Regensburg 2004 – wissenschaftliches Programm
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HL: Halbleiterphysik
HL 12: Poster I
HL 12.31: Poster
Montag, 8. März 2004, 16:30–19:00, Poster A
Loss mechanisms in Photonic Crystal slabs — •Meikel Frank1, Suresh Pereira1, and Kurt Busch2 — 1Institut für Theorie der Kondensierten Materie, Universität Karlsruhe, 76128 Karlsruhe, Germany — 2School of Optics/CREOL and Department of Physics, University of Central Florida, Orlando, USA
A scattering matrix method [1] is used to study the optical properties of Photonic Crystal slabs. Of special interest is the effect of fabricational tolerances on the propagation characteristics of the modes that are guided in the ideal system. It is shown that modes in dielectric and air bands, respectively, exhibit significantly different behavior for certain types of disorder. For instance, dielectric modes are rather insensitve to errors in the pore radii, whereas they are strongly affected by variations in the lattice constant. In addition, it is shown how reflection and transmission data from finite-sized Photonic Crystal samples may be used to obtain partial information about fabricational imperfections.These results allow one to specify critical parameters for the fabrication of Photonic Crystals.
[1] E.Silberstein, P.Lalanne, J.-P.Hugonin and Q.Cao J.Opt.Soc.Am.A 18 2865 (2001)