Ultra-intense laser pulses in near-critical underdense plasmas - Radiation reaction and energy partitioning
(2017) In Journal of Plasma Physics 83(2).- Abstract
Although, for current laser pulse energies, the weakly nonlinear regime of laser wakefield acceleration is known to be the optimal for reaching the highest possible electron energies, the capabilities of upcoming large laser systems will provide the possibility of running highly nonlinear regimes of laser pulse propagation in underdense or near-critical plasmas. Using an extended particle-in-cell (PIC) model that takes into account all the relevant physics, we show that such regimes can be implemented with external guiding for a relatively long distance of propagation and allow for the stable transformation of laser energy into other types of energy, including the kinetic energy of a large number of high energy electrons and their... (More)
Although, for current laser pulse energies, the weakly nonlinear regime of laser wakefield acceleration is known to be the optimal for reaching the highest possible electron energies, the capabilities of upcoming large laser systems will provide the possibility of running highly nonlinear regimes of laser pulse propagation in underdense or near-critical plasmas. Using an extended particle-in-cell (PIC) model that takes into account all the relevant physics, we show that such regimes can be implemented with external guiding for a relatively long distance of propagation and allow for the stable transformation of laser energy into other types of energy, including the kinetic energy of a large number of high energy electrons and their incoherent emission of photons. This is despite the fact that the high intensity of the laser pulse triggers a number of new mechanisms of energy depletion, which we investigate systematically.
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- author
- Wallin, Erik ; Gonoskov, Arkady ; Harvey, Christopher ; Lundh, Olle LU and Marklund, Mattias
- organization
- publishing date
- 2017-04-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Plasma interactions, Plasma nonlinear phenomena, Plasma simulation
- in
- Journal of Plasma Physics
- volume
- 83
- issue
- 2
- article number
- 905830208
- publisher
- Cambridge University Press
- external identifiers
-
- scopus:85033783182
- wos:000407255500014
- ISSN
- 0022-3778
- DOI
- 10.1017/S0022377817000320
- language
- English
- LU publication?
- yes
- id
- afdfd3f0-6327-4cd8-9d84-6328e8b0dbd5
- date added to LUP
- 2017-11-29 10:58:45
- date last changed
- 2025-01-08 01:50:14
@article{afdfd3f0-6327-4cd8-9d84-6328e8b0dbd5,
abstract = {{<p>Although, for current laser pulse energies, the weakly nonlinear regime of laser wakefield acceleration is known to be the optimal for reaching the highest possible electron energies, the capabilities of upcoming large laser systems will provide the possibility of running highly nonlinear regimes of laser pulse propagation in underdense or near-critical plasmas. Using an extended particle-in-cell (PIC) model that takes into account all the relevant physics, we show that such regimes can be implemented with external guiding for a relatively long distance of propagation and allow for the stable transformation of laser energy into other types of energy, including the kinetic energy of a large number of high energy electrons and their incoherent emission of photons. This is despite the fact that the high intensity of the laser pulse triggers a number of new mechanisms of energy depletion, which we investigate systematically.</p>}},
author = {{Wallin, Erik and Gonoskov, Arkady and Harvey, Christopher and Lundh, Olle and Marklund, Mattias}},
issn = {{0022-3778}},
keywords = {{Plasma interactions; Plasma nonlinear phenomena; Plasma simulation}},
language = {{eng}},
month = {{04}},
number = {{2}},
publisher = {{Cambridge University Press}},
series = {{Journal of Plasma Physics}},
title = {{Ultra-intense laser pulses in near-critical underdense plasmas - Radiation reaction and energy partitioning}},
url = {{http://dx.doi.org/10.1017/S0022377817000320}},
doi = {{10.1017/S0022377817000320}},
volume = {{83}},
year = {{2017}},
}