Single-particle plasmon resonance spectroscopy of phase transition in vanadium dioxide

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Dang Yuan Lei
  • Kannatassen Appavoo
  • Yannick Sonnefraud
  • Richard F. Haglund Jr.
  • Stefan A. Maier

Detail(s)

Original languageEnglish
Pages (from-to)3988-3990
Journal / PublicationOptics Letters
Volume35
Issue number23
Online published23 Nov 2010
Publication statusPublished - 1 Dec 2010
Externally publishedYes

Abstract

We demonstrate thermally controlled plasmon resonance modulation of single gold nanoparticles on vanadium dioxide thin films by performing dark-field spectroscopy measurements at different temperatures. The plasmon resonance of the nanoparticles exhibits a significant blueshift in the visible range when the vanadium dioxide film undergoes its insulator-to-metal phase transition around 67 °C. More importantly, the resonance shift shows a clear hysteresis, mirroring the behavior of the vanadium dioxide film. At a fixed wavelength, the scattering intensity of Au particles also shows a hysteretic behavior decorated with an overshoot before (after) the insulator-metal (metal- insulator) phase transition of the vanadium dioxide film, suggesting that the nanoparticle is probing local variations in the phase transition.

Citation Format(s)

Single-particle plasmon resonance spectroscopy of phase transition in vanadium dioxide. / Lei, Dang Yuan; Appavoo, Kannatassen; Sonnefraud, Yannick et al.
In: Optics Letters, Vol. 35, No. 23, 01.12.2010, p. 3988-3990.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review