A simulation of the plasmonic absorption of the silica glasses with copper selenide nanoparticles

TL;DR

This paper simulates the plasmonic absorption in silica glasses embedded with copper selenide nanoparticles using Drude theory, analyzing how resonance depends on various physical parameters and matching experimental spectra.

Contribution

It introduces a simulation approach for plasmonic absorption in nanoparticle-doped glasses based on Drude theory, linking resonance features to material parameters.

Findings

Resonance absorption varies with plasmonic frequency, damping, and dielectric function.

Charge carrier concentration is estimated from resonance spectra.

Resonance positions and widths span visible to near-IR ranges.

Abstract

The plasmonic optical absorption of the silica glasses containing copper selenide nanoparticles is simulated on the basis of Drude theory. The plasmonic resonance absorption is studied in dependence on plasmonic frequency, damping factor and the matrix dielectric function. The charge carrier concentration in the nanoparticles is evaluated through the plasmonic frequency for the spectra of closest correspondence to experimental. The plasmon resonance position and the width of maxima are varied throughout the visible and near-IR ranges for the above parameters of experimental glasses with Cu2-xSe nanoparticles.