Second-harmonic generation in gallium nanoparticle monolayers across the solid-to-liquid phase transition

A. Stella*, S. Achilli, M. Allione, A. M. Malvezzi, M. Patrini, R. Kofman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We report on second-harmonic generation from Ga nanoparticle monolayers embedded in a dielectric transparent matrix for different average radii and at different temperatures. The nanoparticles are produced in the liquid phase by means of a self-organized process in ultra high vacuum (Vollmer-Weber mode). The measurements show a strong size dependence of the second-harmonic signal. A wide hysteresis cycle appears in correspondence of the melting-solidification process. The experimental results have been analyzed through a nonlinear Mie scattering model and explained in terms of the coupling of SH radiation with surface plasma oscillations in the nanoparticles.

Original languageEnglish (US)
Pages (from-to)619-621
Number of pages3
JournalMicroelectronics Journal
Issue number5-8
StatePublished - May 2003
Externally publishedYes


  • Dielectric matrix
  • Ga nanoparticle
  • Second-harmonic generation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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