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Self-absorption of ...
Self-absorption of synchrotron radiation in a laser-irradiated plasma
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- Blackburn, Thomas, 1989 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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MacLeod, A. J. (författare)
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Ilderton, A. (författare)
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King, B. (författare)
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Tang, S. (författare)
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- Marklund, Mattias, 1970 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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(creator_code:org_t)
- AIP Publishing, 2021
- 2021
- Engelska.
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Ingår i: Physics of Plasmas. - : AIP Publishing. - 1070-664X .- 1089-7674. ; 28:5
- Relaterad länk:
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https://aip.scitatio...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Electrons at the surface of a plasma that is irradiated by a laser with intensity in excess of 1 0 23 W c m - 2 are accelerated so strongly that they emit bursts of synchrotron radiation. Although the combination of high photon and electron density and electromagnetic field strength at the plasma surface makes particle-particle interactions possible, these interactions are usually neglected in simulations of the high-intensity regime. Here we demonstrate an implementation of two such processes: photon absorption and stimulated emission. We show that, for plasmas that are opaque to the laser light, photon absorption would cause complete depletion of the multi-keV region of the synchrotron photon spectrum, unless compensated by stimulated emission. Our results motivate further study of the density dependence of quantum electrodynamics phenomena in strong electromagnetic fields.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- weighted particles
- physics
- photon
- field
- simulations
- scattering
- collisions
- pair
- Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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