Title: Excitation of multiple dipole surface plasmon resonances in spherical silver nanoparticles
Authors: Niesen, Bjoern ×
Rand, Barry P
Van Dorpe, Pol
Shen, Honghui
Maes, Bjorn
Genoe, Jan
Heremans, Paul #
Issue Date: Aug-2010
Publisher: Optical soc amer
Series Title: Optics express vol:18 issue:18 pages:19032-19038
Abstract: We observe the appearance of multiple dipole surface plasmon resonances in spherical Ag nanoparticles when embedded in an organic semiconductor that exhibits a highly dispersive permittivity. Comparing the absorption spectra of thin-films with and without Ag nanoparticles reveals the presence of two plasmon peaks. Numerical simulations and calculations based on an electrostatic model allow us to attribute both peaks to dipole resonances, and show that the strong dispersion of the organic permittivity is responsible for this behavior. The presence of these two plasmon resonances was found to enhance the absorption of the organic semiconductor over a broad wavelength range. (c) 2010 Optical Society of America
ISSN: 1094-4087
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
Associated Section of ESAT - INSYS, Integrated Systems
× corresponding author
# (joint) last author

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