Ultrasensitive terahertz waveguide modulators using graphene metamaterials

We study terahertz-infrared electromagnetic properties of multilayer graphene-dielectric metamaterial and present novel waveguide-based devices: modulators with high modulation depth (> 38 dB at 0.07 eV graphene's Fermi energy change) or extreme sensitivity (modulation depth of > 13.2 dB...

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Bibliographic Details
Published in2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics pp. 169 - 171
Main Authors Khromova, Irina, Andryieuski, Andrei, Lavrinenko, Andrei
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2014
Subjects
Dielectrics
Graphene
Metamaterials
Modulation
Nonhomogeneous media
Optical waveguides
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Summary:We study terahertz-infrared electromagnetic properties of multilayer graphene-dielectric metamaterial and present novel waveguide-based devices: modulators with high modulation depth (> 38 dB at 0.07 eV graphene's Fermi energy change) or extreme sensitivity (modulation depth of > 13.2 dB at 0.001 eV Fermi energy variation), and tunable passband filters (10% central frequency shift per 0.004 eV Fermi energy change).
DOI:10.1109/MetaMaterials.2014.6948634