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Project

A Volume Integral Equation (VIE) Algorithm to Model the Non-local Electromagnetic Response of Deep Nanometer Scatterers

Since deep-nanometer scale systems are increasingly studied, accurate macroscopic theories dealing with quantum mechanical effects are in high demand. Concerning the electromagnetic nonlocal response of plasmonic nanostructures, several hydrodynamic models (HDM) have been proposed, each introducing an additional boundary condition to describe the collective motion of the electronic gas. In this work, four HDMs, namely the hard wall hydrodynamic model (HW-HDM), the curl-free hydrodynamic model (CF-HDM), the shear forces hydrodynamic model (SF-HDM), and the quantum hydrodynamic model (Q-HDM), have been thoroughly investigated. This is done through the analytical study of the near and far field properties of plasmonic nanoparticles. The above HDMs have been also tested against other local and nonlocal response approaches and experiments. It is shown that not all HDMs provide an accurate prediction of the nanoparticles’ behavior. The emitter–nanoparticles interaction may be strongly affected by the nonlocality, based on the analysis of the local density of states and fluorescence enhancement of the system.

Date:4 Nov 2015 →  31 Mar 2021
Keywords:computational electromagnetics, nanometer scale, plasmonics
Disciplines:Nanotechnology, Design theories and methods, Communications, Communications technology
Project type:PhD project