Metamaterial electro-optic switch of nanoscale thickness

Z. L. Sámson, K. F. MacDonald, F. De Angelis, B. Gholipour, K. Knight, C. C. Huang, Enzo Di Fabrizio, D. W. Hewak, N. I. Zheludev

Research output: Contribution to journalArticlepeer-review

247 Scopus citations

Abstract

We demonstrate an innovative concept for nanoscale electro-optic switching. It exploits the frequency shift of a narrow-band Fano resonance mode in a plasmonic planar metamaterial induced by a change in the dielectric properties of an adjacent chalcogenide glass layer. An electrically stimulated transition between amorphous and crystalline forms of the glass brings about a 150 nm shift in the near-infrared resonance providing transmission modulation with a contrast ratio of 4:1 in a device of subwavelength thickness.

Original languageEnglish (US)
Article number143105
JournalApplied Physics Letters
Volume96
Issue number14
DOIs
StatePublished - Apr 27 2010

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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