell simulations show that using an oversized spot delays injection, avoiding beam loss as the wakefield undergoes length oscillation. This enables injected electrons to remain in the regions of highest accelerating fields and leads to a doubling of energy gain as compared to results from using half the focal length with the same laser.

AB - Experiments were performed on laser wakefield acceleration in the highly nonlinear regime. With laser powers P<250 TW and using an initial spot size larger than the matched spot size for guiding, we were able to accelerate electrons to energies Emax >2.5 GeV, in fields exceeding 500 G m−1, with more than 80 pC of charge at energies > 1GeV. Three-dimensional particle-in-cell simulations show that using an oversized spot delays injection, avoiding beam loss as the wakefield undergoes length oscillation. This enables injected electrons to remain in the regions of highest accelerating fields and leads to a doubling of energy gain as compared to results from using half the focal length with the same laser.

U2 - 10.1103/PhysRevLett.132.195001

DO - 10.1103/PhysRevLett.132.195001

M3 - Article

SN - 0031-9007

VL - 132

JO - Physical Review Letters

JF - Physical Review Letters

IS - 19

M1 - 195001

ER -

Multi-GeV electron acceleration in wakefields strongly driven by oversized laser spots

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