Metamaterial electro-optic switch of nanoscale thickness

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 tra...

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Bibliographic Details
Published in:Applied physics letters 2010-04, Vol.96 (14), p.143105-143105-3
Main Authors: Sámson, Z. L., MacDonald, K. F., De Angelis, F., Gholipour, B., Knight, K., Huang, C. C., Di Fabrizio, E., Hewak, D. W., Zheludev, N. I.
Format: Article
Language:English
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Summary: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.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3355544