Real-time plasmon resonance tuning of liquid Ga nanoparticles by in situ spectroscopic ellipsometry


Journal Article

Liquid Ga nanoparticles have been deposited on sapphire substrates at room temperature. The optical evolution of Ga nanoparticle surface plasmon resonance during deposition has been characterized by in situ real-time spectroscopic ellipsometry to control and tune the plasmon resonance photon energy. The existence of both longitudinal and transverse modes for spheroidal Ga nanoparticles supported on a sapphire substrate is demonstrated and the dependence of the longitudinal and transverse plasmon energies on particle size is discussed. Stability of the Ga surface plasmon resonance to air exposure and high temperature is also demonstrated. © 2007 American Institute of Physics.

Full Text

Duke Authors

Cited Authors

  • Wu, PC; Kim, TH; Brown, AS; Losurdo, M; Bruno, G; Everitt, HO

Published Date

  • March 16, 2007

Published In

Volume / Issue

  • 90 / 10

International Standard Serial Number (ISSN)

  • 0003-6951

Digital Object Identifier (DOI)

  • 10.1063/1.2712508

Citation Source

  • Scopus