Title :
On the Boundedness of the In-Plane Wavenumbers Through Metal–Dielectric Multilayers
Author_Institution :
Sch. of Inf. & Commun. Eng., Inha Univ., Incheon, South Korea
fDate :
3/15/2011 12:00:00 AM
Abstract :
Wavenumber matching is crucial to proper designs of optical devices such as ring-bus waveguides or planar cavities. In particular, the range of in-plane wavenumbers needs to be adequately determined along the coupling direction. Oftentimes, numerically intensive search is necessary for its accurate determination for surface plasmon resonances in particular nanostructures. In this paper, a method based on contour integrals is employed in order to provide a rough idea on the coupling capability of participating optical components. An example is provided for a semi-infinite metal-dielectric periodic multilayer bounded by another semi-infinite medium.
Keywords :
integral equations; integrated optics; metal-insulator boundaries; optical couplers; optical design techniques; optical multilayers; optical resonators; optical waveguides; periodic structures; surface plasmon resonance; contour integrals; coupling capacity; in-plane wavenumber; metal-dielectric multilayers; optical design; periodic multilayer; planar cavities; ring-bus waveguides; semiinfinite medium; surface plasmon resonance; Cavity resonators; Couplings; Dispersion; Nonhomogeneous media; Optical surface waves; Optical waveguides; Contour integrals; electromagnetic waves; in-plane wavenumber (IPWN); metal–dielectric multilayers; surface plasmon resonance (SPR); waveguide coupling; wavenumber mismatch;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2011.2111452
