Advanced Optical Materials · 2016 · 70 citations · 21 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsNanotechnologyOpticsOptical Properties Of SolidsPeriodic Electromagnetic StructuresPlasmonic MaterialsPlasmonic NanomaterialsPlasmonicsTopological MaterialsLocalized Surface Plasmon ResonanceNear-field Optical MicroscopyNear-field Scanning Optical MicroscopyPlasmonic ImagingPlasmonic NanostructuresScanning Near-field Optical MicroscopySurface Plasmonic NanostructuresSurface Plasmons
Phase-resolved real-space imaging of localized plasmons in Bi1.5Sb0.5Te1.8Se1.2 topological insulator nanostructures is performed by scattering-type scanning near-field optical microscopy. Dipolar and higher order surface plasmon modes with well-defined field amplitude and phase profiles are detected in the visible part of the spectrum.
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