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Proceedings Paper

Fabrication of plasmonic waveguides for device applications
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Paper Abstract

We report on experimental realization of different metal-insulator geometries that are used as plasmonic waveguides guiding electromagnetic radiation along metal-dielectric interfaces via excitation of surface plasmon polaritons (SPPs). Three configurations are considered: metal strips, symmetric nanowires and nanowire pairs embedded in a dielectric, and metal V-shaped grooves. Planar plasmonic waveguides based on nm-thin and μm-wide gold strips embedded in a polymer that support propagation of long-range SPPs are shown to constitute an alternative for integrated optical circuits. Using uniform and thickness-modulated gold strips different waveguide components including reflecting gratings can be realized. For applications where polarization is random or changing, metal nanowire waveguides are shown to be suitable candidates for efficient guiding of arbitrary polarized light. Plasmonic waveguides based on metal V-grooves that offer subwavelength confinement are also considered. We focus on recent advances in manufacturing of nanostructured metal strips and metal V-grooves using combined UV, electron-beam and nanoimprint lithography.

Paper Details

Date Published: 28 September 2007
PDF: 12 pages
Proc. SPIE 6638, Photonic Metamaterials, 663804 (28 September 2007); doi: 10.1117/12.732836
Show Author Affiliations
Alexandra E. Boltasseva, Technical Univ. of Denmark (Denmark)
Kristjan Leosson, Univ. of Iceland (Iceland)
Tiberiu Rosenzveig, Univ. of Iceland (Iceland)
Rasmus B. Nielsen, Technical Univ. of Denmark (Denmark)
Rasmus H. Pedersen, Technical Univ. of Denmark (Denmark)
Kasper B. Jørgensen, Technical Univ. of Denmark (Denmark)
Irene Fernandez-Cuesta, Technical Univ. of Denmark (Denmark)
Univ. Autònoma de Barcelona (Spain)
Jesper Jung, Aalborg Univ. (Denmark)
Thomas Søndergaard, Aalborg Univ. (Denmark)
Sergey I. Bozhevolnyi, Aalborg Univ. (Denmark)
Anders Kristensen, Technical Univ. of Denmark (Denmark)

Published in SPIE Proceedings Vol. 6638:
Photonic Metamaterials
Mikhail A. Noginov; Nikolay I. Zheludev; Allan D. Boardman; Nader Engheta, Editor(s)

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