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Channel optimization of high-intensity laser beams in millimeter-scale plasmas

Abstract:
Channeling experiments were performed at the OMEGA EP facility using relativistic intensity ( > 10 18 W / cm 2 ) kilojoule laser pulses through large density scale length ( ∼ 390 – 570 μ m ) laser-produced plasmas, demonstrating the effects of the pulse's focal location and intensity as well as the plasma's temperature on the resulting channel formation. The results show deeper channeling when focused into hot plasmas and at lower densities, as expected. However, contrary to previous large-scale particle-in-cell studies, the results also indicate deeper penetration by short (10 ps), intense pulses compared to their longer-duration equivalents. This new observation has many implications for future laser-plasma research in the relativistic regime.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevE.97.043208

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author


Publisher:
American Physical Society
Journal:
Physical Review E More from this journal
Volume:
97
Issue:
4
Article number:
043208
Publication date:
2018-04-20
Acceptance date:
2018-03-28
DOI:
EISSN:
2470-0053
ISSN:
2470-0045


Pubs id:
pubs:844200
UUID:
uuid:f97edeb6-ad3b-43fb-b84f-caa97dd4115f
Local pid:
pubs:844200
Source identifiers:
844200
Deposit date:
2018-04-25

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