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

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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
Issue number14
StatePublished - Apr 27 2010

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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