Near-Field Characterisation Of Anisotropic All-Dielectric Terahertz Resonators
2016 10TH INTERNATIONAL CONGRESS ON ADVANCED ELECTROMAGNETIC MATERIALS IN MICROWAVES AND OPTICS (METAMATERIALS)(2016)
摘要
We extract the intrinsic properties of micrometre-sized anisotropic dielectric resonators through near-field time-domain terahertz spectorscopy. Narrow terahertz resonances corresponding to magnetic dipole modes in approximate to 30 mu m-sized mono-crystalline TiO2 spheres split due to material anisotropy. Ensembles of TiO2 resonators can form complex meta-atoms for unusual electromagnetic response in terahertz all-dielectric metamaterials.
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关键词
near-field characterisation,anisotropic all-dielectric terahertz resonators,micrometre-sized anisotropic dielectric resonators,near-field time-domain terahertz spectorscopy,narrow terahertz resonances,magnetic dipole modes,monocrystalline titanium dioxide spheres,material anisotropy,complex meta-atoms,electromagnetic response,terahertz all-dielectric metamaterials
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