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

Dangyuan Lei, Kannatassen Appavoo, Yannick Sonnefraud, Richard F. Haglund, Stefan A. Maier

Research output: Journal article publicationJournal articleAcademic researchpeer-review

61 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)3988-3990
Number of pages3
JournalOptics Letters
Issue number23
Publication statusPublished - 1 Dec 2010
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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