From localized to long-range plasmons in metallic nano-platelets

Nahid Talebi; Wilfried Sigle; Ralf Vogelgesang; Burcu Ogut; Lin Gu; Christoph Koch; Peter Van Aken

META 2021, META'12

Nahid Talebi, Wilfried Sigle, Ralf Vogelgesang, Burcu Ogut, Lin Gu, Christoph Koch, Peter Van Aken

Last modified: 2012-01-03

Abstract

Using energy-filtered transmission electron microscopy, plasmonic resonances of Aunano-platelets over a thin substrate is investigated. The experimental data reveals plasmonic modeswhich confined to the edges. The experimental results are verified by means of the finite-differencetime-domain method, which show that the obtained modes are due to the excitation ofwedge-plasmon modes.

Keywords

Wedge Plasmon, nano-platelet, Finite-difference time-domain method, Energy-filtered transmission electron microscopy