Open AccessSize-dependence of the Lorentz friction for surface plasmons in metallic nanospheres
Author(s) -
Witold Jacak
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.004472
Subject(s) - surface plasmon , surface plasmon resonance , plasmon , radius , resonance (particle physics) , materials science , condensed matter physics , lorentz force , hyperboloid model , lorentz transformation , localized surface plasmon , metal , optics , phase (matter) , physics , atomic physics , nanotechnology , classical mechanics , quantum mechanics , nanoparticle , magnetic field , computer security , computer science , minkowski space , metallurgy
An inclusion of the Lorentz friction to the damping of plasmons in metallic nanosphere is performed within the random phase approximation quasiclassical approach. The explanation of the experimentally observed anomalous red shift of plasmon resonance frequency with increase of the metallic particle radius for a large size limit is given and the perfect coincidence of the measured plasmon resonance red shift for Au nanospheres with radii 10 - 75 nm and the theory with accurately included Lorentz friction is demonstrated.