Study on Dielectric Function Models for Surface Plasmon Resonance Structure

Abstract

The most common permittivity function models are compared and identifying the best model for further studies is desired. For this study, simulations using several different models and an analytical analysis on a practical surface Plasmon structure were done with an accuracy of ∼94.4% with respect to experimental data. Finite element method, combined with dielectric properties extracted from the Brendel-Bormann function model, was utilized, the latter being chosen from a comparative study on four available models.

Plasmonic Photothermal Therapy in Third and Fourth Biological Windows

“…The electromagnetic simulations are performed by a commercially available Lumerical software under linearly polarized light along the long axis of the NP. The frequency dependent complex dielectric function of gold is approximated by the Brendal-Bormann model which is shown to be in very good agreement with experimental observations in the studied wavelength range [8,9,10]. The refractive index of the environment is set to 1.40 which corresponds to that of living cells [11].…”

Meander‐line‐based defected ground microstrip antenna slotted with split‐ring resonator for terahertz range

“…When electric fields of light are directed between the two rings of SRR, the surface plasmons get excited and begin to resonate. The band intensity and wavelength of the surface plasmons are dependent on the properties of the particle which includes the shape, structure, metal type, size, and dielectric material including air . The SRR structure and equivalent circuit model of an SRR are represented in Figure C,D, respectively.…”

Влияние внутреннего строения биметаллических наночастиц на оптические свойства материала AuAg/стекло

“…Наиболее распространены континуальные методы, в которых природа металлических наночастиц и, реже, окружения, вводится через частотно-зависимые диэлектрические функции ε(ω). Эти функции могут задаваться в аналитической [19][20][21] [4,22,23]. Частицы с размерами менее ∼ 10 nm следует рассматривать с использованием эффективной размерозависимой диэлектрической функции ε(ω, D), учитывающей отличия электронной структуры наночастицы от объемного материала [15,24].…”