Metamaterial electro-optic switch of nanoscale thickness

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

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291 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 - 2010
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported in the U.K. by the Engineering and Physical Sciences Research Council and the Royal Society and in Italy under EU Project Nos. FP6-NMP-STRP 032131 ‘DIPNA’ and FP7-NMP 229375-2 ‘SMD’, and the Ministry of Education, University, and Research Project No. MIUR-PRIN2008. G. Adamo is gratefully acknowledged for preparing Fig. 1(a).

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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