Quantum corrected model for plasmonic nanoparticles: A boundary element method implementation

Abstract

We present a variant of the recently developed quantum corrected model (QCM) for plasmonic nanoparticles [Nature Commun. 3, 825 (2012)] using non-local boundary conditions. The QCM accounts for electron tunneling in narrow gap regions of coupled metallic nanoparticles, leading to the appearance of new charge transfer plasmons. Our approach has the advantages that it emphasizes the non-local nature of tunneling and introduces only contact resistance, but not ohmic losses through tunneling. Additionally, it can be implemented much easier in boundary element method (BEM) approaches. We develop the methodology for the QCM using non-local boundary conditions, and present simulation results of our BEM implementation which are in good agreement with those of the original QCM.

6 pages, 4 figures

References in corpus (5)

• MNPBEM - A Matlab toolbox for the simulation of plasmonic nanoparticles
• Generalized nonlocal optical response in nanoplasmonics
• Surface Plasmons and Nonlocality: a Simple Model
• Simulating electron energy loss spectroscopy with the MNPBEM toolbox
• Theory of light emission from quantum noise in plasmonic contacts: above-threshold emission from higher-order electron-plasmon scattering

Cited by in corpus (6)

• Gap plasmonics of silver nanocube dimers
• Circular dichroism in nanoparticle helices as a template for assessing quantum-informed models in plasmonics
• Optical modes in slab waveguides with magnetoelectric effect
• Monitoring strong coupling in nonlocal plasmonics with electron spectroscopies
• Ab-initio approach for gap plasmonics
• $T$-matrix method for calculation of second-harmonic generation in clusters of spherical particles