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Resonant excitation of plasma waves in a plasma channel

Abstract:
We demonstrate resonant excitation of a plasma wave by a train of short laser pulses guided in a preformed plasma channel, for parameters relevant to a plasma-modulated plasma accelerator (P-MoPA). We show experimentally that a train of N≈10 short pulses, of total energy ∼1J, can be guided through 110mm long plasma channels with on-axis densities in the range 1017-1018cm-3. The spectrum of the transmitted train is found to be strongly red shifted when the plasma period is tuned to the intratrain pulse spacing. Numerical simulations are found to be in excellent agreement with the measurements and indicate that the resonantly excited plasma waves have an amplitude in the range 3-10GVm-1, corresponding to an accelerator stage energy gain of order 1GeV.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/physrevresearch.6.l022001

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
ORCID:
0000-0001-8513-3918


More from this funder
Grant:
ST/P002048/1
ST/V001612/1
ST/V001655/1
ST/R505006/1
ST/S505833/1


Publisher:
American Physical Society
Journal:
Physical Review Research More from this journal
Volume:
6
Issue:
2
Article number:
L022001
Publication date:
2024-04-03
Acceptance date:
2024-02-26
DOI:
EISSN:
2643-1564


Language:
English
Pubs id:
1989256
Local pid:
pubs:1989256
Deposit date:
2024-05-01

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