Ray-based modeling of cross-beam energy transfer between broadband lasers
ORAL
Abstract
Broadband laser drivers (>1% relative bandwidth) have the potential to mitigate many of the laser plasma instabilities that limit the performance of current direct-drive inertial confinement fusion implosions. To make a quantitative assessment of the impact of bandwidth, laser bandwidth models need to be included in the radiation hydrodynamic codes that are used to simulate implosions. Two different approaches to broadband ray-based cross-beam energy transfer (CBET) modeling (discrete and fixed spectrum) are developed and shown to be in good agreement with wave-based calculations.
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Presenters
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Russell K Follett
Laboratory for Laser Energetics - Rochester, University of Rochester, Laboratory for Laser Energetics
Authors
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Russell K Follett
Laboratory for Laser Energetics - Rochester, University of Rochester, Laboratory for Laser Energetics
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Han Wen
University of Rochester
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Dustin H Froula
University of Rochester, University of Rochester, Laboratory for Laser Energetics
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John P Palastro
University of Rochester, University of Rochester, Laboratory for Laser Energetics
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Arnaud Colaitis
CELIA
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Alexander G Seaton
Los Alamos National Laboratory, Los Alamos National Laboratory, Los Alamos, NM 87544, USA