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Metamaterial electro-optic switch of nanoscale thickness

By Z.L. Sámson, K.F. MacDonald, F. De Angelis, Behrad Gholipour, K. Knight, C.C. Huang, E. Di Fabrizio, D.W. Hewak and N.I. Zheludev

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

Topics: QC
Year: 2010
DOI identifier: 10.1063/1.3355544
OAI identifier: oai:eprints.soton.ac.uk:148949
Provided by: e-Prints Soton
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