Modulation of the gold particle-plasmon resonance by the metal-semiconductor transition of vanadium dioxide

J. Y. Suh, E. U. Donev, D. W. Ferrara, K. A. Tetz, Leonard C Feldman, R. F. Haglund

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

We report experimental observations of relative blue-shifts in the particle-plasmon resonance of gold nanoparticles (Au NPs) covered with a vanadium dioxide (VO2) film as the VO2 material undergoes a semiconductor-to-metal transition at approximately 67 °C. Although the extinction spectra of the Au NPs exhibit significant red-shifts in the presence of the surrounding VO2 film as compared to the same particles in air, the key result of this work is the dynamically controlled blue-shift of the Au-NP dipole resonance upon thermal switching of the VO2 overlayer from the semiconducting to the metallic state. We also report on the size and polarization dependence of the extinction spectra for both states, and present Mie theory calculations that confirm in a semi-quantitative way the observed trends in the VO2-induced modulation of the Au-NP plasmon resonance, and their origin in the VO2 dielectric function.

Original languageEnglish
Article number055202
JournalJournal of Optics A: Pure and Applied Optics
Volume10
Issue number5
DOIs
Publication statusPublished - May 1 2008

Fingerprint

dioxides
Gold
Vanadium
vanadium
Metals
Modulation
Semiconductor materials
gold
modulation
blue shift
extinction
metals
Mie scattering
red shift
Transition metals
transition metals
Polarization
dipoles
Nanoparticles
trends

Keywords

  • Au
  • Extinction blue-shift
  • Gold
  • Localized surface-plasmon resonance
  • LSPR
  • Metal-semiconductor transition
  • Nanocomposite
  • Nanoparticles
  • PLD
  • Pulsed-laser deposition
  • Vanadium dioxide
  • VO2

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Modulation of the gold particle-plasmon resonance by the metal-semiconductor transition of vanadium dioxide. / Suh, J. Y.; Donev, E. U.; Ferrara, D. W.; Tetz, K. A.; Feldman, Leonard C; Haglund, R. F.

In: Journal of Optics A: Pure and Applied Optics, Vol. 10, No. 5, 055202, 01.05.2008.

Research output: Contribution to journalArticle

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AU - Feldman, Leonard C

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