Quantum Mechanical study of the coupling of plasmon excitations to atomic scale electron transport
Artikel i vetenskaplig tidskrift, 2011

The coupling of optical excitation and electron transport through a sodium atom in a plasmonic dimer junction is investigated using time-dependent density functional theory. The optical absorption and dynamic conductance is determined as a function of gap size. Surface plasmons are found to couple to atomic-scale transport through several different channels including dipolar, multipolar, and charge transfer plasmon modes. These findings provide insight into subnanoscale couplings of plasmons and atoms, a subject of general interest in plasmonics and molecular electronics.

surface plasmons

absorption coefficients

excitons

charge exchange

plasmonics

density functional theory

Författare

Peng Song

Peter Nordlander

Shiwu Gao

Göteborgs universitet

Journal of Chemical Physics

0021-9606 (ISSN) 1089-7690 (eISSN)

Vol. 134 7 074701-

Ämneskategorier

Fysik

Kemi

Den kondenserade materiens fysik

DOI

10.1063/1.3554420