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Title: High energy gain in three-dimensional simulations of light sail acceleration

The dynamics of radiation pressure acceleration in the relativistic light sail regime are analysed by means of large scale, three-dimensional (3D) particle-in-cell simulations. Differently to other mechanisms, the 3D dynamics leads to faster and higher energy gain than in 1D or 2D geometry. This effect is caused by the local decrease of the target density due to transverse expansion leading to a “lighter sail.” However, the rarefaction of the target leads to an earlier transition to transparency limiting the energy gain. A transverse instability leads to a structured and inhomogeneous ion distribution.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [2] ;  [3] ;  [2]
  1. Dipartimento di Energia, Politecnico di Milano, Milano (Italy)
  2. (Italy)
  3. CNR, Istituto Nazionale di Ottica, u.o.s. “Adriano Gozzini,” Pisa (Italy)
Publication Date:
OSTI Identifier:
22311001
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 8; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACCELERATION; DENSITY; DISTRIBUTION; GAIN; RADIATION PRESSURE; RELATIVISTIC RANGE; SIMULATION; THREE-DIMENSIONAL CALCULATIONS; VISIBLE RADIATION