Title :
Metamaterials in waveguide geometries
Author :
Kaiser, Thomas ; Helgert, Christian ; Paul, Thomas ; Wolf, Rainer ; Rockstuhl, Carsten ; Lederer, Falk ; Pertsch, Thomas
Author_Institution :
Inst. of Appl. Phys., Friedrich-Schiller-Univ. Jena, Jena, Germany
Abstract :
Most state-of-the-art optical metamaterials are thin layers of functionalized plasmonic nanostructures of certain geometries. To enhance the understanding how such systems can be used in waveguide geometries, the authors investigate the interaction of a dielectric waveguide with the plasmonic nanostructures. A double cut-wire on top of a slab waveguide was chosen as a model system consisting of a 350 nm thick layer of Si3N4 on a fused silica substrate. Since the waveguide is terminated by air, its refractive index profile is highly asymmetric. Hence, the fundamental transverse magnetic mode possesses a relatively strong electric field component in propagation direction. This configuration allows to probe plasmonic eigenmodes of the double cut-wire.
Keywords :
metamaterials; nanophotonics; nanostructured materials; optical waveguides; plasmonics; silicon compounds; Si3N4; SiO2; dielectric waveguide; double cut-wire; optical metamaterials; plasmonic eigenmodes; plasmonic nanostructures; refractive index profile; size 350 nm; slab waveguide; strong electric field component; transverse magnetic mode; waveguide geometry; Dispersion; Geometry; Gratings; Nanostructures; Optical waveguide theory; Plasmons;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5943642