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Title: Ion acceleration by intense, few-cycle laser pulses with nanodroplets

The energy distribution of electrons and ions emerging from the interaction of a few-cycle Gaussian laser pulse with spherical nanoclusters is investigated with the aim of determining prospects for accelerating ions in this regime. It is found that the direct conversion of laser energy into dense attosecond electron nanobunches results in rapid charge separation and early onset of Coulomb-explosion-dominated ion dynamics. The ion core of the cluster starts to expand soon after the laser has crossed the droplet, the fastest ions attaining 10 s of MeV at relativistic intensities. The current investigation should serve as a guide for contemporary experiments, i.e., using state-of-the-art few-cycle ultraintense lasers and nanoclusters of solid density.
Authors:
 [1] ;  [2] ;  [1] ;  [3]
  1. Forschungszentrum Jülich GmbH, Institute for Advanced Simulation, Jülich Supercomputing Centre D-52425 Jülich (Germany)
  2. Max Born Institute, Max Born Str. 2a, D-12489 Berlin (Germany)
  3. (Belgium)
Publication Date:
OSTI Identifier:
22410341
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATION; COULOMB FIELD; ELECTRONS; ENERGY SPECTRA; INTERACTIONS; IONS; LASERS; MEV RANGE; NANOSTRUCTURES; PULSES; RELATIVISTIC RANGE; SPHERICAL CONFIGURATION