Electromagnetic modeling of ellipsoidal nanoparticles for sensing applications

Luigi La Spada, Renato Iovine, Lucio Vegni

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)
14 Downloads (Pure)


We present a new analytical study of metallic nanoparticles, working in the infrared and visible frequency range. The structure consists of triaxial ellipsoidal resonating inclusions embedded in a dielectric environment. Our aim is to develop a new analytical model for the ellipsoidal nanoparticles to describe their resonant behaviors and design structures that satisfy specific electromagnetic requirements. The obtained models are compared to the numerical values, performed by full-wave simulations, as well as to the experimental ones reported in literature. A good agreement among these results was obtained. The proposed formula is a useful tool to design such structures for sensing applications.

Original languageEnglish
Article number051205
Number of pages6
JournalOptical Engineering
Issue number5
Publication statusPublished - 13 Mar 2013

Bibliographical note

Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.


  • analytical models
  • biomedical applications
  • ellipsoidal nanoparticles
  • localized surface plasmon resonance

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)


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