Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements

M. J.V. Streeter; B. Kettle; S. J.D. Dann; E. Gerstmayr; F. Albert; N. Bourgeois; S. Cipiccia; I. Gallardo González; A. E. Hussein; D. A. Jaroszynski; K. Falk; K. Krushelnick; N. Lemos; N. C. Lopes; C. Lumsdon; O. Lundh; S. P.D. Mangles; Z. Najmudin; P. P. Rajeev; R. Sandberg; M. Shahzad; M. Smid; R. Spesyvtsev; D. R. Symes; G. Vieux; A. G.R. Thomas

doi:10.1103/PhysRevAccelBeams.25.101302

Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements

M. J.V. Streeter
, B. Kettle
, S. J.D. Dann
, E. Gerstmayr
, F. Albert
, N. Bourgeois
, S. Cipiccia
, I. Gallardo González
, A. E. Hussein
, D. A. Jaroszynski
, K. Falk
, K. Krushelnick
, N. Lemos
, N. C. Lopes
, C. Lumsdon
, O. Lundh
, S. P.D. Mangles
, Z. Najmudin
, P. P. Rajeev
, R. Sandberg

M. Shahzad, M. Smid, R. Spesyvtsev, D. R. Symes, G. Vieux, A. G.R. Thomas

School of Mathematics and Physics

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

4 Citations (Scopus)

66 Downloads (Pure)

Abstract

We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield and from the plasma to the accelerated electron beam was diagnosed by simultaneous measurement of the deceleration of laser photons and the acceleration of electrons as a function of plasma length. The extraction efficiency, which we define as the ratio of the energy gained by the electron beam to the energy lost by the self-guided laser mode, was maximized at 19±3% by tuning the plasma density and length. The additional information provided by the octave-spanning laser spectrum measurement allows for independent optimization of the plasma efficiency terms, which is required for the key goal of improving the overall efficiency of laser wakefield accelerators.

Original language	English
Article number	101302
Number of pages	7
Journal	Physical Review Accelerators and Beams
Volume	25
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevAccelBeams.25.101302
Publication status	Published - 31 Oct 2022

Bibliographical note

Funding Information:
We acknowledge support from the UK STFC core Grants No. ST/P002056/1 (Cockcroft Institute), No. ST/P000835/1, No. ST/P002021/1, and No. ST/V001639/1 (John Adams Institute), UK EPSRC (EP/J018171/1, EP/N028694/1), the European Union’s Horizon 2020 research and innovation programme under grant agreement Laserlab-Europe (871124), the National Science Foundation (Grant No. 1804463) and the Air Force Office of Scientific Research (Grant No. FA9550-16-1-0121). F. A. acknowledges funding from the DOE Early Career research program (Fusion Energy Sciences SCW1575-1).

Publisher Copyright:
© 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)
Surfaces and Interfaces

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Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements
Copyright 2022 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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Streeter, M. J. V., Kettle, B., Dann, S. J. D., Gerstmayr, E., Albert, F., Bourgeois, N., Cipiccia, S., Gallardo González, I., Hussein, A. E., Jaroszynski, D. A., Falk, K., Krushelnick, K., Lemos, N., Lopes, N. C., Lumsdon, C., Lundh, O., Mangles, S. P. D., Najmudin, Z., Rajeev, P. P., ... Thomas, A. G. R. (2022). Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements. Physical Review Accelerators and Beams, 25(10), Article 101302. https://doi.org/10.1103/PhysRevAccelBeams.25.101302

@article{283cc0a6666144d7ab6d57cd25e8da14,

title = "Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements",

abstract = "We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield and from the plasma to the accelerated electron beam was diagnosed by simultaneous measurement of the deceleration of laser photons and the acceleration of electrons as a function of plasma length. The extraction efficiency, which we define as the ratio of the energy gained by the electron beam to the energy lost by the self-guided laser mode, was maximized at 19±3\% by tuning the plasma density and length. The additional information provided by the octave-spanning laser spectrum measurement allows for independent optimization of the plasma efficiency terms, which is required for the key goal of improving the overall efficiency of laser wakefield accelerators. ",

author = "Streeter, \{M. J.V.\} and B. Kettle and Dann, \{S. J.D.\} and E. Gerstmayr and F. Albert and N. Bourgeois and S. Cipiccia and \{Gallardo Gonz{\'a}lez\}, I. and Hussein, \{A. E.\} and Jaroszynski, \{D. A.\} and K. Falk and K. Krushelnick and N. Lemos and Lopes, \{N. C.\} and C. Lumsdon and O. Lundh and Mangles, \{S. P.D.\} and Z. Najmudin and Rajeev, \{P. P.\} and R. Sandberg and M. Shahzad and M. Smid and R. Spesyvtsev and Symes, \{D. R.\} and G. Vieux and Thomas, \{A. G.R.\}",

