| In this dissertation, research results of two plasmonics related projects will be presented. The first project is mainly focused on modeling the circular and spiral metallic nano-gratings. Their applications in generating azimuthally and radially polarized beam and focusing near field will be discussed. The second project is to design and fabricate various MDM plasmonic cavities and to explore the resonance modes inside the cavities and the excitation conditions of these modes. The potential applications of these studied MDM plasmonic structures in integrated photonics will also be presented. |
