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Updated: Jul 2, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
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Modelling the optical response of gold nanoparticles.

Viktor Myroshnychenko1, Jessica Rodríguez-Fernández, Isabel Pastoriza-Santos

  • 1Instituto de Optica-CSIC, Serrano 121, 28006 Madrid, Spain.

Chemical Society Reviews
|September 3, 2008
PubMed
Summary

This review covers theoretical methods for predicting gold nanoparticle optical responses. It compares models, offering insights into particle size effects and spectral analysis for spectroscopy applications.

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Area of Science:

  • Nanotechnology
  • Physical Chemistry
  • Computational Physics

Background:

  • Gold nanoparticles exhibit unique optical properties influenced by size and environment.
  • Understanding these optical responses is crucial for applications in sensing and spectroscopy.
  • Various theoretical models exist, each with strengths and limitations.

Purpose of the Study:

  • To provide a comprehensive overview of theoretical methods for predicting gold nanoparticle optical responses.
  • To critically compare different theoretical approaches, aiding researchers in model selection.
  • To elucidate the impact of retardation and non-locality effects on nanoparticle spectra.

Main Methods:

  • Review and comparison of established theoretical frameworks.
  • Discussion of analytical models for optical response prediction.

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  • Analysis of far-field and near-field spectral characteristics.

    • Main Results:

    • Theoretical methods offer diverse approaches to understanding gold nanoparticle optics.
    • Analytical models reveal the significance of retardation in large particles and non-locality in small particles.
    • Near-field spectra are particularly relevant for surface-enhanced Raman spectroscopy and electron energy-loss spectroscopy.

    Conclusions:

    • The choice of theoretical method depends on the specific problem and desired insights.
    • Accurate prediction of optical responses requires consideration of particle size-dependent phenomena.
    • Near-field optical properties are key for advanced spectroscopic techniques involving gold nanoparticles.