Scientific Results

Electron Acceleration by Relativistic Surface Plasmons in Laser-Grating Interaction

Year: 2016

Authors: Fedeli L., Sgattoni A., Cantono G., Garzella D., Réau F., Prencipe I., Passoni M., Raynaud M., Květoň M., Proska J., Macchi A., Ceccotti T.

Autors Affiliation: 1) Enrico Fermi Department of Physics, University of Pisa, 56127 Pisa, Italy
2) National Institute of Optics, National Research Council (CNR/INO), u.o.s Adriano Gozzini, 56124 Pisa, Italy
3) LIDYL, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
4) University of Paris Sud, Orsay 91405, France
5) Department of Energy, Politecnico di Milano, Milan 20156, Italy
6) Laboratoire des Solides irradiés, Ecole Polytechnique, CNRS, CEA/DSM/IRAMIS, Université Paris-Saclay, 91128 Palaiseau Cedex, France
7) FNSPE, Czech Technical University, Prague 11519, Czech Republic

Abstract: The generation of energetic electron bunches by the interaction of a short, ultraintense (I>1019  W/cm2) laser pulse with “grating” targets has been investigated in a regime of ultrahigh pulse-to-prepulse contrast (1012). 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.


Volume: 116 (1)      Pages from: 015001-1  to: 015001-6

KeyWords: laser-plasma acceleration; electron acceleration; surface plasmons; high field plasmonics;
DOI: 10.1103/PhysRevLett.116.015001

Citations: 35
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-12-05
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here

This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more