Coupled plasmon modes in an ordered hexagonal monolayer of metal nanoparticles: a direct observation.
We report on the experimental observation of STM-induced photon emission in ultrahigh vacuum on a network of 4-nm silver spheres. The spheres are covered by a dielectric, electrically insulating, organic layer and deposited on Au(111). The bias-dependent spatial distribution of the photon emission rates reveals the electric-field distribution of the different coupled plasmon modes in this model.
Silly
F
F
CEA-Saclay, Service de Recherche sur les Surfaces et l'Irradiation de la Matière, F-91191 Gif-sur-Yvette Cedex, France.
Gusev
A O
AO
Taleb
A
A
Charra
F
F
Pileni
M P
MP