All-optical compact plasma focusing and transportation of electron beams, in the passive mode of a plasma lens, is studied via real geometry particle-in-cell simulations for its suitability for the laser wakefield acceleration technique. The focusing of an electron beam by a passive plasma lens is a non-linear and dynamic process, which strongly depends on the space charge induced evacuation of the plasma electrons in the vicinity of the propagating electron beam. Effects of such focusing on the energy spread, divergence, and emittance of laser-driven electron beams are analyzed numerically for different plasma densities. An initially negative chirp in electron beam energy is shown to be instrumental in suppressing the unwanted growth in the relative energy spread of the electron beam during the passive lensing. Usefulness of such a passive plasma element for a single and multi-stage laser wakefield acceleration configuration is demonstrated.
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June 2023
Research Article|
June 13 2023
Focusing and reduction of correlated energy spread of chirped electron beams in passive plasma lens
N. Pathak
;
N. Pathak
a)
(Conceptualization, Data curation, Formal analysis, Investigation, Software, Writing – original draft, Writing – review & editing)
1
Institute of Scientific and Industrial Research (Sanken), Osaka University
, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
2
Laser Accelerator R&D, Innovative Light Sources Division, RIKEN SPring-8 Center
, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
a)Author to whom correspondence should be addressed: [email protected]
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A. Zhidkov
;
A. Zhidkov
(Conceptualization, Data curation, Formal analysis, Investigation, Software, Writing – original draft, Writing – review & editing)
1
Institute of Scientific and Industrial Research (Sanken), Osaka University
, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
2
Laser Accelerator R&D, Innovative Light Sources Division, RIKEN SPring-8 Center
, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
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D. Oumbarek Espinos;
D. Oumbarek Espinos
(Writing – review & editing)
1
Institute of Scientific and Industrial Research (Sanken), Osaka University
, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
2
Laser Accelerator R&D, Innovative Light Sources Division, RIKEN SPring-8 Center
, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
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T. Hosokai
T. Hosokai
(Funding acquisition, Writing – review & editing)
1
Institute of Scientific and Industrial Research (Sanken), Osaka University
, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
2
Laser Accelerator R&D, Innovative Light Sources Division, RIKEN SPring-8 Center
, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
Search for other works by this author on:
a)Author to whom correspondence should be addressed: [email protected]
Phys. Plasmas 30, 063103 (2023)
Article history
Received:
February 07 2023
Accepted:
May 27 2023
Citation
N. Pathak, A. Zhidkov, D. Oumbarek Espinos, T. Hosokai; Focusing and reduction of correlated energy spread of chirped electron beams in passive plasma lens. Phys. Plasmas 1 June 2023; 30 (6): 063103. https://doi.org/10.1063/5.0145693
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