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This content will become publicly available on August 3, 2017

Title: Hydrodynamic modeling of laser interaction with micro-structured targets

A model is developed for numerical simulations of laser absorption in plasmas made of porous materials, with particular interest in low-density foams. Laser absorption is treated on two spatial scales simultaneously. At the microscale, the expansion of a thin solid pore wall is modeled in one dimension and the information obtained is used in the macroscale fluid simulations for the description of the plasma homogenization behind the ionization front. This two-scale laser absorption model is implemented in the arbitrary Lagrangian–Eulerian hydrocode PALE. In conclusion, the numerical simulations of laser penetration into low-density foams compare favorably with published experimental data.
 [1] ;  [2] ;  [2] ;  [3]
  1. Czech Technical Univ. in Prague, Prague (Czech Republic); Univ. de Bordeaux, Talence cedex (France); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Czech Technical Univ. in Prague, Prague (Czech Republic)
  3. Univ. de Bordeaux, Talence cedex (France)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0741-3335
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Plasma Physics and Controlled Fusion
Additional Journal Information:
Journal Volume: 58; Journal Issue: 9; Journal ID: ISSN 0741-3335
IOP Science
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
Work performed elsewhere; USDOE
Country of Publication:
United States
70 PLASMA PHYSICS AND FUSION TECHNOLOGY atomic and nuclear physics; laser; absorption; foam; modeling; multiscale