Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 14, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3355544
Keywords
chalcogenide glasses; dielectric properties; electron spin polarisation; electro-optical switches; metamaterials; photoemission
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Funding
- U.K. by the Engineering and Physical Sciences Research Council
- Royal Society
- EU [FP6-NMP-STRP 032131, FP7-NMP229375-2]
- Ministry of Education University, and Research [MIUR-PRIN2008]
- EPSRC [EP/G060363/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G060363/1] Funding Source: researchfish
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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.
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