Projects per year
Abstract
An efficient procedure is introduced for the calculation of the optical response of individual and coupled metallic nanoparticles in the framework of the discrete-dipole approximation (DDA). We introduce a modal expansion in the basis set of discrete dipoles and show that a few suitably selected modes are sufficient to compute optical spectra with reasonable accuracy, thus reducing the required numerical effort relative to other DDA approaches. Our method offers a natural framework for the study of localized plasmon modes, including plasmon hybridization. As a proof of concept, we investigate optical extinction and electron energy-loss spectra of monomers, dimers, and quadrumers formed by flat silver squares. This method should find application to the previously prohibited simulation of complex particle arrays.
Original language | English |
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Article number | 245439 |
Number of pages | 10 |
Journal | Physical Review B |
Volume | 88 |
Issue number | 24 |
DOIs | |
Publication status | Published - 26 Dec 2013 |
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Projects
- 1 Active
Equipment
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High Performance Computing Technology Platform
Benoît Champagne (Manager)
Technological Platform High Performance ComputingFacility/equipment: Technological Platform
Activities
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Raoul ARENAL de la CONCHA
Luc Henrard (Host)
9 Dec 2013 → 13 Dec 2013Activity: Hosting a visitor types › Hosting an academic visitor
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"March" meeting -- homage to Prof. Norman H. March
Luc Henrard (Speaker)
23 Nov 2013Activity: Participating in or organising an event types › Participation in workshop, seminar, course
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F. Javier García de Abajo
Luc Henrard (Host)
16 Apr 2013Activity: Hosting a visitor types › Hosting an academic visitor