Switchable plasmon-induced transparency in gold nanoarrays on vanadium dioxide film

Academic Article

Abstract

  • A proof-of-concept demonstration of switchable plasmon-induced transparency is presented in gold (Au) dolmen structures on a vanadium dioxide (VO 2) thin film. The dolmen structures were made by a combination of high-resolution electron-beam lithography on VO2 films deposited by electron-beam evaporation. A 100 nm (160 meV) modulation of the plasmon resonance of the dolmen structure due to the phase transition of the vanadium dioxide is observed. The plasmon resonance width is a factor 2-3 narrower than what was observed for Au nanodisks on a VO2 film in previous studies, due to the interference between the bright and dark modes of the plasmon structure. This experiment shows how one can combine a phase-change material with multielement plasmonic nanostructures to optimize the performance of optical switches and sensors based on metamaterial structures. © 2013 American Vacuum Society.
  • Digital Object Identifier (doi)

    Author List

  • McGahan C; Appavoo K; Haglund RF; Shapera EP
  • Volume

  • 31
  • Issue

  • 6