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Doping concentration tuning and plasmonic optical properties modelling of metal nano particles utilizing fdtd method

  • Mehran Rafiee
  • , Subhash Chandra
  • , Hind Ahmed
  • , Aaron Glenn
  • , Conor Mc Loughlin
  • , Sarah J. McCormack

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Among noble metal nano particles (MNPs), plasmonic effect of gold and silver nano particles (Au NPs and Ag NPs) is interesting to study due to their high near-field energy. This makes them excellent particles to absorb and scatter incident radiation in optical applications such as coupling them to fluorescent emitters to enhance their radiative decay and emission rate. This paper reviews and studies the methodology required for tuning the doping concentration and modelling plasmonic optical properties of Au NPs and Ag NPs by using finite difference time domain (FDTD) method. The frequency-dependent optical behaviour of MNPs is discussed. Plasmonic optical properties of MNPs can be characterised by their dimension, shape and doping concentration. Dimension and shape of MNPs can be simply defined in FDTD space grid (known as Yee grid). However, tuning MNPs doping concentration is more challenging which is undertaken by changing the spacing between MNPs and lateral boundaries of FDTD Yee grid. This can be vastly useful in Au NPs and Ag NPs optical optimization and applications to estimate plasmonic resonance based on doping concentration of particles.

Original languageEnglish
Title of host publication Frontiers of Composite Materials IV
EditorsDarren Martin, Tatiana Perova
PublisherTrans Tech Publications Ltd
Pages197-202
Number of pages6
ISBN (Print)9783035715965
DOIs
Publication statusPublished - 2020
Externally publishedYes
Event4th International Conference on Frontiers of Composite Materials, ICFCM 2019 and 4th International Conference on Energy Engineering and Smart Materials, ICEESM 2019 - Brisbane, Australia
Duration: 13 Nov 201916 Nov 2019

Publication series

NameMaterials Science Forum
Volume995 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference4th International Conference on Frontiers of Composite Materials, ICFCM 2019 and 4th International Conference on Energy Engineering and Smart Materials, ICEESM 2019
Country/TerritoryAustralia
CityBrisbane
Period13/11/1916/11/19

Keywords

  • Ag NP
  • Au NP
  • Concentration
  • FDTD
  • MNP
  • Plasmonic

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