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Interfacing dielectric-loaded plasmonic and silicon photonic waveguides

Theoretical analysis and experimental demonstration
 
: Tsilipakos, O.; Pitilakis, A.; Yioultsis, T.V.; Papaioannou, S.; Vyrsokinos, K.; Kalavrouziotis, D.; Giannoulis, G.; Apostolopoulos, D.; Avramopoulos, H.; Tekin, T.; Baus, M.; Karl, M.; Hassan, K.; Weeber, J.C.; Markey, L.; Dereux, A.; Kumar, A.; Bozhevolnyi, S.I.; Pleros, N.; Kriezis, E.E.

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IEEE Journal of Quantum Electronics 48 (2012), No.5, pp.678-687
ISSN: 0018-9197
English
Journal Article
Fraunhofer IZM ()

Abstract
A comprehensive theoretical analysis of end-fire coupling between dielectric-loaded surface plasmon polariton and rib/wire silicon-on-insulator (SOI) waveguides is presented. Simulations are based on the 3-D vector finite element method. The geometrical parameters of the interface are varied in order to identify the ones leading to optimum performance, i.e., maximum coupling efficiency. Fabrication tolerances about the optimum parameter values are also assessed. In addition, the effect of a longitudinal metallic stripe gap on coupling efficiency is quantified, since such gaps have been observed in fabricated structures.

: http://publica.fraunhofer.de/documents/N-211697.html