META 2021, META'12

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Plasmonic Behavior in Symmetry Broken Nanostructures
X. Zhu, Z. Fang, J. LI, F. Lin

Last modified: 2012-02-23


Surface plasmon polariton (SPP) as the collective vibration of electro-magnetic field at the interface between metallic and dielectric media, has unique properties in the propagation, focusing and waveguiding, it has found applications in nano-optics and nano-phononic devices. In this contribution, we will show our latest results of Plasmonics properties in symmetry broken nanostructures, such as the subwavelength focusing of SPP in unsymmetrical metallic rings, and the Fano resonance in Ag nanodisks. Combing Scanning Near-field Optical Microscopy (SNOM) and spectroscopy technique, we characterized such unique properties and numerical simulations. The other properties of SPP will be also discussed, such as the conversion and detection of plasmon polariton (SPP), plasmonic propagation, field enhancement, coupling between devices, as well as the design of new plasmonic nanostructures and their characterization.