note = "Funding Information: We acknowledge support from the UK STFC core Grants No. ST/P002056/1 (Cockcroft Institute), No. ST/P000835/1, No. ST/P002021/1, and No. ST/V001639/1 (John Adams Institute), UK EPSRC (EP/J018171/1, EP/N028694/1), the European Union{\textquoteright}s Horizon 2020 research and innovation programme under grant agreement Laserlab-Europe (871124), the National Science Foundation (Grant No. 1804463) and the Air Force Office of Scientific Research (Grant No. FA9550-16-1-0121). F. A. acknowledges funding from the DOE Early Career research program (Fusion Energy Sciences SCW1575-1). Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2022",

month = oct,

day = "31",

doi = "10.1103/PhysRevAccelBeams.25.101302",

language = "English",

volume = "25",

journal = "Physical Review Accelerators and Beams",

issn = "2469-9888",

publisher = "American Physical Society",

number = "10",

}

Streeter, MJV, Kettle, B, Dann, SJD, Gerstmayr, E, Albert, F, Bourgeois, N, Cipiccia, S, Gallardo González, I, Hussein, AE, Jaroszynski, DA, Falk, K, Krushelnick, K, Lemos, N, Lopes, NC, Lumsdon, C, Lundh, O, Mangles, SPD, Najmudin, Z, Rajeev, PP, Sandberg, R, Shahzad, M, Smid, M, Spesyvtsev, R, Symes, DR, Vieux, G & Thomas, AGR 2022, 'Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements', Physical Review Accelerators and Beams, vol. 25, no. 10, 101302. https://doi.org/10.1103/PhysRevAccelBeams.25.101302

TY - JOUR

T1 - Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements

AU - Streeter, M. J.V.

AU - Kettle, B.

AU - Dann, S. J.D.

AU - Gerstmayr, E.

AU - Albert, F.

AU - Bourgeois, N.

AU - Cipiccia, S.

AU - Gallardo González, I.

AU - Hussein, A. E.

AU - Jaroszynski, D. A.

AU - Falk, K.

AU - Krushelnick, K.

AU - Lemos, N.

AU - Lopes, N. C.

AU - Lumsdon, C.

AU - Lundh, O.

AU - Mangles, S. P.D.

AU - Najmudin, Z.

AU - Rajeev, P. P.

AU - Sandberg, R.

AU - Shahzad, M.

AU - Smid, M.

AU - Spesyvtsev, R.

AU - Symes, D. R.

AU - Vieux, G.

AU - Thomas, A. G.R.

N1 - Funding Information: We acknowledge support from the UK STFC core Grants No. ST/P002056/1 (Cockcroft Institute), No. ST/P000835/1, No. ST/P002021/1, and No. ST/V001639/1 (John Adams Institute), UK EPSRC (EP/J018171/1, EP/N028694/1), the European Union’s Horizon 2020 research and innovation programme under grant agreement Laserlab-Europe (871124), the National Science Foundation (Grant No. 1804463) and the Air Force Office of Scientific Research (Grant No. FA9550-16-1-0121). F. A. acknowledges funding from the DOE Early Career research program (Fusion Energy Sciences SCW1575-1). Publisher Copyright: © 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2022/10/31

Y1 - 2022/10/31

N2 - We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield and from the plasma to the accelerated electron beam was diagnosed by simultaneous measurement of the deceleration of laser photons and the acceleration of electrons as a function of plasma length. The extraction efficiency, which we define as the ratio of the energy gained by the electron beam to the energy lost by the self-guided laser mode, was maximized at 19±3% by tuning the plasma density and length. The additional information provided by the octave-spanning laser spectrum measurement allows for independent optimization of the plasma efficiency terms, which is required for the key goal of improving the overall efficiency of laser wakefield accelerators.

AB - We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield and from the plasma to the accelerated electron beam was diagnosed by simultaneous measurement of the deceleration of laser photons and the acceleration of electrons as a function of plasma length. The extraction efficiency, which we define as the ratio of the energy gained by the electron beam to the energy lost by the self-guided laser mode, was maximized at 19±3% by tuning the plasma density and length. The additional information provided by the octave-spanning laser spectrum measurement allows for independent optimization of the plasma efficiency terms, which is required for the key goal of improving the overall efficiency of laser wakefield accelerators.

U2 - 10.1103/PhysRevAccelBeams.25.101302

DO - 10.1103/PhysRevAccelBeams.25.101302

M3 - Article

AN - SCOPUS:85141565718

SN - 2469-9888

VL - 25

JO - Physical Review Accelerators and Beams

JF - Physical Review Accelerators and Beams

IS - 10

M1 - 101302

ER -

Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements

Abstract

Bibliographical note

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