Regensburg 2010 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 60: Poster II: Optical Properties, incl. Photonic Crystals and Ultrafast Phenomena

HL 60.6: Poster

Donnerstag, 25. März 2010, 18:00–20:00, Poster D1

Simulation of Photonic Crystal Microcavities in Silicon-on-Insulator Waveguides — •Lin Zschiedrich1, Jan Pomplun2, Frank Schmidt1,2, and Sven Burger1,21JCMwave GmbH, Berlin — 2Zuse Institute Berlin (ZIB)

Photonic crystal microcavities can strongly confine light within a small volume. High Q factors of such structures have been reported [1,2].

We have developed finite-element method (FEM) based solvers for the Maxwell eigenvalue and for the Maxwell scattering problems. The method is based on higher order vectorial elements, adaptive unstructured grids, and on a rigorous treatment of transparent boundaries.

We have simulated experimental setups reported in the literature [1,2]. We present a convergence analysis of the numerical results, and we present very good agreement with experimental results. We further investigate the influence of structural parameters, such as placement and tilt of photonic crystal air holes, on the microcavity Q factor.

[1] P. Velha et al., New J. Phys. 8, 1 (2006).

[2] A. R. M. Zain et al., Opt. Expr. 16, 12084 (2008).

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