Frankfurt 2006 – scientific programme
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Q: Quantenoptik und Photonik
Q 35: Poster Photonische Kristalle
Q 35.6: Poster
Tuesday, March 14, 2006, 16:30–18:30, Labsaal
Interface Design in Photonic Crystals — •Daniel Hermann1,2, Sergei Mingaleev1,2, and Kurt Busch1,2,3 — 1Institut für Theoretische Festkörperphysik, Universität Karlsruhe — 2DFG Forschungszentrum Center for Functional Nanostructures (CFN), Universität Karlsruhe — 3Institut für Nanotechnologie, Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft
We present scattering matrix calculations using localized photonic Wannier functions as optimally adapted basis [1,2] to efficiently characterize interfaces between different photonic functional elements, such as coupled waveguides in two different photonic crystals. The Wannier function S-matrix approach allows us to design the coupling region in such a way that the transmission through these interfaces is optimized over a desired frequency range. Furthermore, the method may also be applied to find efficient coupling designs between slab waveguides and PC line defect waveguides.
[1] J. Phys.: Condens. Matter 15, R1233 (2003)
[2] Opt. Lett. 28, 619 (2003)