Your browser doesn't support javascript.
loading
Electron Acceleration by Relativistic Surface Plasmons in Laser-Grating Interaction.
Fedeli, L; Sgattoni, A; Cantono, G; Garzella, D; Réau, F; Prencipe, I; Passoni, M; Raynaud, M; Kveton, M; Proska, J; Macchi, A; Ceccotti, T.
Afiliación
  • Fedeli L; Enrico Fermi Department of Physics, University of Pisa, 56127 Pisa, Italy.
  • Sgattoni A; National Institute of Optics, National Research Council (CNR/INO), u.o.s Adriano Gozzini, 56124 Pisa, Italy.
  • Cantono G; National Institute of Optics, National Research Council (CNR/INO), u.o.s Adriano Gozzini, 56124 Pisa, Italy.
  • Garzella D; Enrico Fermi Department of Physics, University of Pisa, 56127 Pisa, Italy.
  • Réau F; National Institute of Optics, National Research Council (CNR/INO), u.o.s Adriano Gozzini, 56124 Pisa, Italy.
  • Prencipe I; LIDYL, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France.
  • Passoni M; University of Paris Sud, Orsay 91405, France.
  • Raynaud M; LIDYL, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France.
  • Kveton M; LIDYL, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France.
  • Proska J; Department of Energy, Politecnico di Milano, Milan 20156, Italy.
  • Macchi A; Department of Energy, Politecnico di Milano, Milan 20156, Italy.
  • Ceccotti T; Laboratoire des Solides irradiés, Ecole Polytechnique, CNRS, CEA/DSM/IRAMIS, Université Paris-Saclay, 91128 Palaiseau Cedex, France.
Phys Rev Lett ; 116(1): 015001, 2016 Jan 08.
Article en En | MEDLINE | ID: mdl-26799022
The generation of energetic electron bunches by the interaction of a short, ultraintense (I>10(19) W/cm(2)) laser pulse with "grating" targets has been investigated in a regime of ultrahigh pulse-to-prepulse contrast (10(12)). For incidence angles close to the resonant condition for surface plasmon excitation, a strong electron emission was observed within a narrow cone along the target surface, with energy spectra peaking at 5-8 MeV and total charge of ∼100 pC. Both the energy and the number of emitted electrons were strongly enhanced with respect to simple flat targets. The experimental data are closely reproduced by three-dimensional particle-in-cell simulations, which provide evidence for the generation of relativistic surface plasmons and for their role in driving the acceleration process. Besides the possible applications of the scheme as a compact, ultrashort source of MeV electrons, these results are a step forward in the development of high-field plasmonics.

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2016 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2016 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Estados Unidos