title: Ultrafast strong-field photoemission from plasmonic nanoparticles.
abstract: We demonstrate the ultrafast generation of electrons from tailored metallic nanoparticles and unravel the role of plasmonic field enhancement in this process by comparing resonant and off-resonant particles, as well as different particle geometries. We find that electrons become strongly accelerated within the evanescent fields of the plasmonic nanoparticles and escape along straight trajectories with orientations governed by the particle geometry. These results establish plasmonic nanoparticles as versatile ultrafast, nanoscopic sources of electrons.
authors: Wigner Research Centre for Physics, Konkoly-Thege M. út 29-33, 1121 Budapest, Hungary. dombi.peter@wigner.mta.hu
authors: Péter
authors: P
authors: Dombi
authors: Anton
authors: A
authors: Hörl
authors: Péter
authors: P
authors: Rácz
authors: István
authors: I
authors: Márton
authors: Andreas
authors: A
authors: Trügler
authors: Joachim R
authors: JR
authors: Krenn
authors: Ulrich
authors: U
authors: Hohenester