Surface plasmon resonances of clustered nanoparticles

Abstract

Linear clusters made by tightly connecting two or more metallic nanoparticles have new types of surface plasmon resonances as compared to isolated nanoparticles. These new resonances are related to the size of the junction and to the number of interconnected particles and have direct interpretation as eigenmodes of a Boundary Integral Equation (BIE). This formulation allows effective separation of geometric and shape contribution from electric properties of the constituents. Results for particles covered by a thin shell are also provided. In addition, the present analysis sheds a new light on the interpretation of recent experiments from literature.

12 pages, 3 figures, to be published in Plasmonics and posted online

References in corpus (3)

• Plasmons in nearly touching metallic nanoparticles: singular response in the limit of touching dimers
• Input Impedance, Nanocircuit Loading, and Radiation Tuning of Optical Nanoantennas
• Linear dielectric response of clustered living cells

Cited by in corpus (4)

• Shape effects on localized surface plasmon resonances in metallic nanoparticles
• Eigenmode decomposition of the near-field enhancement in localized surface plasmon resonances of metallic nanoparticles
• Applications of electrostatic capacitance and charging
• Analytical results regarding electrostatic resonances of surface phonon/plasmon polaritons: separation of variables with a twist